公开(公告)号：US20220308296A1

公开(公告)日：2022-09-29

申请号：US17833299

申请日：2022-06-06

Applicant: Acacia Communications, Inc.

Inventor： Long Chen ,  Christopher Doerr ,  Li Chen

IPC: G02B6/42 ,  G02B6/293 ,  G02B6/12

Abstract: An integrated wavelength division multiplexer is described. The integrated wavelength division multiplexer may include a first waveguide core defining a first propagation axis and configured to guide light of a first wavelength and light of a second wavelength, and a second waveguide core defining a second propagation axis and configured to guide the light of the second wavelength. A first portion of the second propagation axis for which the first waveguide core and second waveguide core may be overlapping is oriented at a non-zero angle relative to the first propagation axis. The first waveguide core and second waveguide core may be configured relative to each other to adiabatically couple the light of the second wavelength between the first and second waveguide cores.

公开(公告)号：US10895690B1

公开(公告)日：2021-01-19

申请号：US16420655

申请日：2019-05-23

Applicant: Acacia Communications, Inc.

Inventor： Christopher Doerr ,  Li Chen ,  Long Chen

IPC: G02B6/12 ,  G02B6/35 ,  G02B6/42 ,  G02B6/26

Abstract: Photonic integrated circuits including controllable cantilevers are described. Such photonic integrated circuits may be used in connection with other optical devices, in which light is transferred between the photonic integrated circuit and one of these optical device. The photonic integrated circuit may comprise an optical waveguide having an end disposed proximate to a facet of the cantilever. The orientation of the cantilever may be actively controlled in one or two dimensions, thus adjusting the orientation of the optical waveguide. Actuation of the cantilever may be performed, for example, thermally and/or electrostatically. Orientation of the cantilever may be performed in such a way to align the optical waveguide with an optical device.

公开(公告)号：US10554014B1

公开(公告)日：2020-02-04

申请号：US15857997

申请日：2017-12-29

Applicant: ACACIA COMMUNICATIONS, INC.

Inventor： Christopher Doerr ,  Li Chen ,  Long Chen

IPC: H01S3/063 ,  H01S5/042 ,  H01S5/026 ,  H01S5/068 ,  H01S5/10 ,  H01S3/083 ,  H01S3/30 ,  H01S3/106 ,  H01S3/137

Abstract: A method and apparatus for removing free carriers from a waveguide using a p type semiconductor and an n type semiconductor connected by a short.

公开(公告)号：US10535571B1

公开(公告)日：2020-01-14

申请号：US15903586

申请日：2018-02-23

Applicant: Acacia Communications, Inc.

Inventor： Diedrik Vermeulen ,  Long Chen ,  Christopher Doerr

IPC: G02B6/12 ,  H01L21/66 ,  G02B6/122 ,  G02B6/30 ,  G01M11/00 ,  G02B6/34

Abstract: Disclosed herein are methods, structures, and devices for wafer scale testing of photonic integrated circuits.

公开(公告)号：US10416381B1

公开(公告)日：2019-09-17

申请号：US15852982

申请日：2017-12-22

Applicant: Acacia Communications, Inc.

Inventor： Long Chen ,  Christopher Doerr

IPC: G02B6/12 ,  G02B6/122 ,  G02B6/30 ,  G02B6/136

Abstract: A facet optical coupler, and techniques for forming a facet optical coupler, that includes a waveguide disposed in a trench of a substrate are described. The substrate may be a silicon substrate in some embodiments. A cladding material is first disposed in the trench, and the waveguide is disposed on the cladding material in the trench.

公开(公告)号：US20180341065A1

公开(公告)日：2018-11-29

申请号：US16035563

申请日：2018-07-13

Applicant: Acacia Communications, Inc.

Inventor： Long Chen

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

CPC classification number: G02B6/305 ,  G02B6/12002 ,  G02B6/1228 ,  G02B6/136 ,  G02B6/14 ,  G02B2006/12061 ,  G02B2006/121 ,  G02B2006/12152 ,  G02B2006/12195

Abstract: Techniques for forming a facet optical coupler that includes a waveguide formed over a trench of a silicon substrate are described. The trench is formed in a silicon substrate and then filled with a dielectric material. The waveguide is patterned on the dielectric material over the trench such that the waveguide is disposed a distance from the first surface. A first end of the waveguide has a first size and a second end of the waveguide distal the first end has a second size different than the first size. A material of the waveguide and the first size define a mode size of the waveguide.

公开(公告)号：US20180041282A1

公开(公告)日：2018-02-08

申请号：US15228462

申请日：2016-08-04

Applicant: Acacia Communications, Inc.

Inventor： Long Chen ,  Christopher Doerr

IPC: H04B10/50 ,  H04B10/035

CPC classification number: H04B10/501 ,  H04B10/035 ,  H04B10/40 ,  H04B10/50 ,  H04B10/5057

Abstract: Optical transceivers comprising optical loopback circuits are described. The optical transceiver may comprise a housing, which may host a transmitter, a receiver and the optical loopback circuit. The optical loopback circuit may be configured to route at least a portion of a modulated optical signal from the transmitter to the receiver. The optical loopback circuit may comprise tap couplers and/or optical switches. The optical transceiver may be switched between a normal mode and a calibration mode. The optical transceiver may maintain the same fiber connections even when the optical transceiver is switched from one mode to another. The transmitter, the receiver and the optical loopback circuit may be disposed on a common substrate, or on separate substrates.

公开(公告)号：US20180003899A1

公开(公告)日：2018-01-04

申请号：US15639018

申请日：2017-06-30

Applicant: Acacia Communications, Inc.

Inventor： Christopher Doerr ,  Li Chen ,  Long Chen

IPC: G02B6/35 ,  G02B6/26 ,  G02B6/12

CPC classification number: G02B6/3502 ,  G02B6/12 ,  G02B6/262 ,  G02B6/3566 ,  G02B6/4225 ,  G02B6/428

Abstract: Photonic integrated circuits including controllable cantilevers are described. Such photonic integrated circuits may be used in connection with other optical devices, in which light is transferred between the photonic integrated circuit and one of these optical device. The photonic integrated circuit may comprise an optical waveguide having an end disposed proximate to a facet of the cantilever. The orientation of the cantilever may be actively controlled in one or two dimensions, thus adjusting the orientation of the optical waveguide. Actuation of the cantilever may be performed, for example, thermally and/or electrostatically. Orientation of the cantilever may be performed in such a way to align the optical waveguide with an optical device.

公开(公告)号：US09671628B2

公开(公告)日：2017-06-06

申请号：US14298859

申请日：2014-06-06

Applicant: ACACIA COMMUNICATIONS INC.

Inventor： Long Chen

IPC: G02F1/025 ,  G02B6/134 ,  G02F1/015

Abstract: Disclosed are designs and methods of fabrication of silicon carrier-depletion based electro-optical modulators having doping configurations that produce modulators exhibiting desirable modulation efficiency, optical absorption loss and bandwidth characteristics. The disclosed method of fabrication of a modulator having such doping configurations utilizes counter doping to create narrow regions of relatively high doping levels near a waveguide center.

公开(公告)号：US20220011507A1

公开(公告)日：2022-01-13

申请号：US17373576

申请日：2021-07-12

Applicant: Acacia Communications, Inc.

Inventor： Li Chen ,  Long Chen ,  Christopher Doerr

IPC: G02B6/122 ,  G02B6/136

Abstract: In part, in one aspect, the disclosure relates to a method for passivating a waveguide of an optical circuit. The method includes etching a suspended waveguide in the optical circuit; the suspended waveguide having a top surface, a bottom surface, and side surfaces; and covering the top surface and side surfaces of the suspended waveguide with a passivation coating having a thickness that ranges from between about 10 nm to about 20 nm. In one embodiment, the method further includes removing one or more coatings from a portion of the optical circuit. The disclosure also relates to various passivated optical silicon circuit embodiments.