公开(公告)号：US12253716B1

公开(公告)日：2025-03-18

申请号：US16915315

申请日：2020-06-29

Applicant: Acacia Communications, Inc.

Inventor： Long Chen

IPC: G02B6/125 ,  G02B6/12

Abstract: In one aspect, the disclosure relates to an apparatus including a photonic integrated circuit (PIC) including an optical network including V optical output channels and U optical input ports, wherein a selectable subset of the U optical input ports can be connected to L lasers, wherein L is less than or equal to U, and wherein the PIC is operable to output light on some or all of the V optical output channels in response to different number of active lasers connected to the U optical input ports.

公开(公告)号：US12181583B1

公开(公告)日：2024-12-31

申请号：US17712264

申请日：2022-04-04

Applicant: Acacia Communications, Inc.

Inventor： Christopher Doerr ,  Long Chen

IPC: G01S17/89 ,  G01S7/481 ,  G01S17/10 ,  G01S17/42 ,  H01S5/00

Abstract: A method for scanning a scene is disclosed. According to the method, light is transmitted by a transmitter through a transmitter surface grating array, as a first elliptical pattern in a first lateral direction. Light is received by a receiver through a receiver surface grating array, from an area of a second elliptical pattern. The received light is reflected from the first elliptical pattern. The first elliptical pattern is orthogonal to the second elliptical pattern. The first elliptical pattern overlaps with the second elliptical pattern.

公开(公告)号：US12164150B2

公开(公告)日：2024-12-10

申请号：US17373576

申请日：2021-07-12

Applicant: Acacia Communications, Inc.

Inventor： Li Chen ,  Long Chen ,  Christopher Doerr

IPC: G02B6/132 ,  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.

公开(公告)号：US11968035B1

公开(公告)日：2024-04-23

申请号：US17393102

申请日：2021-08-03

Applicant: Acacia Communications, Inc.

Inventor： Long Chen

IPC: H04J14/06 ,  G02B27/28 ,  G02F1/21 ,  H04B10/50 ,  H04B10/60 ,  H04J14/02

CPC classification number: H04J14/06 ,  G02B27/283 ,  G02B27/286 ,  G02F1/212 ,  H04B10/50 ,  H04B10/60 ,  H04J14/02

Abstract: In part, in one aspect, the disclosure relates to a system including an integrated optical multiplexer. The integrated optical multiplexer may include a plurality of optical inputs configured and constructed to receive input optical signals; two or more stages of multiplexing in a cascading configuration, wherein the two or more stages of multiplexing are divided into wavelength stages and a last stage, wherein each of the wavelength stages combine subsets of input optical signals by wavelength, the last stage combines input optical signals by polarization using a polarization beam combiner, and at a combined output of the integrated optical multiplexer a first subset of the input optical signals have a different polarization than a second subset of the input optical signals.

公开(公告)号：US11353666B2

公开(公告)日：2022-06-07

申请号：US16441775

申请日：2019-06-14

Applicant: Acacia Communications, Inc.

Inventor： Long Chen ,  Christopher Doerr ,  Li Chen

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

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：US11294061B1

公开(公告)日：2022-04-05

申请号：US16104872

申请日：2018-08-17

Applicant: Acacia Communications, Inc.

Inventor： Christopher Doerr ,  Long Chen

IPC: G01S17/89 ,  G01S7/481 ,  G01S17/10 ,  G01S17/42 ,  H01S5/00

Abstract: An apparatus for scanning a scene comprising a light transmitter including a one-dimensional phased array; wherein the light transmitter is fed by a frequency swept scanning laser; and a light receiver including a one-dimensional phased array; the one-dimensional phased array of the light receiver disposed orthogonally to the one-dimensional phased array of the transmitter; wherein light received by the light receiver is enabled to be interfered with light from the frequency swept scanning laser.

公开(公告)号：US10964605B1

公开(公告)日：2021-03-30

申请号：US16741089

申请日：2020-01-13

Applicant: Acacia Communications, Inc.

Inventor： Diedrik Vermeulen ,  Long Chen ,  Christopher Doerr

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

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

公开(公告)号：US10714894B1

公开(公告)日：2020-07-14

申请号：US15938398

申请日：2018-03-28

Applicant: ACACIA COMMUNICATIONS, INC.

Inventor： Christopher Doerr ,  Li Chen ,  Long Chen

IPC: H01S5/14 ,  H01S5/062 ,  H01S5/10 ,  H01S5/024 ,  H01S5/30 ,  H01S5/06

Abstract: In a first embodiment, an external cavity tunable laser, comprising a silicon photonics circuit comprising one or more resonators having one or more p-i-n junctions; wherein a voltage is applied to one or more of the p-i-n junctions. In a second embodiment, a method of operating an external cavity tunable laser, comprising sweeping out free-carriers from a resonator of the tunable laser by applying a voltage to a p-i-n junction of a waveguide of the resonator.

公开(公告)号：US10268055B1

公开(公告)日：2019-04-23

申请号：US16215717

申请日：2018-12-11

Applicant: Acacia Communications, Inc.

Inventor： Christopher Doerr ,  Long Chen ,  John Heanue ,  Momchil T. Mihnev

IPC: G02F1/01

Abstract: A method for making an apparatus, a system, and apparatus, the apparatus and system each comprising a substrate with a top side, wherein the substrate has a set of cavities in the top side of the substrate, wherein the substrate has a set of conductive elements on the top side of the substrate arranged to electrically couple with a set of conductive elements of a photonic integrated circuit (PIC), wherein each cavity of the set of cavities when coupled to the PIC creates a surface tension when exposed to an underfill to cause the underfill to flow around each cavity.

公开(公告)号：US10222566B1

公开(公告)日：2019-03-05

申请号：US14991242

申请日：2016-01-08

Applicant: Acacia Communications, Inc.

Inventor： Christopher Doerr ,  Long Chen

IPC: G02B6/42 ,  G02B6/30

Abstract: A photonic integrated circuit (PIC) coupled to a substrate may be aligned with receptacles having guide pin structures configured to receive guide pins attached to a fiber assembly. The receptacles may be affixed to a surface of the substrate and/or the PIC to permit the fiber assembly to be removed during a solder reflow process while maintaining the alignment of the fiber assembly to the PIC when reconnected following the solder reflow process.