公开(公告)号：US20240329489A1

公开(公告)日：2024-10-03

申请号：US18192509

申请日：2023-03-29

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Yiwei Peng ,  Wayne Sorin ,  Yuan Yuan ,  Stanley Cheung ,  Thomas Van Vaerenbergh ,  Marco Fiorentino

IPC: G02F1/21 ,  G02F1/225 ,  G06N3/04

CPC classification number: G02F1/212 ,  G02F1/225 ,  G06N3/04 ,  G02F2203/50

Abstract: An example Mach-Zehnder interferometer (MZI) is provided. The MZI includes a first waveguide arm and a second waveguide arm coupled to the first waveguide arm via a pair of optical couplers. In the proposed MZI, at least one of the first waveguide arm and the second waveguide arm includes a plurality of Bragg-grating segments and a phase-shifter segment formed between adjacent Bragg-grating segments of the plurality of Bragg-grating segments. The phase-shifter segment formed between adjacent Bragg-grating segments induces a predefined phase-shift in an optical signal propagating through respective at least one of the first waveguide arm and the second waveguide arm, resulting in increased linearity an optical transmission via the MZI.

公开(公告)号：US10985531B2

公开(公告)日：2021-04-20

申请号：US16258616

申请日：2019-01-27

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Binhao Wang ,  Wayne Sorin ,  Michael Renne Ty Tan ,  Sagi Varghese Mathai ,  Stanley Cheung

IPC: H01S5/183 ,  H01S5/42

Abstract: 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.