Hewlett Packard Enterprise Development LP

Novera Optics, Inc.

Agilent Technologies, Inc.

Hewlett-packard Company

Hewlett-packard Development Company, L.p.

Leland Stanford Junior University

Other

Wayne V Sorin

Michael Renne Ty Tan

Sagi Varghese Mathai

Douglas Michael Baney

Paul Kessler Rosenberg

Georgios Panotopoulos

David A Fattal

Byoung Yoon Kim

Stanley Cheung

Shih-Yuan Wang

Marco Fiorentino

Brian Lee Heffner

Seok Hyun Yun

Ben J Vakoc

Joaquin Matres

Michael R Tan

Susant K Patra

Shalini Venkatesh

Rodney S Tucker

Binhao Wang

Kevin B Leigh

Herbert J Shaw

Lars Helge Thylen

Seok-Hyun Yun

In-Kag Hwang

Alexandre M Bratkovski

Chang-Hee Lee

Joaquin Matres Abril

Hyo-Sang Kim

Mir Ashkan Seyedi

David K Donald

Michael Josef Stuke

Pavel G Polynkin

Steven A Newton

Steven L Shepherd

Pavle Sedic

Hee-Yeal Rhy

John Norton

Terrel L Morris

Michael S Schlansker

Arlen Lee Roesner

Huei Pei Kuo

Jacob B Khurgin

Dale W Schroeder

Jean Tourrilhes

Glenn Cochran Simon

Bogdan Szafraniec

Curt Alan Flory

Michel J Digonnet

Zhihong Huang

Jingjing Li

Kok Wai Chang

Ralph A Bergh

Byoung Y Kim

Yuan Yuan

Hong Lin

Jose Renato G Santos

Karen Liu

Xiaoge Zeng

Bong Wan Lee

Robert C Youngquist

Sonny Vo

Joseph Straznicky

Cassius C Cutler

Mike Schlansker

Rance M Fortenberry

Chao-Kun Lin

Ronald V Alves

Jonathan Lacey

Brian H Kolner

Kun-Youl Park

Hee Su Park

Harry Chou

Michael Renee Ty Tan

Hyo Sang Kim

Bogdan Szfraniec

Sagi Varhgese Mathai

Bernd Hesse

B Yoon Kim

Kwan Il Lee

Helge E Engan

Dubravk I Babic

Jin-Serk Baik

Hee Yeal Rhy

Myoung Soo Lee

Myung-Soo Lee

Systems and methods are provided for achieving graceful bandwidth scaling (i.e. higher data transmission rates) for Coarse Wavelength Division Multiplexing (CWDM) and CWDM-4 technologies. Examples utilize a waveband architecture built around the CWDM wavelengths. This waveband architecture adds additional wavelength transmission channels (which may equate to faster data transmission rates) while maintaining backwards compatibility with existing CWDM/CWDM-4 technologies. Examples may include waveband devices (e.g. waveband light sources, waveband transmitters, waveband receivers, waveband transceivers, etc.) designed to operate with one or more CWDM wavebands while maintaining backwards compatibility with existing CWDM-4 technologies.

Optical devices for coarse wavelength division multiplexing wavebands

Examples described herein relate to an optical device that entails phase shifting an optical signal. The optical device includes an optical waveguide having a first semiconductor material region and a second semiconductor material region formed adjacent to each other and defining a junction therebetween. Further, the optical device includes an insulating layer formed on top of the optical waveguide. Moreover, the optical device includes a III-V semiconductor layer formed on top of the insulating layer causing an optical mode of an optical signal passing through the optical waveguide to overlap with the first semiconductor material region, the second semiconductor material region, the insulating layer, and the III-V semiconductor layer thereby resulting in a phase shift in the optical signal passing through the optical waveguide.

Optical device for phase shifting an optical signal

Coupled-cavity vertical cavity surface emitting lasers (VCSELs) are provided by the present disclosure. The coupled-cavity VCSEL can comprise a VCSEL having a first mirror, a gain medium disposed above the first mirror, and a second mirror disposed above the gain medium, wherein a first cavity is formed by the first mirror and the second mirror. A second cavity is optically coupled to the VCSEL and configured to reflect light emitted from the VCSEL back into the first cavity of the VCSEL. In some embodiments, the second cavity can be an external cavity optically coupled to the VCSEL through a coupling component. In some embodiments, the second cavity can be integrated with the VCSEL to form a monolithic coupled-cavity VCSEL. A feedback circuit can control operation of the coupled-cavity VCSEL so the output comprises a target high frequency signal.

Coupled-cavity VCSELs for enhanced modulation bandwidth

A silicon interposer may include an on-chip DC blocking capacitor, comprising: a first electrical connection to couple to a supply voltage and to cathodes of a plurality of photodiodes formed in a two-dimensional photodiode array on a first substrate, and a second electrical connection to couple to ground and to ground inputs of a plurality of transimpedance amplifiers on a second substrate; wherein the on-chip DC blocking capacitor is configured to be shared among a plurality of receiver circuits comprising the plurality of photodiodes and the plurality of transimpedance amplifiers; and wherein the silicon interposer comprises a substrate separate from the first substrate and the second substrate.

Silicon interposer for capacitive coupling of photodiode arrays

Examples of the present disclosure include a tunable laser comprising a waveguide including gain section. The waveguide overlies and is optically coupled to another waveguide. The another waveguide has a reflector at one end. A laser cavity is formed in the waveguides.

Tunable laser

Resonant cavity photodetector structures which integrate photodetection and filtering capabilities is described. A resonant cavity photodetector structure generally can comprise a region including a resonator, and an absorption region that can be integrated into a cavity of the resonator. The resonator can perform filtering that is suitable for high-bandwidth optical communications, such as Dense Wavelength Multiplexing (DWDM). In some cases, the resonator is a microring resonator. An absorption region can include a photodiode which performs optical energy detection acting as a photodetector, such as an avalanche photodiode (APD) wherein the photodiode. A coupling distance between the resonator region and the absorption region can be controlled, which allows control of a coupling strength between an optical mode of the resonator and the absorption region such that a quality factor (Q-factor) can be tuned. Thus, by adjusting the Q-factor, the resonant cavity photodetector structure can be tuned to achieve a desirable performance.

Photodetectors with controllable resonant enhancement

In the examples provided herein, a system includes an input waveguide, where a first end of the input waveguide is coupled to a light-emitting optical transmitter to allow the emitted light to enter the input waveguide, and a first ring resonator tunable to be resonant at a first resonant wavelength, wherein the first ring resonator is positioned near the input waveguide to couple a light at the first resonant wavelength from the input waveguide to the first ring resonator. The system also has a bus waveguide positioned to couple the light at the first resonant wavelength in the first ring resonator to the bus waveguide, and a mechanism to wavelength-tune the first ring resonator to a particular wavelength.

Tunable ring resonator multiplexers

Examples herein relate to optical modules. In particular, implementations herein relate to optical modules that include top-emitting VCSELs and/or top-entry photodetectors. The optical modules include a first interposer having opposing first and second sides and a second interposer having opposing first and second sides. The optical modules include a plurality of top-emitting vertical-cavity surface-emitting lasers (VCSELs) coupled to the second interposer and a plurality of electrical conductors forming electrical paths between electrical contacts of the top-emitting VCSELs and the second side of the second interposer. The VCSELs are configured to emit optical signals having different wavelengths. The optical signals are configured to be combined and transmitted over a single optical fiber.

Wavelength division multiplexing optical module

A VCSEL device includes a substrate and a first DBR structure disposed on the substrate. The VCSEL device further includes a cathode contact disposed on a top surface of the first DBR structure. In addition, the VCSEL device includes a VCSEL mesa that is disposed on the top surface of the first DBR structure. The VCSEL mesa includes a quantum well, a non-circularly-shaped oxide aperture region disposed above the quantum well, and a second DBR structure disposed above the non-circularly-shaped oxide aperture region. In addition, the VCSEL mesa includes a selective polarization structure disposed above the second DBR structure and an anode contact disposed above the selective polarization structure.

Intensity noise mitigation for vertical-cavity surface emitting lasers

An example block assembly for optical signal filtering is provided herein. The block assembly includes a base with at least one aperture to receive a mandrel in a plurality of adjustable positions and orientations relative to an axis of the base. The block assembly also includes a first member and a second member extending from the base.

Optical signal filtering

In example implementations of a vertical-cavity surface-emitting laser (VCSEL), the VCSEL includes a p-type distributed Bragg reflector (p-DBR) layer and a p-type ohmic (p-ohmic) contact layer adjacent to the p-DBR layer. The p-DBR layer may include an oxide aperture and the p-ohmic contact layer may have an opening that is aligned with the oxide aperture. The opening may be filled with a dielectric material. A metal layer may be coupled to the p-ohmic contact layer and encapsulate the dielectric material.

Low impedance VCSELs

Optical modules are disclosed. An example optical module includes a substrate comprising a grating coupler, an optical connector removably coupled to the substrate adjacent the grating coupler to optically couple the optical connector and the grating coupler and an integrated circuit coupled to the substrate.

Optical modules

Systems and methods are provided for a dual-side bi-directional optical multiplexing system includes a light receiving elements array receiving light from in an egress propagation direction from an optical fiber, arranged at a side of the optical fiber. The system also includes a light transmitting elements array emitting light in an ingress propagation direction into the optical fiber, and arranged at a second position to an opposing side of the optical fiber. The light receiving elements array and the light transmitting elements array are on dual-sides of the system with respect to the optical fiber. The system also includes bi-directional micro-optics interfacing with the optical fiber, and interfacing with the light transmitting elements array to direct light propagating in the ingress direction emitted from the light transmitting element array towards the optical fiber.

Systems and methods of dual-side array bi-directional CWDM micro-optics

In example implementations, an optical connector is provided. The optical connector includes a jumper holder, a base bracket, and an optical ferrule. The jumper holder holds a plurality of ribbon fibers. The base bracket is coupled to an electrical substrate to mate with the jumper holder. The optical ferrule is coupled to an end of each one of the plurality of ribbon fibers. The optical ferrule is laterally inserted into a corresponding orthogonal socket that is coupled to a silicon interposer on the electrical substrate to optically mate the optical ferrule to the orthogonal socket.

Laterally mated optical connectors

An apparatus includes a first and second VCSEL, each with an integrated lens. The VCSELs emit a first light beam having first optical modes at first wavelengths and a second light beam having second optical modes at second wavelengths. The apparatus also has an optical block with a first and second surface, a mirror coupled to the second surface, and a wavelength-selective filter coupled to the first surface. The first integrated lens mode matches the first beam to the optical block, and the second integrated lens mode matches the second beam to the optical block such that the first beam and second beam each have substantially a beam waist with a beam waist dimension at the first and second input region, respectively. An exit beam that includes light from the first beam and the second beam is output from the second surface of the optical block.

Optical mode matching

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Moutain View, CA, United States of America

Wayne V Sorin