公开(公告)号：US11002911B2

公开(公告)日：2021-05-11

申请号：US15656331

申请日：2017-07-21

Applicant: Skorpios Technologies, Inc.

Inventor： Majid Sodagar ,  Wenyi Wang ,  Changyi Li ,  Guoliang Li ,  Murtaza Askari ,  Yi Wang

IPC: G02B6/27 ,  G02B6/122 ,  G02F1/09 ,  G02B6/126 ,  G02B6/12

Abstract: A polarization-independent, optical circulator is formed in silicon photonics. The polarization-independent, optical circulator uses an optical splitter having two couplers and two waveguides joining the two couplers. One of the two waveguides is thinner than the other to create a large effective index difference between TE and TM modes transmitted through the one waveguide. Polarization rotators, including reciprocal and/or non-reciprocal rotators, are further used to create the optical circulator.

公开(公告)号：US10895686B2

公开(公告)日：2021-01-19

申请号：US15968454

申请日：2018-05-01

Applicant: Skorpios Technologies, Inc.

Inventor： Damien Lambert ,  Guoliang Li ,  John Zyskind ,  Stephen B. Krasulick

IPC: G02B6/13 ,  G02B6/14 ,  G02B6/122 ,  G02B6/136 ,  G02B6/132 ,  G02B6/30 ,  G02B6/12

Abstract: A method of fabricating a waveguide mode expander includes providing a substrate including a waveguide, bonding a chiplet including multiple optical material layers in a mounting region adjacent an output end of the waveguide, and selectively removing portions of the chiplet to form tapered stages that successively increase in number and lateral size from a proximal end to a distal end of the chiplet. The first optical material layer supports an input mode substantially the same size as a mode exiting the waveguide. One or more of the overlying layers, when combined with the first layer, support a larger, output optical mode size. Each tapered stage of the mode expander is formed of a portion of a respective layer of the chiplet. The first layer and the tapered stages form a waveguide mode expander that expands an optical mode of light traversing the chiplet.

公开(公告)号：US10833480B2

公开(公告)日：2020-11-10

申请号：US16502929

申请日：2019-07-03

Applicant: Skorpios Technologies, Inc.

Inventor： John Y. Spann ,  John Zyskind

IPC: H01S5/00 ,  H01S5/30 ,  H01S5/343 ,  H01S5/323

Abstract: A method of fabricating a gain medium includes growing a p-type layer doped with zinc on a substrate, growing an undoped layer including one or both of InP or InGaAsP on the p-type layer, growing a region that includes multiple quantum wells (MQWs) on the undoped layer, and growing an n-type layer on the region. The undoped layer has a thickness that is sufficient to prevent Zn diffusion from the p-type layer into the region during subsequent growth or wafer fabrication steps.

公开(公告)号：US20200343883A1

公开(公告)日：2020-10-29

申请号：US16776352

申请日：2020-01-29

Applicant: Skorpios Technologies, Inc.

Inventor： Andrew Bonthron ,  Phuoc Nguyen ,  Viktor Novozhilov ,  Michael Nilsson ,  Wei-Min Kuo

IPC: H03K7/02 ,  H03K19/00 ,  H04B14/02 ,  H04L25/49

Abstract: A PAM (Pulse Amplitude Modulation) modulator driver is configured to receive a PAM input signal having N input amplitude levels and provide a PAM output signal having N output amplitude levels, where N is an integer. The PAM modulator driver circuit configured to electrically adjust amplitude levels in the PAM output signal.

公开(公告)号：US10742347B2

公开(公告)日：2020-08-11

申请号：US16224409

申请日：2018-12-18

Applicant: Skorpios Technologies, Inc.

Inventor： Guoliang Li ,  Murtaza Askari

IPC: H04J14/02 ,  G02B6/43 ,  H04B10/60 ,  G02B6/293 ,  G02B6/12 ,  G02B6/00 ,  H04B10/67 ,  G02B6/42 ,  G02B5/18

Abstract: An optical receiver, used in wavelength-division multiplexing, has multiple photodetectors per channel. The optical receiver comprises a demultiplexer to separate incoming light into different output waveguides, one output waveguide for each channel. A splitter is used in each output waveguide to split each output waveguide into two or more branches. A separate photodetector is coupled with each branch so that two or more photodetectors are used to measure each channel.

公开(公告)号：US20200169063A1

公开(公告)日：2020-05-28

申请号：US16502929

申请日：2019-07-03

Applicant: Skorpios Technologies, Inc.

Inventor： John Y. Spann ,  John Zyskind

IPC: H01S5/30 ,  H01L33/06

Abstract: A method of fabricating a gain medium includes growing a p-type layer doped with zinc on a substrate, growing an undoped layer including one or both of InP or InGaAsP on the p-type layer, growing a region that includes multiple quantum wells (MQWs) on the undoped layer, and growing an n-type layer on the region. The undoped layer has a thickness that is sufficient to prevent Zn diffusion from the p-type layer into the region during subsequent growth or wafer fabrication steps.

公开(公告)号：US20200124797A1

公开(公告)日：2020-04-23

申请号：US16428193

申请日：2019-05-31

Applicant: Skorpios Technologies, Inc.

Inventor： Guoliang Li ,  Damien Lambert ,  Nikhil Kumar

IPC: G02B6/14 ,  G02B6/30 ,  G02B6/136 ,  G02B6/132 ,  G02B6/122

Abstract: A waveguide mode expander couples a smaller optical mode in a semiconductor waveguide to a larger optical mode in an optical fiber. The waveguide mode expander comprises a shoulder and a ridge. In some embodiments, the ridge of the waveguide mode expander has a plurality of stages, the plurality of stages having different widths at a given cross section.

公开(公告)号：US20200076153A1

公开(公告)日：2020-03-05

申请号：US16374293

申请日：2019-04-03

Applicant: Skorpios Technologies, Inc.

Inventor： Hacene Chaouch ,  Guoliang Li

IPC: H01S3/10 ,  G02B6/125 ,  H01S5/02 ,  H01S5/0683 ,  H01S5/14 ,  H01S3/03 ,  H01S3/063 ,  H01S3/067 ,  H01S3/08 ,  H01S3/1055 ,  H01S5/06 ,  H01S5/12 ,  H01S5/30

Abstract: A tunable laser has a first mirror, a second mirror, a gain medium, and a directional coupler. The first mirror and the second mirror form an optical resonator. The gain medium and the directional coupler are, at least partially, in an optical path of the optical resonator. The first mirror and the second mirror comprise binary super gratings. Both the first mirror and the second mirror have high reflectivity. The directional coupler provides an output coupler for the tunable laser.

公开(公告)号：US10295746B2

公开(公告)日：2019-05-21

申请号：US16115104

申请日：2018-08-28

Applicant: Skorpios Technologies, Inc.

Inventor： Majid Sodagar ,  Murtaza Askari ,  Guoliang Li

IPC: G02B6/26 ,  G02B6/14 ,  G02B6/122 ,  G02B5/20 ,  G02B6/12 ,  G02F1/35 ,  G02F1/365

Abstract: An optical filter for attenuating higher-order modes in an optical waveguide includes a shoulder slab formed of a first material having a first index of refraction and disposed on a second material having a second index of refraction, the first index of refraction being higher than the second index of refraction. The shoulder slab defines a near end having a first width, an intermediate section, adjacent to the first end section, and a far end section, adjacent to the intermediate section and opposite the first end section along a direction of beam propagation. The optical filter also includes a waveguide ridge, formed of the first material and disposed atop the shoulder slab, that traverses the shoulder slab, and is configured to guide light of a fundamental mode along the direction of beam propagation from the near end section to the far end section.

公开(公告)号：US20190113680A1

公开(公告)日：2019-04-18

申请号：US16160706

申请日：2018-10-15

Applicant: Skorpios Technologies, Inc.

Inventor： Majid Sodagar ,  Stephen B. Krasulick ,  John Zyskind ,  Paveen Apiratikul ,  Luca Cafiero

IPC: G02B6/122 ,  H04B10/25 ,  H04B10/40 ,  G02B6/26

Abstract: A device for optical communication is described. The device comprises two transceivers integrated on one chip. A first transceiver can be used with existing optical-communication architecture. As a more advanced optical-communication architecture becomes adopted, the device can be switched from using the first transceiver to using a second transceiver to communicate using the more advanced optical-communication architecture.