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Rockley Photonics Limited patents


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

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "R" | Rockley Photonics Limited-related inventors


Optoelectronic device

An optoelectronic device and method of making the same. The device comprising: a substrate; an epitaxial crystalline cladding layer, on top of the substrate; and an optically active region, above the epitaxial crystalline cladding layer; wherein the epitaxial crystalline cladding layer has a refractive index which is less than a refractive index of the optically active region, such that the optical power of the optoelectronic device is confined to the optically active region.. ... Rockley Photonics Limited

Hardware efficient system and method for load balancing using a random number

A system and method for selecting a resource from among a plurality of resources. A total range of numbers is divided into a plurality of sub-ranges, each associated with a respective one of the resources. ... Rockley Photonics Limited

Optoelectronic switch

An optoelectronic switch comprising: a first plurality of detector remodulators (drms) (c3, d1), each drm having an integer number m of optical inputs and an integer number n of optical outputs; a second plurality of drms (c7, d5), each drm having n optical inputs and m optical outputs; a passive optical switch fabric (c4+c5+c6, d2+d3+d4) connecting the n optical outputs of each of the first plurality of drms with the n optical inputs of each of the second plurality of drms, the path of an optical signal through the optical switch fabric depending upon its wavelength; wherein each drm (c3, d1) of the first plurality of drms is configured to act as a tunable wavelength converter to select the desired path of an optical signal through the optical switch fabric (c4+c5+c6, d2+d3+d4); and wherein each of the first plurality of drms (c3, d1) includes a concentrator, the concentrator configured to aggregate optical signals received from any of the m inputs of that drm and to buffer them according to the one of the plurality of second drms (c7, d5) that includes their destination port.. . ... Rockley Photonics Limited

Waveguide modulator structures

A mach-zehnder waveguide modulator comprising a left arm including a left sige optical waveguide, and a right arm including a right sige optical waveguide; wherein each of the left and right optical waveguides comprises a junction region and a plurality of electrodes for providing a bias across the junction to enable control of the phase of light travelling through the junction regions via dispersion.. . ... Rockley Photonics Limited

Optoelectronic switch

A switch module and optoelectronic switch incorporating the same. The optoelectronic switch includes an n-dimensional array of switch modules arranged in a topology in which each switch module is a member of n sub-arrays, the sub-arrays defined with reference to the coordinates of the constituent switch modules, and wherein all of the members of each sub-array are connected by an active switch, which in some embodiments may be an optical active switch or an electronic active switch.. ... Rockley Photonics Limited

Single mode waveguide with an adiabatic bend

A single mode waveguide with a straight portion and a curved portion, the curved portion having the shape of an adiabatic bend. The single mode waveguide has a curved portion that is shaped according to an adiabatic bend, with a curvature that varies continuously, and that vanishes at a point at which the curved portion is contiguous with a straight portion of the waveguide. ... Rockley Photonics Limited

Optoelectronic switch

An optoelectronic switch for switching a signal from an input device to an output device includes a plurality of switch modules, each connected or connectable to an optical interconnecting region, wherein: each switch module is configured to output a wdm output signal to the optical interconnecting region, and the optoelectronic switch further includes one or more mzi routers, each configured to direct the wdm output signal from its source switch module towards its destination switch module, wherein the one or more mzi routers are located either on each of the switch modules, or in the interconnecting region.. . ... Rockley Photonics Limited

Synchronization and ranging in a switching system

A system and method for measuring propagation delays and other delays in an optical switching system. A transmitter is connected, through a circuit switch, to a receiver. ... Rockley Photonics Limited

Optoelectronic switch architectures

The present invention provides an optoelectronic switch for transferring an optical signal from an input device to an output device, the optoelectronic switch including an array of interconnected switch modules, which are interconnected by an interconnecting fabric. The switch modules are arranged in an n-dimensional array, the ith dimension having a size ri (i=1, 2, . ... Rockley Photonics Limited

System and method for line coding

A system and method for line coding of data. A serial transmitter includes a forward error correction encoding circuit followed by a bit conditioning circuit. ... Rockley Photonics Limited

Discrete wavelength tunable laser

A multisection digital supermode-distributed bragg reflector (msds-dbr) comprising: a plurality p of digital supermode bragg reflector (ds-dbr) grating sections arranged along a waveguide; wherein each ds-dbr grating section is configured to pass or reflect light over a given spectral region, the given spectral region being different from the spectral regions of the other ds-dbr grating sections; wherein each ds-dbr grating section comprises a plurality m of grating sub-regions, each sub-region corresponding to a spectral sub-band within the spectral region of the ds-dbr grating section, and wherein each grating sub-region includes a positive electrical contact and a negative electrical contact; said grating sub-region being configured to pass or reflect light of its spectral sub-band when an electrical bias is provided between its positive and negative electrical contacts.. . ... Rockley Photonics Limited

Optical switch architecture

An optoelectronic switch for transferring a signal from an input device for an output device, the optoelectronic switch including: a plurality of leaf switches, each having a radix r, and arranged in an l-dimensional array, in which the i-th dimension has a size rl where (i=1, 2, . . ... Rockley Photonics Limited

Optical modulators

An optoelectronic device. The optoelectronic device operable to provide a pam-n modulated output, the device comprising: m optical modulators, m being an integer greater than 1, the m optical modulators being arranged in a cascade, the device being configured to operate in n distinct transmittance states, as a pam-n modulator, wherein, in each transmittance state of the n distinct transmittance states, each of the m optical modulators has applied to it a respective control voltage equal to one of: a first voltage or a second voltage.. ... Rockley Photonics Limited

Discrete wavelength tunable laser

A multisection digital supermode-distributed bragg reflector (msds-dbr) comprising: a plurality p of digital supermode bragg reflector (ds-dbr) grating sections arranged along a waveguide; wherein each ds-dbr grating section is configured to pass or reflect light over a given spectral region, the given spectral region being different from the spectral regions of the other ds-dbr grating sections; wherein each ds-dbr grating section comprises a plurality m of grating sub-regions, each sub-region corresponding to a spectral sub-band within the spectral region of the ds-dbr grating section, and wherein each grating sub-region includes a positive electrical contact and a negative electrical contact; said grating sub-region being configured to pass or reflect light of its spectral sub-band when an electrical bias is provided between its positive and negative electrical contacts.. . ... Rockley Photonics Limited

04/27/17 / #20170117966

Optoelectronic switch

An l-dimensional optoelectronic switch for transferring an optical signal from an input device to an output device, the optoelectronic switch includes: a plurality of leaf switches, each having a radix r, and arranged in an l-dimensional array, in which each dimension has a respective size r, (1=1, 2, . . ... Rockley Photonics Limited

03/30/17 / #20170093717

System and method for routing

A system and method for routing. A packet includes a stack of one or more headers, such as a stack of multiprotocol label switching headers, that determines the path that the packet will take, through a sequence of switches, from its source to its destination. ... Rockley Photonics Limited

03/23/17 / #20170082876

Detector remodulator

A detector remodulator comprising a silicon on insulator (soi) waveguide platform including: a detector coupled to a first input waveguide; a modulator coupled to a second input waveguide and an output waveguide; and an electrical circuit connecting the detector to the modulator; wherein the detector, modulator, second input waveguide and output waveguide are arranged within the same horizontal plane as one another; and wherein the modulator includes a modulation waveguide region at which a semiconductor junction is set horizontally across the waveguide.. . ... Rockley Photonics Limited

03/16/17 / #20170078772

Detector remodulator and optoelectronic switch

A silicon-on-insulator chip including an arrayed waveguide grating (awg) and an array of detector remodulators (drms) in a planar arrangement with the awg such that the modulators or modulators and detectors of said drms are located within the same plane as the waveguides of the awg; and wherein each drm is located at an input or output of the awg.. . ... Rockley Photonics Limited

02/09/17 / #20170041691

Optoelectronic switch

A switch module and optoelectronic switch incorporating the same. The optoelectronic switch includes an n-dimensional array of switch modules arranged in a topology in which each switch module is a member of n sub-arrays, the sub-arrays defined with reference to the coordinates of the constituent switch modules, and wherein all of the members of each sub-array are connected by an active switch, which in some embodiments may be an optical active switch or an electronic active switch.. ... Rockley Photonics Limited

02/02/17 / #20170034607

Burst-mode receiver

Provided is a burst-mode receiver configured to receive an optical signal having a preamble and a data payload, the burst-mode receiver including a first bias resistor coupled between a first voltage supply and a photosensor, a first capacitor coupled between the photosensor and an amplifier, a first common-mode resistor configured to supply a voltage of a common-mode voltage supply to the amplifier, a first bypass switch configured to couple the first capacitor to the common-mode voltage supply while bypassing the first common-mode resistor, and a first data switch configured to couple the first capacitor to the amplifier, and to couple the first capacitor to the common-mode voltage supply through the first common-mode resistor.. . ... Rockley Photonics Limited

01/05/17 / #20170003450

Interposer beam expander chip

An interposer chip for coupling light between an array of fibers and an array of optical waveguides on a second photonic chip. The interposer chip has an array of v-grooves for aligning the ends of the fibers to corresponding ends of an array of optical waveguides on the interposer chip. ... Rockley Photonics Limited








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