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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.
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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.
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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
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.
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公开(公告)号：US20200003953A1
公开(公告)日：2020-01-02
申请号：US16559474
申请日：2019-09-03
Applicant: FINISAR CORPORATION
Inventor： Bryan Park , Daniel Mahgerefteh , Zheng Yong , Joyce Kai See Poon
Abstract: A system may include a polarization rotator combiner. The polarization rotator combiner may include a first stage, a second stage, and a third stage. The first stage may receive a first component of light with a TE00 polarization and a second component of light with the TE00 polarization. The first stage may draw optical paths of the first and second components together. The second stage may receive the first component and the second component from the first stage. The second stage may convert the polarization of the second component from the TE00 polarization to a TE01 polarization. The third stage may receive the first component and the second component from the second stage. The third stage may convert polarization of the second component from the TE01 polarization to a TM00 polarization. The third stage may output the first component and output the second component.
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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
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.
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Patent Agency Ranking
公开(公告)号：US20190129096A1
公开(公告)日：2019-05-02
申请号：US16195804
申请日：2018-11-19
Applicant: FINISAR CORPORATION
Inventor： Daniel Mahgerefteh , Bryan Park
CPC classification number: G02B6/1228 , G02B6/125 , G02B6/2726 , G02B6/305 , G02B2006/12061 , G02B2006/1209 , G02B2006/12147
Abstract: An optical system includes a silicon (Si) substrate, a buried oxide (BOX) layer formed on the substrate, a silicon nitride (SiN) layer formed above the BOX layer, and a SiN waveguide formed in the SiN layer. In some embodiments, the optical system may additionally include an interposer waveguide adiabatically coupled to the SiN waveguide to form a SiN-interposer adiabatic coupler that includes at least the tapered section of the SiN waveguide, the optical system further including at least one of: a cavity formed in the Si substrate at least beneath the SiN-interposer adiabatic coupler or an oxide overlay formed between a top of a SiN core of the SiN waveguide and a bottom of the interposer waveguide. Alternatively or additionally, the optical system may additionally include a multimode Si—SiN adiabatic coupler that includes a SiN taper of a SiN waveguide and a Si taper of a Si waveguide.
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公开(公告)号：US10254477B2
公开(公告)日：2019-04-09
申请号：US15374856
申请日：2016-12-09
Applicant: FINISAR CORPORATION
Inventor： Daniel Mahgerefteh , Jared Mikkelsen
Abstract: An integrated optical component includes at least one input waveguide, at least one output waveguide; a first slab waveguide having a first refractive index, n1. The first slab waveguide may be disposed between at least one of the input waveguides and at least one of the output waveguides. The integrated optical component may further include a second slab waveguide having a second refractive index, n2. The integrated optical component may also include a third cladding slab having a third refractive index, n3. The third cladding slab may be disposed between the first slab and the second slab. The thickness of the second slab waveguide and the thickness of the third slab waveguide are adjustable to reduce a birefringence of the integrated optical component.
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公开(公告)号：US09385815B2
公开(公告)日：2016-07-05
申请号：US14617782
申请日：2015-02-09
Applicant: FINISAR CORPORATION
Inventor： Ilya Lyubomirsky , Yasuhiro Matsui , Daniel Mahgerefteh
IPC: H04B10/04 , H04B10/00 , H04B10/06 , H04B10/532 , H04J14/06
CPC classification number: H04B10/532 , H04J14/06
Abstract: In some examples, a transmit assembly is described that may include a first optical transmitter, a second optical transmitter, and a polarizing beam combiner. The first optical transmitter may be configured to emit a first optical data signal centered at a first frequency. The second optical transmitter may be configured to emit a second optical data signal centered at a second frequency offset from the first frequency by a nominal offset n. The polarizing beam combiner may be configured to generate a dual carrier optical data signal by polarization interleaving the first optical data signal with the second optical data signal. An output of the polarizing beam combiner may be configured to be communicatively coupled via an optical transmission medium to a polarization-insensitive receive assembly.
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公开(公告)号：US20150090864A1
公开(公告)日：2015-04-02
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: H04B10/40
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。
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公开(公告)号：US11156789B2
公开(公告)日：2021-10-26
申请号：US15929861
申请日：2020-05-26
Applicant: Finisar Corporation
Inventor： Daniel Mahgerefteh , Jin-Hyoung Lee , Shiyun Lin
IPC: G02B6/42 , G02B6/12 , G02B6/122 , G02B6/34 , H01S5/0225 , H01S5/02326 , G02B6/124 , H01S5/00 , H01S5/187
Abstract: An example system includes a grating coupled laser, a laser optical interposer (LOI), an optical isolator, and a light redirector. The grating coupled laser includes a laser cavity and a transmit grating optically coupled to the laser cavity. The transmit grating is configured to diffract light emitted by the laser cavity out of the grating coupled laser. The LOI includes an LOI waveguide with an input end and an output end. The optical isolator is positioned between the surface coupled edge emitting laser and the LOI. The light redirector is positioned to redirect the light, after the light passes through the optical isolator, into the LOI waveguide of the LOI.
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