公开(公告)号：US10826267B2

公开(公告)日：2020-11-03

申请号：US16365624

申请日：2019-03-26

Applicant: FINISAR CORPORATION

Inventor： Daniel Mahgerefteh ,  Jianxiao Chen ,  Bernd Huebner ,  Xiaojie Xu ,  Yasuhiro Matsui ,  David Adams ,  The′ Linh Nguyen

IPC: G02B6/12 ,  H01S5/10 ,  H01S5/026 ,  H01S5/187 ,  G02B6/124 ,  H01S5/00 ,  H01S5/22 ,  H01S5/30 ,  G02B6/122 ,  G02B6/30 ,  G02B6/27 ,  H01S5/022 ,  H01S5/12 ,  H01S5/125 ,  H01S5/20

Abstract: A system includes a surface coupled edge emitting laser that includes a core waveguide, a fan out region optically coupled to the core waveguide in a same layer of the surface coupled edge emitting laser as the core waveguide; and a first surface grating formed in the fan out region; and a photonic integrated circuit (PIC) that includes an optical waveguide and a second surface grating formed in an upper layer of the PIC, wherein the second surface grating is in optical alignment with the first surface grating.

公开(公告)号：US10122523B2

公开(公告)日：2018-11-06

申请号：US15451227

申请日：2017-03-06

Applicant: FINISAR CORPORATION

Inventor： Ilya Lyubomirsky ,  The′ Linh Nguyen

IPC: H04B10/69 ,  H04L7/00 ,  H04L25/03 ,  H04L25/14

Abstract: A multi-channel receiver that includes a first clock recovery unit configured to recover a first clock signal associated with a first optical channel is disclosed. A first coefficient estimation unit estimates a first set of coefficients using the first clock signal. A second clock recovery unit configured to recover a second clock signal associated with a second optical channel using the first clock signal as a reference clock signal. A second coefficient estimation unit estimates a second set of coefficients using the first set of coefficients.

公开(公告)号：US09941864B2

公开(公告)日：2018-04-10

申请号：US15090614

申请日：2016-04-04

Applicant: FINISAR CORPORATION

Inventor： Henry M. Daghighian ,  Luke M. Ekkizogloy ,  The′ Linh Nguyen ,  Christopher Kocot ,  James Prettyleaf

IPC: H03K17/00 ,  H03K3/013 ,  H03K7/08 ,  H04B10/40 ,  H03K19/21

CPC classification number: H03K3/013 ,  H03K7/08 ,  H03K19/21 ,  H04B10/40

Abstract: An example embodiment includes a fiber optic integrated circuit (IC). The fiber optic IC includes an integrated power supply. The integrated power supply includes a filter, an active switch, and a pulse width modulator (“PWM”). The filter is configured to convert a signal to an output signal of the integrated power supply. The active switch is configured to control introduction of the signal to the filter. The PWM is configured to generate a PWM output signal that triggers the active switch.

公开(公告)号：US09515746B2

公开(公告)日：2016-12-06

申请号：US14500212

申请日：2014-09-29

Applicant: FINISAR CORPORATION

Inventor： Frank J. Flens ,  Daniel Mahgerefteh ,  The′ Linh Nguyen ,  Jimmy Alan Tatum

IPC: H04B10/00 ,  H04B10/80

CPC classification number: H04B10/40 ,  H04B10/502 ,  H04B10/801

Abstract: An optically enabled multi-chip module has an optical engine transceiver and a host system chip. The optical engine transceiver has an optical engine front-end and an optical engine macro. The optical engine front-end has multiple laser diodes, laser driver circuitry electrically interfaced with each of the laser diodes, multiple photodiodes, amplifier circuitry electrically interfaced with each of the photodiodes, and at least one optical element optically positioned between the laser diodes and at least one optical fiber and between the photodiodes and the at least one optical fiber. The at least one optical element optically interfaces the laser diodes and photodiodes with the optical fiber. The optical engine macro is both electrically interfaced with and physically segregated from the optical engine front-end. The optical engine macro provides a subset of optical transceiver functionality to the optical engine front-end. The host system chip is electrically interfaced with the optical engine transceiver.

Abstract translation: 光学启用的多芯片模块具有光学引擎收发器和主机系统芯片。 光引擎收发器具有光引擎前端和光引擎宏。 光学引擎前端具有多个激光二极管，与每个激光二极管电连接的激光驱动器电路，多个光电二极管，与每个光电二极管电连接的放大器电路，以及光学定位在激光二极管之间的至少一个光学元件 至少一个光纤，并且在所述光电二极管和所述至少一个光纤之间。 所述至少一个光学元件将激光二极管和光电二极管与光纤光学接口。 光学引擎宏与光引擎前端电接口并与之物理隔离。 光学引擎宏为光引擎前端提供光收发器功能的子集。 主机系统芯片与光引擎收发器电接口。