公开(公告)号：US20240118582A1

公开(公告)日：2024-04-11

申请号：US17963027

申请日：2022-10-10

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： YIWEI PENG ,  Yuan YUAN ,  Stanley Cheung

IPC: G02F1/21 ,  G02F1/225 ,  G06N3/04 ,  G06N3/067

CPC classification number: G02F1/212 ,  G02F1/2257 ,  G06N3/0481 ,  G06N3/0675 ,  G02F2203/15

Abstract: Systems, devices, and methods are provided for all-optical reconfigurable activation devices for realizing various activations functions using low input optical power. The device and systems disclosed herein include a directional coupler comprising a first phase-shift mechanism and an interferometer coupled to the directional coupler. The interferometer comprises at least one microring resonator and a second phase-shift mechanism coupled to thereto. The interferometer and the directional coupler comprise waveguides formed of a first material, while the microring resonator comprises a waveguide formed of a second material and a third phase-shift mechanism. The second material is provided as a low-loss material having a high Kerr effect and large bandgaps, to generate various nonlinear activation functions. The first, second, and third phase-shift mechanisms are configured to control biases within the disclosed systems and devices to achieve a desired activation function.

公开(公告)号：US20240204881A1

公开(公告)日：2024-06-20

申请号：US18081392

申请日：2022-12-14

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Stanley CHEUNG ,  Geza KURCZVEIL ,  Yiwei PENG ,  Yuan YUAN ,  Raymond G. BEAUSOLEIL

IPC: H04B10/564 ,  G02F1/313 ,  H04B10/079

CPC classification number: H04B10/564 ,  G02F1/3136 ,  H04B10/0791 ,  H04B10/07955

Abstract: Systems, devices, and methods are provided for built-in redundancy in optical devices that output an optical signal, for example, to photonic integrated circuits. The device and systems disclosed herein include a plurality of optical sources coupled to a plurality of waveguides. Each adjacent pair of the plurality of waveguides are coupled to an optical switching devices that comprises an interferometer having a first branch comprising a phase-shift mechanism coupled to one waveguide of the pair of waveguides. A voltage bias can be applied to the phase-shift mechanisms to tune a respective phase difference and direct an optical signal from any of the plurality of optical sources to the output end of the optical device. According to various examples disclosed herein, the phase-shift mechanisms comprises metal oxide semiconductor (MOS) capacitors.