106 patents
Utility
Method for Detecting Low-power Optical Signal with High Sensitivity
10 Mar 22
A method for making a pair of photodiodes to detect low-power optical signal includes providing a waveguide including one or more branches in a silicon photonics substrate to deliver an input optical signal to the silicon photonics integrated circuit; forming a pair of nearly redundant photodiodes in silicon photonics platform in the silicon photonics substrate. coupling a first one of the pair of nearly redundant photodiodes optically to each of the one or more branches for receiving the input optical signal combined from all of the one or more branches; coupling a second one of the pair of nearly redundant photodiodes electrically in series to the first one of the pair of nearly redundant photodiodes; and drawing a current from the first one of the pair of nearly redundant photodiodes under a reversed bias voltage applied to the pair of nearly redundant photodiodes.
Jie LIN, Masaki KATO, Bruno TOURETTE, Brian TAYLOR
Filed: 4 Sep 20
Utility
Germanium-on-silicon Avalanche Photodetector In Silicon Photonics Platform, Method of Making the Same
3 Mar 22
A germanium-on-silicon avalanche photodetector includes a silicon device layer of a silicon-on-insulator substrate having a central region characterized by modest-heavy n+ doping state between a first electrode region and a second electrode region in heavy n++ doping state; a first sub-layer of the central region modified to nearly neutral doping state and located from a first depth down to a second depth below a top surface of the silicon device layer; a second sub-layer of the central region modified to modest p doping state embedded from the top surface down to the first depth to interface with the first sub-layer; a layer of germanium with a bottom side attached to the top surface of the second sub-layer; and a third sub-layer embedded into a top side of the layer of germanium, characterized by heavy p++ doping state.
Yu LI, Masaki KATO
Filed: 3 Sep 20
Utility
Networking Switching Devices and Methods Thereof
3 Mar 22
The present invention is direct to data communication.
Whay Sing LEE, Arash FARHOODFAR, Volodymyr SHVYDUN, Michael DUCKERING
Filed: 3 Sep 20
Utility
Optimizing Host / Module Interface
27 Jan 22
Embodiments address optimization of an electrical interface between an optical host device and an optical module device at installation time.
Todd ROPE, Ilya LYUBOMIRSKY, Whay Sing LEE, Arash FARHOODFAR
Filed: 26 Feb 21
Utility
Side Mode Suppression for Extended C-band Tunable Laser
13 Jan 22
A method for improving wide-band wavelength-tunable laser.
Xiaoguang HE, Radhakrishnan L. NAGARAJAN
Filed: 7 Jul 20
Utility
In-packaged Multi-channel Light Engine on Single Substrate
9 Dec 21
An in-packaged multi-channel light engine is packaged for four or more sub-assemblies of optical-electrical sub-modules.
Radhakrishnan L. NAGARAJAN, Liang DING, Mark PATTERSON, Roberto COCCIOLI
Filed: 5 Jun 20
Utility
Co-packaged Light Engine Chiplets on Switch Substrate
9 Dec 21
A co-packaged optical-electrical module includes a module substrate with a minimum lateral dimension no greater than 100 mm.
Radhakrishnan L. NAGARAJAN, Liang DING, Mark PATTERSON, Roberto COCCIOLI, Steve ABOAGYE
Filed: 5 Jun 20
Utility
Systems and Methods for Timing Recovery with Bandwidth Extension
28 Oct 21
The present invention is directed to circuits and communication.
Benjamin P. SMITH, Jamal RIANI
Filed: 28 Apr 20
Utility
Colorless Splitter Based on Soi Platform
21 Oct 21
An optical splitter includes a silicon-on-insulator substrate having a cladding layer.
Jie LIN
Filed: 15 Apr 20
Utility
Maximum Likelihood Error Detection for Decision Feedback Equalizers with Pam Modulation
30 Sep 21
The present invention is directed to data communication.
Jamal RIANI, Farshid RAD, Benjamin P. SMITH, Yu LIAO, Sudeep BHOJA
Filed: 14 Jun 21
Utility
Method and Device for Digital Compensation of Dynamic Distortion In High-speed Transmitters
23 Sep 21
A device and method of operation for digital compensation of dynamic distortion.
Dragos CARTINA, Ankit BHARGAV, Jamal RIANI, Wen-Sin LIEW, Yu LIAO, Chang-Feng LOI
Filed: 7 Apr 21
Utility
Systems and Methods for Interleaved Hamming Encoding and Decoding
16 Sep 21
The present invention is directed to data communication and encoding techniques.
Benjamin SMITH, Volodymyr SHVYDUN, Jamal RIANI, ILya LYUBOMIRSKY
Filed: 13 Mar 20
Utility
Inductors with Compensated Electromagnetic Coupling
9 Sep 21
The present invention is directed to electrical circuits. and more specially, inductor designs that reduce on-chip electromagnetic coupling in certain applications.
Marco GARAMPAZZI, Matteo PISATI
Filed: 12 Nov 20
Utility
Thin-film Filter for Tunable Laser
2 Sep 21
A thin-film device for a wavelength-tunable semiconductor laser.
Xiaoguang HE, Radhakrishnan L. NAGARAJAN, Brian TAYLOR
Filed: 28 Feb 20
Utility
Light Source for Integrated Silicon Photonics
26 Aug 21
A light source based on integrated silicon photonics includes a die of a silicon substrate having at least one chip site configured with a surface region, a trench region, and a first stopper region located separately between the surface region and the trench region.
Xiaoguang HE, Radhakrishnan L. NAGARAJAN
Filed: 5 Feb 21
Utility
Silicon Photonics Integration Circuit
29 Jul 21
A silicon photonics integration circuit includes a silicon substrate member; a RX sub-circuit formed in the silicon substrate member including multiple RX-input ports each having a mode size converter configured to receive an incoming light signal into one of multiple waveguides and multiple RX photo detectors coupled respectively to the multiple waveguides; and a TX sub-circuit formed in the silicon substrate member including one or more TX-input ports each having a mode size converter coupled to a first TX photo detector into one input waveguide, one or more 1×2 directional couplers each coupled between the input waveguide and two mod-input waveguides, multiple modulators coupled between respective multiple mod-input waveguides and multiple mod-output waveguides each being coupled to a second TX photo detector into one of multiple output waveguides, and multiple TX-output ports each having a mode size converter coupled to respective one of the multiple output waveguides.
Xiaoguang TU, Masaki KATO, Yu LI
Filed: 29 Jan 20
Utility
Integrated Compact In-package Light Engine
10 Jun 21
An integrated compact light engine configured in a on-board in-package optics assembly.
Ding LIANG, Mark PATTERSON, Roberto COCCIOLI, Radhakrishnan L. NAGARAJAN
Filed: 9 Dec 20
Utility
PAM4 Transceivers for High-speed Communication
3 Jun 21
The present invention is directed to data communication.
Karthik GOPALAKRISHNAN, Jamal RIANI, Arun TIRUVUR
Filed: 9 Feb 21
Utility
Tap Centerer Method and Structure for Coherent Optical Receiver
27 May 21
A method and structure for tap centering in a coherent optical receiver device.
Mario R. HUEDA, José CORREA, Oscar E. AGAZZI
Filed: 3 Feb 21
Utility
Optical Module
27 May 21
An integrated apparatus with optical/electrical interfaces and protocol converter on a single silicon substrate.
Radhakrishnan L. NAGARAJAN
Filed: 5 Feb 21