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Lumentum Operations Llc patents


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

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "L" | Lumentum Operations Llc-related inventors


Modulator with signal electrode enclosed by ground electrode

A modulator may include a substrate. The modulator may include one or more waveguides formed upon or formed in the substrate. ... Lumentum Operations Llc

Zoned optical waveplate

A zoned waveplate has a series of transversely stacked birefringent zones alternating with non-birefringent zones. The birefringent and non-birefringent zones are integrally formed upon an ar-coated face of a single substrate by patterning the ar coated face of the substrate with zero-order sub-wavelength form-birefringent gratings configured to have a target retardance. ... Lumentum Operations Llc

Variable optical retarder

A sub-wavelength grating is placed inside a liquid crystal variable optical retarder to reduce polarization dependence of the optical retardation generated by the variable optical retarder. A small thickness of the sub-wavelength grating, as compared to a conventional waveplate, reduces the driving voltage penalty due to the in-cell placement of the sub-wavelength grating.. ... Lumentum Operations Llc

Machining processes using a random trigger feature for an ultrashort pulse laser

A machining process, associated with a workpiece, may include controlling, by a control device, a pulse repetition frequency (prf) of an ultrashort pulse laser. The prf may be controlled to maintain a substantially constant distance, on the workpiece, between adjacent pulses on a path. ... Lumentum Operations Llc

Optical modulator

An optical modulator may include at least one ground electrode. The optical modulator may include at least one signal electrode parallel to the at least one ground electrode. ... Lumentum Operations Llc

Reflector and a laser diode assembly using same

A laser diode assembly is disclosed, in which a transmissive reflector is used to redirect the laser beam upwards or to turn or rotate the laser beam. The reflector has at least one brewster transmissive surface and at least one total internal reflection surface. ... Lumentum Operations Llc

Rotary optical beam generator

An optical fiber device may include a unitary core including a primary section and a secondary section, wherein at least a portion of the secondary section is offset from a center of the unitary core, wherein the unitary core twists about an optical axis of the optical fiber device along a length of the optical fiber device, and wherein a refractive index of the primary section is greater than a refractive index of the secondary section; and a cladding surrounding the unitary core.. . ... Lumentum Operations Llc

Multi-laser package using shared optics

An optical device may include a semiconductor laser chip to independently generate four laser beams at different wavelengths. Each laser beam, of the four laser beams, may be directed to a respective optical output of the optical device with a sub-micron level of tolerance of each laser beam relative to the respective optical outputs of the optical device, and each laser beam, of the four laser beams, may be associated with a different optical path from the semiconductor laser chip to the respective optical output of the optical device. ... Lumentum Operations Llc

Programmable multicast switch

A programmable multicast switch may include a first set of optical ports and a second set of optical ports. The programmable multicast switch may include a plurality of groups of optical devices optically connected in a cascading arrangement. ... Lumentum Operations Llc

Coefficient of thermal expansion (cte) matched transistor outline (to) header

A transistor outline (to) package may include a to cap. The to package may include a to header. ... Lumentum Operations Llc

Dual polarization arrayed waveguide grating

A 1×n demultiplexer may include an input slab to distribute an input beam, including one or more wavelengths of light, among waveguides of a waveguide array. The wavelengths of light may comprise te polarized light and tm polarized light. ... Lumentum Operations Llc

Thin film total internal reflection diffraction grating for single polarization or dual polarization

A diffraction grating may include a substrate. The diffraction grating may include an etch stop layer to prevent etching of the substrate. ... Lumentum Operations Llc

Second harmonic generation

A second harmonic generator may include a combiner to combine a fundamental optical beam with a residual fundamental optical beam. The second harmonic generator may include a second harmonic crystal, coupled to the combiner, to generate a second harmonic optical beam from the fundamental optical beam and the residual fundamental optical beam. ... Lumentum Operations Llc

Cladding light stripper

A cladding light stripper may include a double-clad optical fiber having a core for guiding signal light, an inner cladding surrounding the core, and an outer cladding surrounding the inner cladding. The optical fiber may include a stripped portion forming an exposed section. ... Lumentum Operations Llc

12/07/17 / #20170353012

Variable emission area design for a vertical-cavity surface-emitting laser array

A vertical cavity surface emitting laser (vcsel) array may include a plurality of vcsels. A size of an emission area of a first vcsel, of the plurality of vcsels, may be different from a size of an emission area of a second vcsel of the plurality of vcsels. ... Lumentum Operations Llc

10/26/17 / #20170310086

Compact emitter design for a vertical-cavity surface-emitting laser

A surface emitting laser may include an isolation layer including a first center portion and a first plurality of outer portions extending from the first center portion, and a metal layer including a second center portion and a second plurality of outer portions extending from the second center portion. The metal layer may be formed on the isolation layer such that a first outer portion, of the second plurality of outer portions, is formed over one of the first plurality of outer portions. ... Lumentum Operations Llc

10/26/17 / #20170307785

Zoned optical waveplate

A zoned waveplate has a series of transversely stacked birefringent zones alternating with non-birefringent zones. The birefringent and non-birefringent zones are integrally formed upon an ar-coated face of a single substrate by patterning the ar coated face of the substrate with zero-order sub-wavelength form-birefringent gratings configured to have a target retardance. ... Lumentum Operations Llc

10/26/17 / #20170304942

Direct diode laser processing apparatus and output monitoring method therfof

A direct diode laser processing apparatus includes a laser oscillator including a plurality of laser diodes and emitting a multiple-wavelength laser beam, a transmission fiber transmitting the multiple-wavelength laser beam emitted from the laser oscillator, a laser processing machine collecting the multiple-wavelength laser beam transmitted through the transmission fiber and processes a workpiece, a detecting mechanism sampling part of the multiple-wavelength laser beam and detecting wavelength-by-wavelength light intensities of the sampled laser beam, a monitoring unit monitoring an output decrease in the multiple-wavelength laser beam according to a change in the wavelength-by-wavelength light intensities, and a control module controlling outputs of the plurality of laser diodes according to a monitored result from the monitoring unit. The apparatus properly monitors an output decrease in the multiple-wavelength laser beam.. ... Lumentum Operations Llc

10/12/17 / #20170293094

Optical transmitter assembly for vertical coupling

The invention relates to an optical transmitter assembly (ota) for vertical coupling of light into a chip, and to a method for manufacturing the ota. The ota includes a laser diode, a microlens and a turning mirror mounted at a top face of a supporting substrate within a sealed enclosure, and an optical component, such as an optical isolator, a polarizer, or a microlens disposed in a substrate cavity that opens to the back face of the substrate. ... Lumentum Operations Llc

09/28/17 / #20170279245

Semiconductor laser oscillator

A semiconductor laser oscillator includes a diode unit configured from a plurality of banks, in which one bank is configured from a plurality of laser diodes connected in series. The diode unit includes a wavelength locking mechanism for locking to a plurality of wavelengths. ... Lumentum Operations Llc

09/28/17 / #20170276875

Angled periodic segmented waveguide for spot size conversion with reduced return loss

A spot size converter may include a tapered periodic segmented waveguide (psw). The tapered psw may include a plurality of waveguide segments defined by a plurality of gaps between the plurality of waveguide segments. ... Lumentum Operations Llc

09/21/17 / #20170269301

Angled periodic segmented waveguide for spot size conversion with reduced return loss

A spot size converter may include a tapered periodic segmented waveguide (psw). The tapered psw may include a plurality of waveguide segments defined by a plurality of gaps between the plurality of waveguide segments. ... Lumentum Operations Llc

09/14/17 / #20170259527

Assembly of components having different coefficients of thermal expansion

A component assembly includes a first component, such as an optical component, and a second component, such as a support component, having different coefficients of thermal expansion (ctes). The component assembly also includes a spacer having a cte matched to that of the first component, disposed between the first component and the second component. ... Lumentum Operations Llc

08/24/17 / #20170244219

Compact emitter design for a vertical-cavity surface-emitting laser

A surface emitting laser may include an isolation layer including a first center portion and a first plurality of outer portions extending from the first center portion, and a metal layer including a second center portion and a second plurality of outer portions extending from the second center portion. The metal layer may be formed on the isolation layer such that a first outer portion, of the second plurality of outer portions, is formed over one of the first plurality of outer portions. ... Lumentum Operations Llc

08/17/17 / #20170235048

Semiconductor optical waveguide device

A semiconductor waveguide optical device and a method of manufacturing of a semiconductor optical device are disclosed. The semiconductor waveguide optical device may include a gradient index waveguide for mode conversion and/or vertical translation of optical modes of step-index waveguides, which may be disposed on or over a same substrate as the gradient index waveguide. ... Lumentum Operations Llc

08/03/17 / #20170222395

Fiber coupled laser source pump with wavelength division multiplexer

A pump laser package may include an input fiber to send signal light on a first optical path. A first lens may be arranged on the first optical path. ... Lumentum Operations Llc

08/03/17 / #20170219912

Cascaded optical harmonic generation

A cascaded harmonic generator, for cascaded optical harmonic generation from an optical beam provided by a laser source, may include a second harmonic generator to generate a second harmonic optical beam based on a residual beam associated with the optical beam. The cascaded harmonic generator may include a third harmonic generator to generate a third harmonic optical beam based on the second harmonic optical beam and the optical beam. ... Lumentum Operations Llc

07/27/17 / #20170212403

Optical modulator

An optical modulator is disclosed, in which a mmi couplers are used for input signal splitting for branching into individual mach-zehnder interferometers, as well as for branching and combining from individual mach-zehnder waveguides. Mmi couplers, splitters, and combiners may be cascaded and combined with single-mode y-splitters and combiners to provide modulators of various types, including dual polarization, quadrature phase mach-zehnder interferometer base optical modulators.. ... Lumentum Operations Llc

07/13/17 / #20170199374

Diffractive mems device

A diffractive mems device has an in-plane binary reflective diffraction pattern formed in an outer surface of a tillable platform. The binary reflective diffraction pattern includes rectangular or trapezoidal ridges and valleys, or grooves, of a same depth. ... Lumentum Operations Llc

07/06/17 / #20170194759

Gain control for arbitrary triggering of short pulse lasers

A device may include a transient optical amplifier having stored energy associated with a lower boundary and an upper boundary of a dynamic equilibrium, and a target level defining stored energy for amplifying a high energy input pulse to a higher energy output pulse. The device may include a pump to increase the amplifier's stored energy, and a source to pass low energy control pulses or the high energy input pulse to the amplifier. ... Lumentum Operations Llc

06/15/17 / #20170168339

Reflective lc devices including thin film metal grating

A sub-wavelength thin-film metal grating is placed inside a liquid crystal variable optical retarder at a selected distance from a reflective electrode to form a reflective half wave plate, thereby reducing polarization dependence of the optical retardation generated by the variable optical retarder. The approach enables to form within the device the reflective half wave plate that is suitably thin without modifying the reflective electrode of the device.. ... Lumentum Operations Llc

06/15/17 / #20170168241

Flat-top tunable filter

A tunable plc optical filter having sequentially connected thermally tunable mach-zehnder (mz) interferometers is described. The cascade of mz interferometers, each having a free spectral ranges matching itu frequency grid spacing, are tuned so as to have a common passband centered on the frequency of the signal being selected, while having at least one of the stopbands centered on any other itu frequency. ... Lumentum Operations Llc

05/11/17 / #20170131616

Method and controller for operating a variable optical retarder and an array

A method and a controller for operating an array of variable optical retarders are disclosed. Neighboring pixels of the array of variable optical retarders are driven with disordered temporal bit sequences. ... Lumentum Operations Llc

05/04/17 / #20170123161

Cross-connect switch using 1d arrays of beam steering elements

An optical cross-connect including two deflector arrays optically separated by an angle-to-offset (ato) element, wherein each deflector array includes a plurality of deflectors aligned in an array direction, each deflector array having a switching direction substantially perpendicular to the corresponding array direction, the array direction of the two deflector arrays being substantially perpendicular. Beam shaping optics convert light transmitted towards the first deflector array to have an elliptical cross-section at the first deflector array, thus providing a relatively simple and compact optical cross-connect.. ... Lumentum Operations Llc

04/20/17 / #20170110845

Cladding light stripper and method of manufacturing

A cladding stripper includes a plurality of transversal notches or grooves in the outer surface of an exposed inner cladding of a double clad optical fiber. Position and orientation of the notches can be selected to even out cladding light release along the cladding light stripper, enabling more even temperature distributions due to released cladding light. ... Lumentum Operations Llc

04/06/17 / #20170099531

Free-space multicast switch with elliptical beams

A free-space mcs may include an input port to launch a beam of light, n output ports, a beam splitter to split the beam of light into n portions, and a deflector array including n deflectors aligned in an array direction. Each deflector may have an active region with a size in the array direction that matches a size in the array direction of a portion, of the n portions, incident thereon. ... Lumentum Operations Llc

03/30/17 / #20170093125

Bidirectional long cavity semiconductor laser for improved power and efficiency

The invention relates to bi-directional long-cavity semiconductor lasers for high power applications having two ar coated facets (2ar) to provide an un-folded cavity with enhanced output power. The lasers exhibit more uniform photon and carrier density distributions along the cavity than conventional uni-directional high-power lasers, enabling longer lasers with greater output power and lasing efficiency due to reduced longitudinal hole burning. ... Lumentum Operations Llc

03/16/17 / #20170078040

Use of wavelength selective switch for a few-mode fiber

A wavelength selective switch (wss) may include a front-end unit that includes an input few-mode fiber (fmf) providing an input optical signal including multiple wavelengths. The multiple wavelengths may each have n modes. ... Lumentum Operations Llc

03/16/17 / #20170075083

Sliding thermal contact for pluggable optic modules

Present thermal solutions to conduct heat from pluggable optical modules into heat sinks use a metal heat sink attached with a spring clip. The interface between the pluggable module and the heat sink is simple metal-on-metal contact, which is inherently a poor thermal interface and limits heat dissipation from the optical module. ... Lumentum Operations Llc

03/02/17 / #20170063468

Wavelength locking and multiplexing of high-power semiconductor lasers

The invention relates to wavelength stabilization and wavelength multiplexing of multiple high-power multi-mode semiconductor lasers. The lasers are wavelength-stabilized in free space using multi-peak output reflectors to wavelength-lock their output at different reflection wavelength in dependence on operating conditions, to reduce output reflectivity required for locking and increase output power. ... Lumentum Operations Llc

02/02/17 / #20170031098

Semiconductor optical waveguide device

A semiconductor waveguide optical device and a method of manufacturing of a semiconductor optical device are disclosed. The semiconductor waveguide optical device may include a gradient index waveguide for mode conversion and/or vertical translation of optical modes of step-index waveguides, which may be disposed on or over a same substrate as the gradient index waveguide. ... Lumentum Operations Llc

01/19/17 / #20170017050

Optical transmitter assembly for vertical coupling

The invention relates to an optical transmitter assembly (ota) for vertical coupling of light into a chip, and to a method for manufacturing the ota. The ota includes a laser diode, a microlens and a turning mirror mounted at a top face of a supporting substrate within a sealed enclosure, and an optical component, such as an optical isolator, a polarizer, or a microlens disposed in a substrate cavity that opens to the back face of the substrate. ... Lumentum Operations Llc

01/19/17 / #20170017028

Zoned optical waveplate

A zoned waveplate has a series of transversely stacked birefringent zones alternating with non-birefringent zones. The birefringent and non-birefringent zones are integrally formed upon an ar-coated face of a single substrate by patterning the ar coated face of the substrate with zero-order sub-wavelength form-birefringent gratings configured to have a target retardance. ... Lumentum Operations Llc








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