公开(公告)号：US10461495B2

公开(公告)日：2019-10-29

申请号：US15910852

申请日：2018-03-02

申请人： Cisco Technology, Inc.

发明人： Dominic F. Siriani ,  Sean P. Anderson ,  Vipulkumar Patel

IPC分类号： H01S5/00 ,  H01S5/02 ,  H01S5/323 ,  H01S5/20 ,  H01S5/30 ,  H01S5/34 ,  H01S5/343

摘要： A method of creating a laser, comprising: bonding a III-V semiconductor material with a silicon substrate; removing excess III-V semiconductor material bonded with the substrate to leave a III-V semiconductor material base layer of a predetermined thickness bonded with the substrate; and after removing the excess III-V semiconductor material, epitaxially growing at least one layer on the III-V semiconductor material base layer, the at least one layer comprising a quantum dot layer.

公开(公告)号：US11695254B2

公开(公告)日：2023-07-04

申请号：US18053993

申请日：2022-11-09

申请人： Cisco Technology, Inc.

发明人： Dominic F. Siriani ,  Jock T. Bovington ,  Matthew J. Traverso

IPC分类号： H01S5/22 ,  H01S5/02 ,  H01S5/028

CPC分类号： H01S5/2206 ,  H01S5/021 ,  H01S5/028

摘要： An optical apparatus comprises a semiconductor substrate and a slab-coupled optical waveguide (SCOW) emitter disposed on the semiconductor substrate. The SCOW emitter comprises an optical waveguide comprising: a first region doped with a first conductivity type; a second region doped with a different, second conductivity type; and an optically active region disposed between the first region and the second region. The optically active region comprises a plurality of quantum dots.

公开(公告)号：US11539189B2

公开(公告)日：2022-12-27

申请号：US16242984

申请日：2019-01-08

申请人： Cisco Technology, Inc.

发明人： Dominic F. Siriani ,  Jock T. Bovington ,  Matthew J. Traverso

IPC分类号： H01S5/22 ,  H01S5/02 ,  H01S5/028

摘要： An optical apparatus comprises a semiconductor substrate and a slab-coupled optical waveguide (SCOW) emitter disposed on the semiconductor substrate. The SCOW emitter comprises an optical waveguide comprising: a first region doped with a first conductivity type; a second region doped with a different, second conductivity type; and an optically active region disposed between the first region and the second region. The optically active region comprises a plurality of quantum dots.

公开(公告)号：US11462885B2

公开(公告)日：2022-10-04

申请号：US16366756

申请日：2019-03-27

申请人： Cisco Technology, Inc.

发明人： Dominic F. Siriani ,  Vipulkumar K. Patel

IPC分类号： H01S5/10 ,  H01S5/026 ,  H03F3/20

摘要： A master oscillator power amplifier comprises a semiconductor laser formed on a substrate and configured to output an optical signal, and a semiconductor optical amplifier (SOA) formed on the substrate. The SOA comprises an optical waveguide having an optically active region, wherein the optical waveguide is configured to expand a mode size of the optical signal along at least two dimensions.

公开(公告)号：US10734788B2

公开(公告)日：2020-08-04

申请号：US15910345

申请日：2018-03-02

申请人： Cisco Technology, Inc.

发明人： Dominic F. Siriani ,  Sean P. Anderson ,  Vipulkumar Patel

IPC分类号： H01S5/343 ,  H01S5/02 ,  H01L21/68 ,  H01S5/34 ,  H01L21/02 ,  H01S5/022 ,  B82Y20/00 ,  H01S5/042 ,  H01S5/125 ,  H01S5/22 ,  H01S5/10

摘要： A wafer comprising: a silicon substrate; a base layer of a predetermined thickness of a III-V semiconductor material bonded with the silicon substrate; and at least one layer grown on the base layer to form a plurality of quantum dot lasers.

公开(公告)号：US10545291B1

公开(公告)日：2020-01-28

申请号：US16115432

申请日：2018-08-28

申请人： Cisco Technology, Inc.

发明人： Sean P. Anderson ,  Dominic F. Siriani ,  Jock T. Bovington ,  Matthew J. Traverso ,  Vipulkumar Patel

IPC分类号： G02B6/30 ,  G02B6/122 ,  G02B6/14 ,  G02B6/28 ,  G02B6/12

摘要： The embodiments herein describe an optical transmitter that integrates a SCOWA into a photonic chip that includes a modulator. The embodiments herein place the SCOWA between the laser and the modulator. To accommodate the large mode size of the waveguide in the SCOWA, the photonic chip includes a pair of spot size converters coupled to the input and output of the SCOWA. Rather than amplifying a modulated signal as is typical with an inline amplifier, the SCOWA amplifies a continuous wave (CW) optical signal generated by the laser which introduces less noise and improves the OSNR of the transmitter.

公开(公告)号：US11888290B2

公开(公告)日：2024-01-30

申请号：US18054030

申请日：2022-11-09

申请人： Cisco Technology, Inc.

发明人： Dominic F. Siriani ,  Kenneth J. Thomson

IPC分类号： H01S5/00 ,  H01S5/10 ,  H01S5/026 ,  H01S5/22 ,  H01S5/34 ,  H01S5/065 ,  H01S5/50

CPC分类号： H01S5/1028 ,  H01S5/026 ,  H01S5/0265 ,  H01S5/0651 ,  H01S5/0654 ,  H01S5/22 ,  H01S5/34 ,  H01S5/341 ,  H01S5/3412 ,  H01S5/50

摘要： An optical apparatus comprises a semiconductor substrate, and a supermode filtering waveguide (SFW) emitter disposed on the semiconductor substrate. The SFW emitter comprises a first optical waveguide, a spacer layer, and a second optical waveguide spaced apart from the first optical waveguide by the spacer layer. The second optical waveguide is evanescently coupled with the first optical waveguide and is configured, in conjunction with the first waveguide, to selectively propagate only a first mode of a plurality of optical modes. The SFW emitter further comprises an optically active region disposed in one of the first optical waveguide and the second optical waveguide.

公开(公告)号：US11245250B2

公开(公告)日：2022-02-08

申请号：US16853457

申请日：2020-04-20

申请人： Cisco Technology, Inc.

发明人： Dominic F. Siriani ,  Vipulkumar K. Patel

IPC分类号： H01S5/34 ,  H01S5/10 ,  H01S5/042 ,  H01S5/028 ,  H01S5/12

摘要： A quantum dot comb laser, is provided that comprises a first waveguide having a first width; and a second waveguide running above the first waveguide that includes: a quantum dot layer; a first region of a second width less than the first width; a second region connected to the first region and comprising a reflective grating; and a third region connected at a first end to the second region and at a second end to an output surface wherein the third region tapers from the second width at the first end to a third width, less than the second width, at the second end.

公开(公告)号：US11081856B2

公开(公告)日：2021-08-03

申请号：US16234105

申请日：2018-12-27

申请人： Cisco Technology, Inc.

发明人： Jock T. Bovington ,  Vipulkumar K. Patel ,  Dominic F. Siriani

IPC分类号： H01S5/02 ,  H01S5/042 ,  H01S5/343 ,  H01S5/40 ,  H01S5/34 ,  G02B6/42

摘要： A laser integrated photonic platform to allow for independent fabrication and development of laser systems in silicon photonics. The photonic platform includes a silicon substrate with an upper surface, one or more through silicon vias (TSVs) defined through the silicon substrate, and passive alignment features in the substrate. The photonic platform includes a silicon substrate wafer with through silicon vias (TSVs) defined through the silicon substrate, and passive alignment features in the substrate for mating the photonic platform to a photonics integrated circuit. The photonic platform also includes a III-V semiconductor material structure wafer, where the III-V wafer is bonded to the upper surface of the silicon substrate and includes at least one active layer forming a light source for the photonic platform.

公开(公告)号：US11073661B1

公开(公告)日：2021-07-27

申请号：US16751994

申请日：2020-01-24

申请人： Cisco Technology, Inc.

发明人： Dominic F. Siriani ,  Vipulkumar K. Patel ,  Matthew J. Traverso ,  Mark A. Webster

IPC分类号： G02B6/293

摘要： Aspects described herein include an optical waveguide emitter that includes a first optical waveguide and a second optical waveguide that are evanescently coupled and collectively configured to selectively propagate only a first mode of a plurality of optical modes. Each of the first optical waveguide and the second optical waveguide extend through an input waveguide section, a turning waveguide section, and an output waveguide section. One or more of the input waveguide section, the turning waveguide section, and the output waveguide section includes an optically active region. The optical waveguide emitter further includes a refractive index-increasing feature in the turning waveguide section.