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Finisar Corporation patents


Recent patent applications related to Finisar Corporation. Finisar Corporation is listed as an Agent/Assignee. Note: Finisar Corporation may have other listings under different names/spellings. We're not affiliated with Finisar Corporation, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "F" | Finisar Corporation-related inventors


 new patent  Method and apparatus for characterization and compensation of optical impairments in inp-based optical transmitter

A method and apparatus for characterizing and compensating optical impairments in an optical transmitter includes operating an optical transmitter comprising a first and second parent mz, each comprising a plurality of child mz modulators that are biased at respective initial operating points. An electro-optic rf transfer function is generated for each of the plurality of child mz modulators. ... Finisar Corporation

 new patent  Light sources with chip-level integrated diffusers

An embodiment includes a light source. The light source may include a substrate and an integrated diffuser. ... Finisar Corporation

 new patent  Sweep control of an optical heterodyne measurement system

Described herein is a system and method of controlling an optical heterodyne measurement system (1). The measurement system (1) has a tunable laser (9) for generating a local oscillator signal, an optical input (5) for receiving an input optical signal (7) and a mixing module (13) for mixing the local oscillator signal with the input optical signal to generate an output optical measurement signal. ... Finisar Corporation

Swdm osas

In an example embodiment, an n-channel wdm osa includes active optical devices coupled to a carrier, an optical block, and a mux or a demux. The optical block may be positioned above the active optical devices and coupled to the carrier. ... Finisar Corporation

Multi-rate clock buffer

A system may include a driver circuit configured to receive a clock signal. The system may also include a first tuned circuit and a second tuned circuit. ... Finisar Corporation

Latch for communication module

A communication module includes a printed circuit board, a housing including a left and right sidewall, a top and bottom panel, and a catch pin extending from the bottom panel, the housing enclosing the circuit board and configured to be inserted into and removed from the host device, and a delatch assembly slidably engaged with the bottom panel of the housing, including first and second delatch arms extending underneath the bottom panel of the housing and configured to removably engage with the host device, and a delatch cross-member extending underneath the bottom panel of the housing, including a hooking member configured to selectively engage the catch pin as the delatch assembly slides along the housing.. . ... Finisar Corporation

Surface coupled laser and laser optical interposer

An example system includes a grating coupled laser, a laser optical interposer (loi), an optical isolator, and a light redirector. The grating coupled laser includes a laser cavity and a transmit grating optically coupled to the laser cavity. ... Finisar Corporation

Optical coupling assemblies

An optical coupling assembly includes optical fibers and a fiber coupling structure assembly that includes an active optical component (aoc) array. The aoc array includes wafer material, aocs, and soldering pads. ... Finisar Corporation

Phase-transforming optical reflector formed by partial etching or by partial etching with reflow

A reflective optical element includes a reflective surface comprising a multitude of discrete recessed and non-recessed areas arranged along the reflective surface. The discrete areas are arranged to approximate a desired phase function (typically modulo 2π) and are smaller than an operational wavelength in order to provide a range of phase delays needed to adequately approximate the desired phase function. ... Finisar Corporation

Interconnect structure for coupling an electronic unit and an optical unit, and optoelectronic module

An optoelectronic module is provide and includes an electronic unit, an optical unit, and an interconnect structure. The electronic unit is capable of outputting and/or receiving electric signals, while the optical unit is capable of converting the electric signals into optical signals. ... Finisar Corporation

Thermal management structures for optoelectronic modules

An example embodiment includes optoelectronic module. The optoelectronic module may include a lens assembly, a module board, heat-generating components, and a thermally conductive plate. ... Finisar Corporation

Light-weight on-chip signal monitor with integrated memory management and data collection

Embodiments of a device and method to automatically acquire signal quality metrics in a digital communication system are disclosed. The device may include acquisition means to sample the likelihood of a digital communication signal passing through a grid of time and amplitude regions, and storage means by which such likelihood measurements may be accumulated in a computer memory array for analysis. ... Finisar Corporation

Component alignment

A system may include a substrate and a lens component. The substrate may include pads and solder protuberances. ... Finisar Corporation

Bi-directional propagation in optical communication

Various embodiments relate to bi-directional optical communication. An optical system may include a first transceiver module including at least one transmitter and at least one receiver, wherein each transmitter of the at least one transmitter is configured to transmit a first signal via an optical fiber and at a wavelength. ... Finisar Corporation

04/05/18 / #20180097569

Individual dc and ac current shunting in optical receivers

A circuit may include amplifier circuitry configured to receive a current signal at an amplifier input node, convert the current signal to a voltage signal, and output the voltage signal at an amplifier output node. The circuit may also include overload circuitry configured to receive a replica dc input voltage and a replica dc output voltage. ... Finisar Corporation

03/29/18 / #20180090909

Implant regrowth vcsel and vcsel array with heterogeneous combination of different vcsel types

A non-planarized vcsel can include: a blocking region over or under an active region, the blocking region having a first thickness; one or more conductive channel cores in the blocking region, the one or more conductive channel cores having a second thickness that is larger than the first thickness, wherein the blocking region is defined by having an implant and the one or more conductive channel cores are devoid of the implant, wherein the blocking region is lateral the one or more conductive channel cores, the blocking region and one or more conductive channel cores being an isolation region; and a non-planarized semiconductor region of one or more non-planarized semiconductor layers over the isolation region. The vcsel can include a planarized bottom mirror region below the active region and a non-planarized top mirror region above the isolation region, or a non-planarized bottom mirror region below the active region.. ... Finisar Corporation

03/29/18 / #20180089966

Communication devices including an illumination source and a physical input sensor

Communication devices are disclosed. In an example embodiment, a communication device may include a communication module including an illumination source and a body element. ... Finisar Corporation

03/15/18 / #20180076800

Cross-point offset adjustment circuit

A differential signal offset adjustment circuit may include a first circuit for receiving a first one of a differential input signal and generating a first one of a differential output signal with positive offset based on a differential offset signal. The circuit may further include a second circuit for receiving a second one of a differential input signal and generating a second one of a differential output signal with a negative offset based on the differential offset signal.. ... Finisar Corporation

03/01/18 / #20180062825

Bi-directional transceiver with time synchronization

A system or a network may include an optoelectronic module that includes an optical transmitter optically coupled with an optical fiber, and a controller communicatively coupled to the optical transmitter. The controller may be configured to operate the optical transmitter to transmit data signals through the optical fiber. ... Finisar Corporation

02/22/18 / #20180054898

Rigid-flexible circuit interconnects

In an example embodiment, a circuit interconnect includes a first printed circuit board (pcb), a second pcb, a spacer, and an electrically conductive solder joint. The first pcb includes a first electrically conductive pad. ... Finisar Corporation

02/08/18 / #20180041283

Signaling on a high-speed data connector

An apparatus and method for signaling and transmitting data through an optical link is described. The apparatus may include a connector including a first plurality of contacts compatible with an enhanced sfp (sfp+) connector. ... Finisar Corporation

02/08/18 / #20180041009

Etched planarized vcsel

An etched planarized vcsel includes: an active region; a blocking region over the active region, and defining apertures therein; and conductive channel cores in the apertures, wherein the conductive channel cores and blocking region form an isolation region. A method of making the vcsel includes: forming the active region; forming the blocking region over the active region; etching the apertures in the blocking region; and forming the conductive channel cores in the apertures of the blocking region. ... Finisar Corporation

02/01/18 / #20180035181

Local buffers in a liquid crystal on silicon chip

An example embodiment includes a liquid crystal on silicon (lcos) system. The lcos system includes multiple pixels, a pixel voltage supply source (voltage source), an external buffer, and a local buffer. ... Finisar Corporation

01/25/18 / #20180026717

Loss of signal detector

A loss of signal (los) detector may include a comparator including a first input, a second input and an output indicating a los status. The los detector further includes circuitry to compare a first signal on the first input generated by differential input signals and a threshold signal common mode with a second signal on the second input generated by differential threshold signals at a first level and an input signal common mode. ... Finisar Corporation

01/11/18 / #20180011267

Chip on leadframe optical subassembly

One example embodiment includes an optical subassembly (osa). The osa includes a leadframe circuit, an optical port, and an active optical component subassembly. ... Finisar Corporation

12/21/17 / #20170366375

Nonlinear equalizer

An equalizer and method is implemented to improve the performance of a communication system based on multi-level amplitude modulation schemes. The equalizer may include a linear equalization circuit including a plurality of time delayed taps and configured to receive an input signal and generate an output signal. ... Finisar Corporation

12/21/17 / #20170366266

Transceiver to transceiver digital optical commands

A system may include a first module at a far end, and an optical fiber coupled to the first module. The system may also include a second module at a near end that is configured to generate and transmit instructions to the first module to control operation of the first module.. ... Finisar Corporation

12/21/17 / #20170363808

Two-stage adiabatically coupled photonic systems

In an example, a photonic system includes a si pic with a si substrate, a sio2 box formed on the si substrate, a first layer, and a second layer. The first layer is formed above the sio2 box and includes a sin waveguide with a coupler portion at a first end and a tapered end opposite the first end. ... Finisar Corporation

12/07/17 / #20170354026

Flex-less multilayer ceramic substrate

In one example embodiment, an optoelectronic assembly includes a multilayer ceramic substrate that includes multiple ceramic layers and a via disposed through at least one of the ceramic layers. The via may be formed from a conductive material that is configured to communicate a signal through the via. ... Finisar Corporation

12/07/17 / #20170351044

Optical communication modules

An optical assembly may include a platform disposed within a housing that has a limited space. The platform may be tilted by a first angle to fit a fiber array into the limited space of the housing. ... Finisar Corporation

11/30/17 / #20170346554

Optoelectronic module management platform

An optoelectronic module management system includes a network connection communicatively coupled to an optoelectronic module, a memory, and a processing device operatively coupled to the memory. The processing device is configured to perform or control performance of operations that include identify the optoelectronic module via a management network. ... Finisar Corporation

11/30/17 / #20170343740

Duplex mini lc connector

A fiber optic connector may include a body, a first fiber ferrule, and a second fiber ferrule. The first fiber ferrule may extend in a length direction of the body from a module-side end of the body. ... Finisar Corporation

11/23/17 / #20170338894

Track and hold amplifiers

An embodiment includes a track and hold amplifier device. A device may include an emitter follower transistor coupled to each of an input and an output. ... Finisar Corporation

11/23/17 / #20170338832

Analog-to-digital converters

An embodiment includes an analog-to-digital converter device. A device may include a first track and hold amplifier configured to receive an analog input signal. ... Finisar Corporation

11/16/17 / #20170329081

Adiabatically coupled optical system

An optical system includes a silicon (si) substrate, a buried oxide (box) layer formed on the substrate, a silicon nitride (sin) layer formed above the box layer, and a sin waveguide formed in the sin layer. In some embodiments, the optical system may additionally include an interposer waveguide adiabatically coupled to the sin waveguide to form a sin-interposer adiabatic coupler that includes at least the tapered section of the sin waveguide, the optical system further including at least one of: a cavity formed in the si substrate at least beneath the sin-interposer adiabatic coupler or an oxide overlay formed between a top of a sin core of the sin waveguide and a bottom of the interposer waveguide. ... Finisar Corporation

11/09/17 / #20170322423

Wavelength division multiplexing of uncooled lasers with wavelength-common dispersive element

An example demultiplexer may include at least one dispersive element that is common to multiple wavelength channels. The demultiplexer may additionally include multiple field lenses positioned optically downstream from the at least one dispersive element, where a number of the field lenses is equal to a number of the wavelength channels. ... Finisar Corporation

10/26/17 / #20170307835

Method to bond two surfaces with precured epoxy and optical subassembly including the same

In an example, a method may include dispensing a portion of epoxy on a first surface. The method may also include curing the portion of epoxy to form precured epoxy. ... Finisar Corporation

10/05/17 / #20170288779

Host-equalized optical links

An embodiment includes a host-equalized optical transceiver. The host-equalized optical transceiver includes a driver analog interface, a linear laser diode driver (lldd), and an optical transmitter. ... Finisar Corporation

09/28/17 / #20170279595

Clock recovery and equalizer estimation in a multi-channel receiver

A multi-channel receiver that includes a first clock recovery unit configured to recover a first clock signal associated with a first optical channel is disclosed. A first coefficient estimation unit estimates a first set of coefficients using the first clock signal. ... Finisar Corporation

09/28/17 / #20170279554

Bidirectional communication module

In an example, a communication module includes an optical transmitter, an optical receiver, and a periodical filter. The optical transmitter is configured to emit an outbound optical signal. ... Finisar Corporation

09/28/17 / #20170276876

Optical circulators integrated into transceivers

An optical circulator integrated into a transceiver for bi-directional communication may include a core configured to pass a transmission signal in a transmit direction and a received signal in a receive direction. The optical circulator may include an input port optically coupled to the core. ... Finisar Corporation

09/14/17 / #20170264077

Apparatus for damping and monitoring emissions from light emitting devices

The present invention relates to an apparatus for damping arid monitoring emissions from a light emitting device, particularly a vertical cavity surface emitting laser (vcsel), comprising: a semi transparent substrate, preferably glass; a light emitting device for generating light emission; a damping layer deposited on a surface of the substrate; and a pair of electrodes, each of which being in direct contact with the damping layer. The damping layer is adapted to decrease the power level of the light emission of the light emitting device by absorption, to a desired level, for instance, to a level that meets eye safety limits. ... Finisar Corporation

09/14/17 / #20170261711

Thermal interface

A thermal interface may include a thermally conductive cap. The thermally conductive cap may include a base, a finger, and an extension. ... Finisar Corporation

09/14/17 / #20170261694

Dispersion-compensative optical assembly

An optical assembly includes a first grating device configured to: receive a light beam that includes an optical signal with a particular wavelength from a fiber; and change a propagation direction of the optical signal according to the particular wavelength of the optical signal. The optical assembly also includes a second grating device configured to: receive the optical signal outputted from the first grating device; change the propagation direction of the optical signal according to the particular wavelength of the optical signal; and direct the optical signal onto a grating coupler. ... Finisar Corporation

09/07/17 / #20170256912

Distributed reflector laser

A distributed reflector (dr) laser may include a distributed feedback (dfb) region and a distributed bragg reflector (dbr). The dfb region may have a length in a range from 30 micrometers (μm) to 100 μm and may include a dfb grating with a first kappa in a range from 100 cm−1 to 150 cm−1. ... Finisar Corporation

08/17/17 / #20170237496

Optically enabled multi-chip modules

An optically enabled multi-chip module has an optical engine transceiver and a host system chip. The optical engine transceiver has an optical engine front-end and an optical engine macro. ... Finisar Corporation

08/03/17 / #20170222725

Method and apparatus for characterization and compensation of optical impairments in inp-based optical transmitter

A method and apparatus for characterizing and compensating optical impairments in an optical transmitter includes operating an optical transmitter comprising a first and second parent mz, each comprising a plurality of child mz modulators that are biased at respective initial operating points. An electro-optic rf transfer function is generated for each of the plurality of child mz modulators. ... Finisar Corporation

07/27/17 / #20170214482

Polarization diverse wavelength selective switch

Described herein is a wavelength selective switch (wss) type optical switching device (1) configured for switching input optical beams from input optical fiber ports (3, 5 and 7) to an output optical fiber port (9). Device (1) includes a wavelength dispersive grism element (13) for spatially dispersing the individual wavelength channels from an input optical beam in the direction of a second axis (y-axis). ... Finisar Corporation

07/13/17 / #20170199340

Cable connector

An embodiment includes a cable connector that includes a connector housing, a fiber support structure, and a latch structure. The connector housing defines a housing cavity. ... Finisar Corporation

07/06/17 / #20170192188

Cable connector retention design

An example embodiment includes a pluggable active optical cable connector configured to permanently maintain engagement of an optical interface included in an optoelectronic module. The pluggable active optic cable connector includes a lens connection section which connects a plurality of optical fibers to the optical interface, a latching portion which engages with a latch receiving portion of the optoelectronic module, the latching portion including a first engagement portion which engages with an optoelectronic engagement portion of the optical interface and a second engagement portion, and a locking portion which engages with the second engagement portion of the latching portion and locks the lens connection section in place with respect to the optoelectronic module as a plug insertion force is applied to the pluggable active optical cable connector so as to prevent the lens connection section from disengaging from the optical interface of the optoelectronic module.. ... Finisar Corporation

06/22/17 / #20170179680

Surface coupled systems

A system includes a surface coupled edge emitting laser that includes a core waveguide, a fan out region optically coupled to the core waveguide in a same layer of the surface coupled edge emitting laser as the core waveguide; and a first surface grating formed in the fan out region; and a photonic integrated circuit (pic) that includes an optical waveguide and a second surface grating formed in an upper layer of the pic, wherein the second surface grating is in optical alignment with the first surface grating.. . ... Finisar Corporation

06/22/17 / #20170179627

High-speed data connector

A transceiver connector may include a bottomside connector. The bottomside connector may include a first ground pin adjacent to an edge of the bottomside connector, a first high-speed differential input pin adjacent to the first ground pin, a second high-speed differential input pin adjacent to the first high-speed differential input pin, a second ground pin adjacent to the second high-speed differential input pin, a serial interface data line pin adjacent to the second ground pin, a serial interface clock pin adjacent to the serial interface data line pin, a third ground pin adjacent to the serial interface clock pin, a first high-speed differential output pin adjacent to the third ground pin, a second high-speed differential output pin adjacent to the first high-speed differential output pin, and a fourth ground pin adjacent to the second high-speed differential output pin.. ... Finisar Corporation

06/22/17 / #20170176700

Multichannel rf feedthroughs

Multichannel rf feedthroughs. In some examples, a multichannel rf feedthrough includes an internal portion and an external portion. ... Finisar Corporation

06/22/17 / #20170176686

Wafer assembly including a guide pin wafer

A guide pin wafer may include a base wafer that includes multiple dies. Each die may include a corresponding lens cutout. ... Finisar Corporation

06/15/17 / #20170168237

Polarization independent multiplexer / demultiplexer

An integrated optical component includes at least one input waveguide, at least one output waveguide; a first slab waveguide having a first refractive index, n1. The first slab waveguide may be disposed between at least one of the input waveguides and at least one of the output waveguides. ... Finisar Corporation

06/15/17 / #20170168202

Partially etched phase-transforming optical element

A optical element (transmissive or reflective) includes a transmissive layer comprising two different optical media arranged among discrete volumes arranged along the layer. The discrete volumes are arranged to approximate a desired phase function (typically modulo 2π) and are smaller than an operational wavelength in order to provide a range of phase delays needed to adequately approximate the desired phase function.. ... Finisar Corporation

06/08/17 / #20170163346

Method of monitoring an optoelectronic transceiver with multiple flag values for a respective operating condition

An optoelectronic transceiver includes an optoelectronic transmitter, an optoelectronic receiver, memory, and an interface. The memory is configured to store digital values representative of operating conditions of the optoelectronic transceiver. ... Finisar Corporation

06/01/17 / #20170155464

Optical wavelength automatic adaptation of transceivers

In some aspects, an example method may include receiving, at a receiver of a first optoelectronic module, a loss of signal indicator from a second optoelectronic module that is remote from the first optoelectronic module. The method may include iteratively cycling through transmission of optical signals on a plurality of wavelength channels to the second optoelectronic module until the loss of signal indicator terminates in response to receiving the loss of signal indicator. ... Finisar Corporation

05/11/17 / #20170131493

Latch mechanism for communication module

Some embodiments include a latch mechanism and an optoelectronic module that includes the latch mechanism. The latch mechanism may include a driver, a follower, a pivot member, and a cam member. ... Finisar Corporation

04/06/17 / #20170097484

Strategic placement of plastic structures for emi management of transceiver module

. . An example optoelectronic module includes a housing that extends between a first end portion and a second end portion. The optoelectronic module includes a printed circuit board (“pcb”) that includes an electrical connector at the second end portion of the housing, at least one transmitter electrically coupled to the pcb and optically coupled with at least one optical fiber, at least one receiver electrically coupled to the pcb and optically coupled with at least one optical fiber, and at least one electromagnetic interference (“emi”) attenuating component formed of a plastic material that is configured to attenuate emi. ... Finisar Corporation

03/23/17 / #20170082803

Wavelength division multiplexing

A system may include a first light source configured to generate a first beam of light at a first wavelength; a second light source configured to generate a second beam of light at a second wavelength; a third light source configured to generate a third beam of light at a third wavelength; and a fourth light source configured to generate a fourth beam of light at a fourth wavelength. The system may also include a thin-film filter, a first polarization beam splitter (pbs), a wave plate and a second pbs. ... Finisar Corporation

03/16/17 / #20170075075

A calibration system for a wavelength selective switch

Described herein is a calibration system (25) for a wavelength selective switch (1). The switch (1) is adapted for dynamically switching optical beams (5, 7) along respective trajectories between input and output ports disposed in an array (3) using a reconfigurable liquid crystal on silicon (lcos) spatial light modulator device (17). ... Finisar Corporation

02/23/17 / #20170052317

Two-stage adiabatically coupled photonic systems

In an example, a coupled system includes a first waveguide, at least one second waveguide, and an interposer. The first waveguide has a silicon (si) core having first refractive index n1 and a tapered end. ... Finisar Corporation

02/16/17 / #20170048015

Swdm osas

In an example embodiment, an n-channel wdm osa includes active optical devices coupled to a carrier, an optical block, and a mux or a demux. The optical block may be positioned above the active optical devices and coupled to the carrier. ... Finisar Corporation

02/16/17 / #20170048000

Out-of-band signal detection

An out-of-band (oob) signal detector is disclosed. The oob signal detector may include a first node configured to receive an alternating current (ac) portion and a direct current (dc) portion of an electrical signal. ... Finisar Corporation

02/16/17 / #20170047708

Wavefunction deconfinement electro-absorption modulator

A method of modulating a laser device having an integrated modulator can include: emitting laser light from a primary laser cavity having quantum wells; passing the laser light through a modulator cavity having at least one modulator quantum well that is coupled with the primary laser cavity and integrated with the laser device; and biasing the modulator cavity so as to deconfine electron and/or hole wavefunctions in the at least one modulator quantum well of the modulator cavity such that the refractive index and absorption of the modulator cavity changes to modulate the laser light passing through the modulator. The method can include at least partially containing the deconfined electron and/or hole wavefunctions in a secondary modulator well region adjacent to a primary modulator well region, the primary modulator well region containing the at least one modulator quantum well.. ... Finisar Corporation

02/02/17 / #20170034951

Screwless heat sink attachment

An optoelectronic system includes an optoelectronic module and a heat sink. The optoelectronic module includes a housing and first and second housing slide locks. ... Finisar Corporation

02/02/17 / #20170033873

Polarization demultiplexing of optical signals

An example embodiment includes optical receiver that includes a polarization beam splitter (pbs), a polarization controller, and a forward error correction (fec). The pbs is configured to split a received optical signal having an unknown polarization state into two orthogonal polarizations (x′-polarization and y′-polarization). ... Finisar Corporation

02/02/17 / #20170033795

Driver circuit

A circuit may include first and second input nodes, first and second output nodes, first and second intermediate nodes, first and second resistances, a first amplification transistor coupled to the first input node, the first resistance, and the first intermediate node and a second amplification transistor coupled to the second input node, the second resistance, and the second intermediate node. The circuit may also include a first active device coupled to the first output node and the first intermediate node, a second active device coupled to the second output node and the second intermediate node, a first output transistor coupled to the first output node and configured to conduct based on a second intermediate signal on the second intermediate node, and a second output transistor coupled to the second output node and configured to conduct based on a first intermediate signal on the first intermediate node.. ... Finisar Corporation

01/26/17 / #20170026115

Detecting presence of active optical cables in peripheral component interconnect-express links

A peripheral component interconnect-express (pcie) link with presence of an active optical cable (aoc) that couples between an electrical pcie (e-pcie) transmitter and an e-pcie receiver may include the aoc. The aoc may include an electrical-to-optical pcie (eo-pcie) transceiver coupled to the e-pcie transmitter. ... Finisar Corporation

01/26/17 / #20170023749

Component alignment

A system may include a substrate and a lens component. The substrate may include pads and solder protuberances. ... Finisar Corporation

01/19/17 / #20170017038

Multiplexer/demultiplexer based on diffraction and reflection

Transmissive diffraction grating(s), reflector(s), and multiple optical sources/receivers are arranged such that each one of multiple optical signals at corresponding different wavelengths co-propagating along a multiplexed beam path would: (i) be transmissively, dispersively diffracted at a multiplexed transmission region of a grating; (ii) propagate between the multiplexed transmission region and multiple demultiplexed transmission regions of a grating undergoing reflection(s) from the reflector(s); (iii) be transmissively, dispersively diffracted at the demultiplexed transmission regions; and (iv) propagate between the demultiplexed transmission regions and the sources/receivers along multiple demultiplexed beam paths.. . ... Finisar Corporation

01/05/17 / #20170005587

Differential amplitude detector

An example embodiment includes an idle state detection circuit. The idle state detection circuit includes a bias current loop, a rectifying circuit loop, a voltage translating loop, and a filter circuit. ... Finisar Corporation








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