公开(公告)号：US11435522B2

公开(公告)日：2022-09-06

申请号：US16569486

申请日：2019-09-12

Applicant: Finisar Corporation

Inventor： Daniel Mahgerefteh ,  Shiyun Lin ,  Yasuhiro Matsui ,  Ding Wang ,  David Bruce Young

IPC: G02B6/12

Abstract: A grating coupled laser (GCL) includes an active section and a passive section. The passive section is butt coupled to the active section to form a butt joint with the active section. The active section includes an active waveguide. The passive section includes a passive waveguide, a transmit grating coupler, and a top cladding. The passive waveguide is optically coupled end to end with the active waveguide and includes a first portion and a second portion. The first portion of the passive waveguide is positioned between the second portion of the passive waveguide and the active waveguide. The transmit grating coupler is optically coupled to the passive waveguide and includes grating teeth that extend upward from the second portion of the passive waveguide. The top cladding is positioned directly above the first portion of the passive waveguide and is absent directly above at least some of the transmit grating coupler.

公开(公告)号：US11086088B2

公开(公告)日：2021-08-10

申请号：US16555701

申请日：2019-08-29

Applicant: Finisar Corporation

Inventor： Bernd Huebner ,  Tsurugi Sudo ,  Shiyun Lin

IPC: G02B6/42 ,  G02B6/26

Abstract: An optoelectronic assembly may include a photonic integrated circuit (PIC) with a top surface and a laser with a top surface and a bottom surface. The optoelectronic assembly may also include a housing configured to cooperate with the PIC to one or both of house and support one or more components. The housing may include a PIC mount including a first surface to interface with the top surface of the PIC, and a laser mount including a second surface to interface with the top or bottom surface of the laser. The first surface and the second surface may be parallel to each other.

公开(公告)号：US10684416B2

公开(公告)日：2020-06-16

申请号：US16045218

申请日：2018-07-25

Applicant: Finisar Corporation

Inventor： Shiyun Lin ,  Jin-Hyoung Lee

IPC: G02B6/00 ,  G02B6/126 ,  G02B6/122 ,  G02B6/27

Abstract: A polarization splitter rotator (PCR) can include a substrate, a primary through waveguide formed in the substrate having a custom tapered top region over a bottom region, a secondary cross waveguide formed in the substrate having a custom body shape, and a gap between the primary through waveguide and secondary cross waveguide. The custom tapered top region forces the TM mode to convert to a TE mode and cross into the secondary cross waveguide.

公开(公告)号：US20200081204A1

公开(公告)日：2020-03-12

申请号：US16569486

申请日：2019-09-12

Applicant: Finisar Corporation

Inventor： Daniel Mahgerefteh ,  Shiyun Lin ,  Yasuhiro Matsui ,  Ding Wang ,  David Bruce Young

IPC: G02B6/42 ,  H01S5/125 ,  H01S5/343

Abstract: A grating coupled laser (GCL) includes an active section and a passive section. The passive section is butt coupled to the active section to form a butt joint with the active section. The active section includes an active waveguide. The passive section includes a passive waveguide, a transmit grating coupler, and a top cladding. The passive waveguide is optically coupled end to end with the active waveguide and includes a first portion and a second portion. The first portion of the passive waveguide is positioned between the second portion of the passive waveguide and the active waveguide. The transmit grating coupler is optically coupled to the passive waveguide and includes grating teeth that extend upward from the second portion of the passive waveguide. The top cladding is positioned directly above the first portion of the passive waveguide and is absent directly above at least some of the transmit grating coupler.

公开(公告)号：US10473858B1

公开(公告)日：2019-11-12

申请号：US16271471

申请日：2019-02-08

Applicant: Finisar Corporation

Inventor： Daniel Mahgerefteh ,  Ying Luo ,  Shiyun Lin ,  Jin-Hyoung Lee

IPC: G02B6/12 ,  G02B6/14 ,  G02B6/125 ,  G02B6/122

Abstract: An optical waveguide may include a silicon portion and a silicon nitride portion positioned over the silicon portion. The silicon portion may include a taper that decreases a width of the silicon portion. The optical waveguide may include a transition between a loaded single mode or multimode waveguide to a single mode waveguide. The silicon nitride portion may confine optical signals traveling through the optical waveguide in the silicon portion.

公开(公告)号：US10302866B2

公开(公告)日：2019-05-28

申请号：US15962619

申请日：2018-04-25

Applicant: Finisar Corporation

Inventor： Shiyun Lin ,  Bryan Park

IPC: G02B6/27 ,  G02B6/122 ,  G02B6/126 ,  G02B6/28 ,  G02B6/293 ,  G02B6/12

Abstract: Various embodiments relate to polarization splitters. A polarization splitter may include a silicon nitride (SiN) waveguide core configured to receive an input light signal having a first polarization mode and a second polarization mode. The polarization splitter may further include a silicon (Si) slot waveguide core disposed proximate the SiN waveguide core. The Si slot waveguide core may include a tapered portion at a first end configured to couple the first polarization mode to the Si slot waveguide.