公开(公告)号：US20210311335A1

公开(公告)日：2021-10-07

申请号：US17352223

申请日：2021-06-18

Applicant: ROCKLEY PHOTONICS LIMITED

Inventor： James Dongyoon Oh ,  David Arlo Nelson ,  Pradeep Srinivasan ,  Amit Singh Nagra ,  Aaron John Zilkie ,  Jeffrey Driscoll ,  Aaron L. Birkbeck

IPC: G02F1/025 ,  G02B6/134 ,  G02F1/225

Abstract: A modulator. In some embodiments, the modulator includes a portion of an optical waveguide, the waveguide including a rib extending upwards from a surrounding slab. The rib may have a first sidewall, and a second sidewall parallel to the first sidewall. The rib may include a first region of a first conductivity type, and a second region of a second conductivity type different from the first conductivity type. The second region may have a first portion parallel to and extending to the first sidewall, and a second portion parallel to the second sidewall. The first region may extend between the first portion of the second region and the second portion of the second region.

公开(公告)号：US11994716B2

公开(公告)日：2024-05-28

申请号：US17695451

申请日：2022-03-15

Applicant: ROCKLEY PHOTONICS LIMITED

Inventor： James Dongyoon Oh ,  Jeffrey Driscoll

IPC: G02B6/124 ,  G02B6/12 ,  G02F1/01 ,  H01S5/026 ,  H01S5/125 ,  H01S5/06

CPC classification number: G02B6/124 ,  H01S5/0261 ,  G02B2006/12097 ,  G02B2006/12121 ,  G02F1/0147 ,  H01S5/0612 ,  H01S5/125

Abstract: An optical waveguide structure. In some embodiments, the optical waveguide structure includes a semiconductor waveguide having a waveguide ridge, and a heater. The waveguide ridge may have a varying dopant concentration across its cross-section. The heater may include a first contact and a second contact, and the waveguide structure may include a conductive path from the first contact to the second contact, the conductive path extending through a doped portion of the waveguide ridge.

公开(公告)号：US11815748B2

公开(公告)日：2023-11-14

申请号：US17540782

申请日：2021-12-02

Applicant: ROCKLEY PHOTONICS LIMITED

Inventor： James Dongyoon Oh ,  Hooman Abediasl ,  Gerald Cois Byrd ,  Karlheinz Muth ,  Yi Zhang ,  Aaron John Zilkie

IPC: G02F1/01 ,  G02F1/035 ,  G02F1/295 ,  G02B6/10 ,  G02F1/025 ,  G02F1/015

CPC classification number: G02F1/025 ,  G02F1/0157 ,  G02F2201/063 ,  G02F2203/21

Abstract: An optoelectronic device, including: a rib waveguide, the rib waveguide including: a ridge portion, which includes a temperature-sensitive optically active region, and a slab portion, positioned adjacent to the ridge portion; the device further comprising a heater, disposed on top of the slab portion wherein a part of the heater closest to ridge portion is at least 2 μm away from the ridge portion. The device may also have a heater provided with a bottom cladding layer, and may also include various thermal insulation enhancing cavities.