公开(公告)号：US09847840B2

公开(公告)日：2017-12-19

申请号：US14215520

申请日：2014-03-17

Applicant: Finisar Corporation

Inventor： Xiaojie Xu ,  Mark Donovan

IPC: G02B6/42 ,  H04B10/50 ,  H01S5/40 ,  G02B6/32 ,  H01S5/022

CPC classification number: H04B10/503 ,  G02B6/32 ,  G02B6/4204 ,  G02B6/4208 ,  G02B6/4215 ,  G02B6/4249 ,  H01S5/02288 ,  H01S5/4087

Abstract: A laser module can include: a laser chip having a plurality of laser diodes; a focusing lens optically coupled to each of the plurality of distinct laser diodes; and a photonic integrated circuit (PIC) having a plurality of optical inlet ports optically coupled to the plurality of laser diodes through the focusing lens. The laser module can include an optical isolator optically coupled to the focusing lens and PIC and positioned between the focusing lens and PIC. The laser chip can include a fine pitch laser array. The laser module can include a plurality of optical fibers optically coupled to an optical outlet port of the PIC. The laser module can include a hermetic package containing the laser chip and having a single focusing lens positioned for the plurality of laser diodes to emit laser beams there through.

公开(公告)号：US20160131837A1

公开(公告)日：2016-05-12

申请号：US14938815

申请日：2015-11-11

Applicant: FINISAR CORPORATION

Inventor： Daniel Mahgerefteh ,  Bryan Park ,  Jianxiao Chen ,  Xiaojie Xu ,  Gilles P. Denoyer ,  Bernd Huebner

IPC: G02B6/122 ,  G02B6/32 ,  G02B6/42 ,  G02B6/12 ,  G02B6/136 ,  G02B6/30 ,  G02B6/14 ,  G02B6/293

CPC classification number: G02B6/1228 ,  G02B6/1221 ,  G02B6/1223 ,  G02B6/124 ,  G02B6/125 ,  G02B6/126 ,  G02B6/136 ,  G02B6/2726 ,  G02B6/2773 ,  G02B6/305 ,  G02B6/4208 ,  G02B6/4215 ,  G02B2006/12038 ,  G02B2006/12061 ,  G02B2006/12069 ,  G02B2006/12097 ,  G02B2006/12121 ,  G02B2006/12123 ,  G02B2006/12147 ,  G02B2006/12157 ,  G02B2006/12164

Abstract: In an example, a coupled system includes a first waveguide, at least one second waveguide, and an interposer. The first waveguide has a first refractive index n1 and a tapered end. The at least one second waveguide each has a second refractive index n2. The interposer includes a third waveguide having a third refractive index n3 and a coupler portion, where n1>n2>n3. The tapered end of the first waveguide is adiabatically coupled to a coupler portion of one of the at least one second waveguide. A tapered end of one of the at least one second waveguide is adiabatically coupled to the coupler portion of the third waveguide of the interposer. The coupled system is configured to adiabatically couple light between the first waveguide and the at least one second waveguide and between the at least one second waveguide and the third waveguide.

Abstract translation: 在一个示例中，耦合系统包括第一波导，至少一个第二波导和插入器。 第一波导具有第一折射率n1和锥形端。 所述至少一个第二波导各自具有第二折射率n2。 插入器包括具有第三折射率n3和耦合器部分的第三波导，其中n1> n2> n3。 第一波导的锥形端绝热地耦合到至少一个第二波导中的一个的耦合器部分。 所述至少一个第二波导中的一个的锥形端绝热地耦合到所述插入器的所述第三波导的耦合器部分。 耦合系统被配置为在第一波导和至少一个第二波导之间以及在至少一个第二波导和第三波导之间绝热耦合光。

公开(公告)号：US10812181B2

公开(公告)日：2020-10-20

申请号：US16193892

申请日：2018-11-16

Applicant: Finisar Corporation

Inventor： Xiaojie Xu ,  Bernd Huebner ,  Rafik Ward ,  Martin Huibert Kwakernaak

IPC: H04B10/032 ,  H04B10/079 ,  H04B10/50

Abstract: An embodiment includes an optical transmitter. An optical transmitter may include a primary laser for transmitting a primary optical signal and a backup laser for transmitting a backup optical signal. The optical transmitter may further include a photonic integrated circuit (PIC). The PIC may include at least one input port configured to receive the primary optical signal from the primary laser and the backup optical signal from the backup laser. The PIC may also include at least one output port configured to receive each of the primary optical signal and the backup optical signal. The optical transmitter may be configured to activate the backup laser upon determining that the primary laser has failed or is failing.

公开(公告)号：US10795170B2

公开(公告)日：2020-10-06

申请号：US16193737

申请日：2018-11-16

Applicant: Finisar Corporation

Inventor： Tengda Du ,  Xiaojie Xu

IPC: H04J14/02 ,  G02B27/10 ,  G02B27/12 ,  H04J14/00 ,  G02B6/293

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：US20200162153A1

公开(公告)日：2020-05-21

申请号：US16193892

申请日：2018-11-16

Applicant: Finisar Corporation

Inventor： Xiaojie Xu ,  Bernd Huebner ,  Rafik Ward ,  Martin Huibert Kwakernaak

IPC: H04B10/032 ,  H04B10/50 ,  H04B10/079

Abstract: An embodiment includes an optical transmitter. An optical transmitter may include a primary laser for transmitting a primary optical signal and a backup laser for transmitting a backup optical signal. The optical transmitter may further include a photonic integrated circuit (PIC). The PIC may include at least one input port configured to receive the primary optical signal from the primary laser and the backup optical signal from the backup laser. The PIC may also include at least one output port configured to receive each of the primary optical signal and the backup optical signal. The optical transmitter may be configured to activate the backup laser upon determining that the primary laser has failed or is failing.

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：US10284301B2

公开(公告)日：2019-05-07

申请号：US15847824

申请日：2017-12-19

Applicant: FINISAR CORPORATION

Inventor： Xiaojie Xu ,  Mark Donovan

IPC: G02B6/42 ,  H04B10/50 ,  H01S5/022 ,  G02B6/32 ,  H01S5/40

Abstract: A laser module can include: a laser chip having a plurality of laser diodes; a focusing lens optically coupled to each of the plurality of distinct laser diodes; and a photonic integrated circuit (PIC) having a plurality of optical inlet ports optically coupled to the plurality of laser diodes through the focusing lens. The laser module can include an optical isolator optically coupled to the focusing lens and PIC and positioned between the focusing lens and PIC. The laser chip can include a fine pitch laser array. The laser module can include a plurality of optical fibers optically coupled to an optical outlet port of the PIC. The laser module can include a hermetic package containing the laser chip and having a single focusing lens positioned for the plurality of laser diodes to emit laser beams there through.

公开(公告)号：US10067303B1

公开(公告)日：2018-09-04

申请号：US15408352

申请日：2017-01-17

Applicant: FINISAR CORPORATION

Inventor： Jianxiao Chen ,  Xiaojie Xu ,  Bernd Huebner

IPC: G02B6/42 ,  G02B6/34

Abstract: A transceiver system may include a laser and a silicon optical grating. The laser may be configured to emit a laser beam at an output of the laser. The laser beam may have a non-circular elliptical mode profile. The silicon grating may be configured to exhibit a mode profile having a shape corresponding to the non-circular elliptical mode profile of the laser beam.

公开(公告)号：US09995892B2

公开(公告)日：2018-06-12

申请号：US15611713

申请日：2017-06-01

Applicant: Finisar Corporation

Inventor： Xiaojie Xu

IPC: G02B6/42 ,  G02B6/34 ,  G02B6/30 ,  G02B6/44 ,  G02B6/122 ,  G02B6/12 ,  G02B6/38 ,  H04B10/50 ,  H04B10/60 ,  H04B10/80

CPC classification number: G02B6/4246 ,  G02B6/12004 ,  G02B6/122 ,  G02B6/30 ,  G02B6/34 ,  G02B6/3893 ,  G02B6/4209 ,  G02B6/421 ,  G02B6/4214 ,  G02B6/423 ,  G02B6/4256 ,  G02B6/428 ,  G02B6/4281 ,  G02B6/4292 ,  G02B6/4403 ,  G02B2006/12061 ,  G02B2006/12102 ,  G02B2006/12114 ,  G02B2006/12121 ,  H04B10/50 ,  H04B10/60 ,  H04B10/801

Abstract: An optical assembly may include a platform disposed within a housing that has a limited space. The platform may be tilted by a first angle to fit a fiber array into the limited space of the housing. The optical assembly may also include a silicon photonics device mounted on the tilted platform. The silicon photonics device may include a grating coupler. The optical assembly may also include the fiber array directly coupled to the grating coupler on the silicon photonics device at a coupling position that deviates from a vertical coupling position by a second angle.

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.