公开(公告)号：US09874691B2

公开(公告)日：2018-01-23

申请号：US15208170

申请日：2016-07-12

Applicant: Finisar Corporation

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

IPC: G02B6/00 ,  G02B6/122 ,  G02B6/136 ,  G02B6/124 ,  G02B6/126 ,  G02B6/27 ,  G02B6/125 ,  G02B6/30 ,  G02B6/12 ,  G02B6/42

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 silicon (Si) core having first refractive index n1 and a tapered end. The at least one second waveguide each has a silicon nitride (SiN) core having 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 third waveguide of the interposer has an optical mode size that is similar to the mode size of a standard single mode optical fiber.

公开(公告)号：US20170179680A1

公开(公告)日：2017-06-22

申请号：US15384270

申请日：2016-12-19

Applicant: Finisar Corporation

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

IPC: H01S5/026 ,  G02B6/124 ,  G02B6/122 ,  H01S5/22 ,  H01S5/042 ,  H01S5/30 ,  H01S5/187 ,  H01S5/00

CPC classification number: H01S5/026 ,  G02B6/12004 ,  G02B6/122 ,  G02B6/1228 ,  G02B6/124 ,  G02B6/2746 ,  G02B2006/12147 ,  H01S5/005 ,  H01S5/0064 ,  H01S5/02252 ,  H01S5/1032 ,  H01S5/1035 ,  H01S5/12 ,  H01S5/125 ,  H01S5/187 ,  H01S5/2027 ,  H01S5/22 ,  H01S5/3013

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：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：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：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：US09405071B2

公开(公告)日：2016-08-02

申请号：US14709050

申请日：2015-05-11

Applicant: FINISAR CORPORATION

Inventor： Yasuhiro Matsui ,  Bernd Huebner ,  Charles B. Roxlo

IPC: G02F1/01 ,  G02F1/035 ,  G02B6/293 ,  H04J14/02

CPC classification number: G02B6/29355 ,  G02B6/2938 ,  H04J14/02

Abstract: In an embodiment, a delay line interferometer (DLI) multiplexer (MUX) includes a first stage and a second stage. The first stage includes a first DLI and a second DLI. The first DLI includes a first left input, a first right input, and a first output and has a free spectral range (FSR) that is about four times a nominal channel spacing. The second DLI includes a second left input, a second right input, and a second output and has an FSR that is about four times the nominal channel spacing. The second stage is coupled to the first stage and includes a third DLI. The third DLI includes a third left input optically coupled to the first output, a third right input optically coupled to the second output, and a third output. An FSR of the third DLI is about two times the nominal channel spacing.

公开(公告)号：US20190243066A1

公开(公告)日：2019-08-08

申请号：US16386171

申请日：2019-04-16

Applicant: FINISAR CORPORATION

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

IPC: G02B6/122 ,  G02B6/27 ,  G02B6/125 ,  G02B6/126 ,  G02B6/136 ,  G02B6/124

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 photonic system includes a Si PIC with a Si substrate, a SiO2 box formed on the Si substrate, a first layer, and a second layer. The first layer is formed above the SiO2 box and includes a SiN waveguide with a coupler portion at a first end and a tapered end opposite the first end. The second layer is formed above the SiO2 box and vertically displaced above or below the first layer. The second layer includes a Si waveguide with a tapered end aligned in two orthogonal directions with the coupler portion of the SiN waveguide such that the tapered end of the Si waveguide overlaps in the two orthogonal directions and is parallel to the coupler portion of the SiN waveguide. The tapered end of the SiN waveguide is configured to be adiabatically coupled to a coupler portion of an interposer waveguide.

公开(公告)号：US20190221994A1

公开(公告)日：2019-07-18

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: H01S5/026 ,  H01S5/00 ,  G02B6/12 ,  H01S5/187 ,  G02B6/124 ,  G02B6/122 ,  H01S5/10 ,  H01S5/22 ,  H01S5/30

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：US10243322B2

公开(公告)日：2019-03-26

申请号：US15384270

申请日：2016-12-19

Applicant: Finisar Corporation

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

IPC: G02B6/12 ,  H01S5/026 ,  H01S5/187 ,  G02B6/124 ,  H01S5/00 ,  H01S5/22 ,  H01S5/30 ,  G02B6/122 ,  H01S5/10 ,  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：US20170363808A1

公开(公告)日：2017-12-21

申请号：US15692793

申请日：2017-08-31

Applicant: FINISAR CORPORATION

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

IPC: G02B6/122 ,  G02B6/125 ,  G02B6/126 ,  G02B6/27 ,  G02B6/124 ,  G02B6/136 ,  G02B6/30 ,  G02B6/12 ,  G02B6/42

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 photonic system includes a Si PIC with a Si substrate, a SiO2 box formed on the Si substrate, a first layer, and a second layer. The first layer is formed above the SiO2 box and includes a SiN waveguide with a coupler portion at a first end and a tapered end opposite the first end. The second layer is formed above the SiO2 box and vertically displaced above or below the first layer. The second layer includes a Si waveguide with a tapered end aligned in two orthogonal directions with the coupler portion of the SiN waveguide such that the tapered end of the Si waveguide overlaps in the two orthogonal directions and is parallel to the coupler portion of the SiN waveguide. The tapered end of the SiN waveguide is configured to be adiabatically coupled to a coupler portion of an interposer waveguide.