公开(公告)号：US20200159034A1

公开(公告)日：2020-05-21

申请号：US16193737

申请日：2018-11-16

Applicant: Finisar Corporation

Inventor： Tengda Du ,  Xiaojie Xu

IPC: G02B27/10 ,  H04J14/02 ,  G02B27/12

Abstract: In an example embodiment, a method includes receiving a first combined optical signal at an edge filter. The method further includes redirecting, at the edge filter, a second combined optical signal toward a first zigzag demultiplexer; and passing a third combined optical signal through the edge filter toward a light redirector based on wavelength. The method further includes redirecting the third combined optical signal toward a second zigzag demultiplexer. The method may further includes separating, at the first zigzag demultiplexer, the second combined optical signal into a first optical signal on a first optical path and a second optical signal on a second optical path based on wavelength. The method further includes separating, at the second zigzag demultiplexer, the third combined optical signal into a third optical signal on a third optical path and a fourth optical signal on a fourth optical path based on wavelengths.

公开(公告)号：US20170276876A1

公开(公告)日：2017-09-28

申请号：US15490758

申请日：2017-04-18

Applicant: FINISAR CORPORATION

Inventor： Tengda Du ,  Jack Xu

IPC: G02B6/27 ,  G02F1/09 ,  G02B6/42

CPC classification number: G02B6/2746 ,  G02B6/272 ,  G02B6/2773 ,  G02B6/4246 ,  G02F1/093

Abstract: An optical circulator integrated into a transceiver for bi-directional communication may include a core configured to pass a transmission signal in a transmit direction and a received signal in a receive direction. The optical circulator may include an input port optically coupled to the core. The input port may be configured to deliver the transmission signal to the core. The optical circulator may include an output port optically coupled to the core. The output port may be configured to receive the received signal from the core. The optical circulator may additionally include a network port optically coupled to the core. The network port may be configured to receive the transmission signal from the core and deliver the transmission signal to a fiber optic cable. The network port may be configured to receive the received signal from the fiber optic cable and deliver the received signal to the core.

公开(公告)号：US20170261694A1

公开(公告)日：2017-09-14

申请号：US15454585

申请日：2017-03-09

Applicant: Finisar Corporation

Inventor： Xiaojie Xu ,  Thomas W. Mossberg ,  Tengda Du ,  Christoph M. Greiner ,  Dmitri Iazikov

IPC: G02B6/34 ,  G02B6/293 ,  G02B6/30

CPC classification number: G02B6/34 ,  G02B6/29307 ,  G02B6/29308 ,  G02B6/29311 ,  G02B6/30 ,  G02B2006/12107

Abstract: An optical assembly includes a first grating device configured to: receive a light beam that includes an optical signal with a particular wavelength from a fiber; and change a propagation direction of the optical signal according to the particular wavelength of the optical signal. The optical assembly also includes a second grating device configured to: receive the optical signal outputted from the first grating device; change the propagation direction of the optical signal according to the particular wavelength of the optical signal; and direct the optical signal onto a grating coupler. The first grating device and the second grating device are configured to satisfy a plurality of configuration constraints.

公开(公告)号：US09885815B2

公开(公告)日：2018-02-06

申请号：US14525054

申请日：2014-10-27

Applicant: Finisar Corporation

Inventor： Tengda Du

IPC: G02B5/30 ,  H01S5/068 ,  H01S5/0687 ,  G01J1/42 ,  H01S5/024

CPC classification number: G02B5/3083 ,  G01J1/4228 ,  H01S5/02415 ,  H01S5/068 ,  H01S5/0687

Abstract: A wavelength locker for use with tunable optical devices may include an etalon, a polarization beam splitter, and a first and second detector. The etalon may be positioned to receive a first beam and may include a first birefringent crystal having a first optical axis and a second birefringent crystal having a second optical axis. The first birefringent crystal may be coupled to the second birefringent crystal such that the first optical axis and the second optical axis are orthogonal to one another.

公开(公告)号：US09625650B2

公开(公告)日：2017-04-18

申请号：US14458689

申请日：2014-08-13

Applicant: Finisar Corporation

Inventor： Tengda Du ,  Jack Xu

IPC: G02B6/27 ,  G02B6/42 ,  G02F1/09

CPC classification number: G02B6/2746 ,  G02B6/272 ,  G02B6/2773 ,  G02B6/4246 ,  G02F1/093

Abstract: An optical circulator integrated into a transceiver for bi-directional communication may include a core configured to pass a transmission signal in a transmit direction and a received signal in a receive direction. The optical circulator may include an input port optically coupled to the core. The input port may be configured to deliver the transmission signal to the core. The optical circulator may include an output port optically coupled to the core. The output port may be configured to receive the received signal from the core. The optical circulator may additionally include a network port optically coupled to the core. The network port may be configured to receive the transmission signal from the core and deliver the transmission signal to a fiber optic cable. The network port may be configured to receive the received signal from the fiber optic cable and deliver the received signal to the core.

公开(公告)号：US09520943B2

公开(公告)日：2016-12-13

申请号：US14644019

申请日：2015-03-10

Applicant: FINISAR CORPORATION

Inventor： Samir Sheth ,  Jonathan P. King ,  T.H. Ola Sjolund ,  Xiaojie Xu ,  Tengda Du ,  Steffen Koehler

IPC: H04B10/12 ,  H04B10/25 ,  G02B6/43 ,  G02B6/42 ,  H04B10/27 ,  H04B10/2581 ,  H04J14/04

CPC classification number: H04B10/2504 ,  G02B6/4296 ,  G02B6/43 ,  H04B10/2581 ,  H04B10/27 ,  H04J14/04

Abstract: An example embodiment includes a system for communicating an optical signal. The system includes an optical transmitter and an optical receiver. The optical transmitter includes one or more lasers configured to produce a light signal and a transmitter optical sub assembly (TOSA) receptacle. The TOSA receptacle optically couples the lasers to an optical fiber and launches a quasi-multimode optical signal (quasi-MM signal) that includes at least one lower order mode optical signal and at least one higher order mode optical signal onto the optical fiber. The optical receiver is connected to the optical fiber via a receiver optical sub assembly (ROSA) receptacle. The optical receiver is configured to receive the quasi-MM signal and to substantially block the at least one higher order mode optical signal.

Abstract translation: 示例实施例包括用于传送光信号的系统。 该系统包括光发射机和光接收机。 光发射器包括被配置为产生光信号的一个或多个激光器和发射器光学子组件（TOSA）插座。 TOSA插座将激光器光耦合到光纤并且发射准多模光信号（准MM信号），其在光纤上包括至少一个低阶模式光信号和至少一个高阶模式光信号。 光接收器通过接收器光学子组件（ROSA）插座连接到光纤。 光接收器被配置为接收准MM信号并且基本上阻挡至少一个高阶模式光信号。

公开(公告)号：US20160269808A1

公开(公告)日：2016-09-15

申请号：US15067000

申请日：2016-03-10

Applicant: FINISAR CORPORATION

Inventor： Tengda Du ,  Xiaojie Xu

IPC: H04Q11/00 ,  H04B10/50

CPC classification number: H04B10/503 ,  H04B10/506 ,  H04J14/06

Abstract: Embodiments described herein include a multichannel transmitter optical subassembly that includes a plurality of lasers and a signal combiner. The plurality of lasers may be configured to emit light each with a different one of a plurality of light signals, each of the plurality of light signals having a wavelength within one of a plurality of wavelength bands. The signal combiner may be disposed relative to the plurality of lasers to receive the plurality of light signals. The signal combiner may include at least one surface having an optical coating that reflects at least one of the light signals of the plurality of light signals and transmits at least one of the light signals of the plurality of light signals.

Abstract translation: 本文描述的实施例包括多通道发射机光学子组件，其包括多个激光器和信号组合器。 多个激光器可以被配置为发射各自具有多个光信号中的不同一个的光，多个光信号中的每一个具有在多个波长带之一内的波长。 信号组合器可以相对于多个激光器设置以接收多个光信号。 信号组合器可以包括具有反射多个光信号的光信号中的至少一个的光学涂层的至少一个表面，并且透射多个光信号中的至少一个光信号。

公开(公告)号：US20150256256A1

公开(公告)日：2015-09-10

申请号：US14644019

申请日：2015-03-10

Applicant: FINISAR CORPORATION

Inventor： Samir Sheth ,  Jonathan P. King ,  T.H. Ola Sjolund ,  Xiaojie Xu ,  Tengda Du ,  Steffen Koehler

IPC: H04B10/25 ,  G02B6/42 ,  H04B10/27 ,  G02B6/43

CPC classification number: H04B10/2504 ,  G02B6/4296 ,  G02B6/43 ,  H04B10/2581 ,  H04B10/27 ,  H04J14/04

Abstract: An example embodiment includes a system for communicating an optical signal. The system includes an optical transmitter and an optical receiver. The optical transmitter includes one or more lasers configured to produce a light signal and a transmitter optical sub assembly (TOSA) receptacle. The TOSA receptacle optically couples the lasers to an optical fiber and launches a quasi-multimode optical signal (quasi-MM signal) that includes at least one lower order mode optical signal and at least one higher order mode optical signal onto the optical fiber. The optical receiver is connected to the optical fiber via a receiver optical sub assembly (ROSA) receptacle. The optical receiver is configured to receive the quasi-MM signal and to substantially block the at least one higher order mode optical signal.

Abstract translation: 示例实施例包括用于传送光信号的系统。 该系统包括光发射机和光接收机。 光发射器包括被配置为产生光信号的一个或多个激光器和发射器光学子组件（TOSA）插座。 TOSA插座将激光器光耦合到光纤并且启动准光多模光信号（准MM信号），其包括至少一个低阶模式光信号和至少一个高阶模光信号到光纤上。 光接收器通过接收器光学子组件（ROSA）插座连接到光纤。 光接收器被配置为接收准MM信号并且基本上阻挡至少一个高阶模式光信号。