公开(公告)号：US20150132013A1

公开(公告)日：2015-05-14

申请号：US14538781

申请日：2014-11-11

Applicant: ACACIA COMMUNICATIONS INC.

Inventor： Diedrik VERMEULEN

IPC: H04B10/532

CPC classification number: H04B10/5053 ,  H04B10/541 ,  H04B10/5561

Abstract: Disclosed are adaptive structures and methods for generating advanced modulation formats using multiple levels such as PAM-4, PAM-8 as well as regular OOK or PM OOK formats. Structures and methods disclosed include an unequal power splitter that may exhibit a fixed or tunable splitting ratio such that adaptive format(s) may be generated.

Abstract translation: 公开了用于使用多个级别产生高级调制格式的自适应结构和方法，例如PAM-4，PAM-8以及常规的OOK或PM OOK格式。 公开的结构和方法包括可以呈现固定或可调谐分裂比的不相等的功率分配器，使得可以产生自适应格式。

公开(公告)号：US20150063769A1

公开(公告)日：2015-03-05

申请号：US14475506

申请日：2014-09-02

Applicant: ACACIA COMMUNICATIONS INC.

Inventor： Christopher DOERR ,  Long CHEN

IPC: G02B6/10

CPC classification number: G02B6/122 ,  G02B6/134 ,  G02B2006/12097

Abstract: Disclosed are structures and methods directed to waveguide structures exhibiting improved device performance including improved attenuation of scattered light and/or transverse magnetic modes. In an illustrative embodiment according to the present disclosure, a rib waveguide structure including a rib overlying a slab waveguide (or superimposed thereon) is constructed wherein the slab waveguide is heavily doped at a distance from the rib which has a very low overlap with rib guided modes. Advantageously, such doping may be of the P-type or of the N-type, and dopants could be any of a number of known ones including—but not limited to—boron, phosphorous, etc.—or others that increase optical propagation loss. As may be appreciated, the doped regions advantageously absorb scattered light which substantially improves the structure's performance.Alternative illustrative embodiments of structures according to the present disclosure will include a metal deposited upon the slab waveguide at a distance from the rib such that scattered light is absorbed and the structure's performance is likewise enhanced.

Abstract translation: 公开的是涉及具有改进的器件性能的波导结构的结构和方法，包括散射光和/或横向磁模式的改进的衰减。 在根据本公开的说明性实施例中，构造了包括覆盖在平板波导（或叠加在其上）上的肋的肋波导结构，其中平板波导在与肋导向的一定距离处被重掺杂，肋与肋引导具有非常低的重叠 模式。 有利地，这种掺杂可以是P型或N型，并且掺杂剂可以是许多已知的掺杂物中的任何一种，包括但不限于硼，磷等，或者增加光传播损耗的其他 。 可以理解，掺杂区域有利地吸收散射光，这大大改善了结构的性能。 根据本公开的结构的替代示例性实施例将包括沉积在与肋相距一定距离处的平板波导上的金属，使得散射光被吸收并且结构的性能同样增强。

公开(公告)号：US20140064659A1

公开(公告)日：2014-03-06

申请号：US14012876

申请日：2013-08-28

Applicant: ACACIA COMMUNICATIONS INC.

Inventor： Christopher DOERR ,  Eric SWANSON ,  Jon STAHL ,  Diedrik VERMEULEN

IPC: G02B6/12

CPC classification number: G02B6/12 ,  G02B6/12004 ,  G02B6/42 ,  G02B6/423 ,  G02B6/428 ,  G02B6/43

Abstract: Disclosed herein are co-packaging structures, devices, and methods for integrating a photonic integrated circuit (PIC), an electronic integrated circuit including drivers and transimpedance amplifiers (TIAs) and an ASIC having analog-to-digital converters and a digital signal processor positioned on a common (the same) carrier thereby resulting in a compact coherent transceiver while lowering its cost.

Abstract translation: 本文公开了用于集成光子集成电路（PIC），包括驱动器和跨阻抗放大器（TIAs）的电子集成电路和具有模数转换器的ASIC和定位的数字信号处理器的共同封装结构，器件和方法 在相同的载体上，从而导致紧凑的相干收发器，同时降低其成本。

公开(公告)号：US20130343704A1

公开(公告)日：2013-12-26

申请号：US13928014

申请日：2013-06-26

Applicant: ACACIA COMMUNICATIONS INC.

Inventor： Christopher DOERR

IPC: G02B6/34 ,  G02B6/26

CPC classification number: G02B6/34 ,  G02B6/125 ,  G02B6/26 ,  G02B6/30 ,  G02B2006/12104 ,  G02B2006/12107

Abstract: Disclosed herein are techniques, methods, structures and apparatus for optically coupling optical waveguides and optical structures exhibiting different widths in which In which a focusing reflector is used to optically couple a relatively wide optical waveguide to a relatively narrow optical waveguide. An exemplary method according to the present disclosure comprises the steps of: providing the first waveguide that is 5 or more wavelengths in width; providing the second waveguide that is 3 or less wavelengths in width; coupling light emanating from the first waveguide to the second waveguide through the effect of a slab waveguide having a curved edge.

Abstract translation: 本文公开了用于光学耦合表现不同宽度的光波导和光学结构的技术，方法，结构和装置，其中使用聚焦反射器将相对宽的光波导光学耦合到相对窄的光波导。 根据本公开的示例性方法包括以下步骤：提供宽度为5或更大波长的第一波导; 提供宽度为3或更小波长的第二波导; 通过具有弯曲边缘的平板波导的作用耦合从第一波导发射到第二波导的光。

公开(公告)号：US20130343693A1

公开(公告)日：2013-12-26

申请号：US13928043

申请日：2013-06-26

Applicant: ACACIA COMMUNICATIONS INC.

Inventor： Christopher DOERR

IPC: G02F1/01

CPC classification number: G02F1/011 ,  G02F1/2255 ,  G02F1/2257 ,  G02F2201/126 ,  G02F2201/127

Abstract: Disclosed herein is a traveling-wave Mach-Zehnder modulator and method of operating same that advantageously exhibits a reduced optical insertion loss as compared with contemporary Mach-Zehnder structures. Such advantage comes at the modest expense of increased modulator length and increased RF loss.

Abstract translation: 本文公开了一种行进波马赫 - 曾德尔调制器及其操作方法，其与当代马赫 - 曾德尔结构相比有利地表现出减小的光插入损耗。 这样的优点在于增加调制器长度和增加RF损耗的适度费用。

公开(公告)号：US20130233824A1

公开(公告)日：2013-09-12

申请号：US13733118

申请日：2013-01-02

Applicant: ACACIA COMMUNICATIONS INC.

Inventor： Christopher DOERR

IPC: C03C15/00

CPC classification number: C03C15/00 ,  G02B6/00 ,  G02B6/12004 ,  G02B6/12007 ,  G02B6/1225 ,  G02B6/124 ,  G03F7/00

Abstract: A method for fabricating a grating coupler having a bottom mirror in a semiconductor wafer including etching a trench from a top surface of a wafer and around a grating coupler formed in the wafer; etching a void underneath the grating coupler; etching a via into the void from the backside of the wafer; and depositing a mirror on the bottom of the grating coupler. Alternatively, additional oxide may be deposited on the bottom of the grating coupler prior to the deposition of the mirror such that a desirable oxide thickness on the bottom is achieved.

Abstract translation: 一种用于制造在半导体晶片中具有底镜的光栅耦合器的方法，包括从晶片的顶表面蚀刻沟槽并围绕形成在晶片中的光栅耦合器; 蚀刻光栅耦合器下面的空隙; 将晶片从晶片的背面蚀刻到空隙中; 以及在光栅耦合器的底部上沉积反射镜。 或者，在沉积镜子之前，可以在光栅耦合器的底部上沉积另外的氧化物，使得实现底部上所需的氧化物厚度。

公开(公告)号：US12200090B1

公开(公告)日：2025-01-14

申请号：US18106047

申请日：2023-02-06

Applicant: Acacia Communications, Inc.

Inventor： Scott McLeod

IPC: G06F1/08 ,  H04L7/00

Abstract: Systems and methods are disclosed for a multiphase clock generation. An example method includes facilitating, by a phase interpolator (PI) circuit comprising a plurality of PIs, transfer of information across one or both of a transmit (TX) lane or a receive (RX) lane, wherein the transfer of information is based on a clock timing. The PI circuit receives, from a clock-and-data recovery (CDR) circuit, a plurality of input clock phases. The CDR circuit comprises a centrally located phase-locked loop (PLL) circuit and a plurality of multiphase generators. In some embodiments, each multiphase generator of the plurality of multiphase generators is adjacent to a respective PI of the plurality of PIs. Based on the plurality of input clock phases, the PI circuit adjusts, the clock timing for the transfer of information.

公开(公告)号：US12184301B1

公开(公告)日：2024-12-31

申请号：US17373884

申请日：2021-07-13

Applicant: Acacia Communications, Inc.

Inventor： Ian Dedic ,  Gavin Allen ,  Ramesh K. Singh

IPC: H03M1/46 ,  H02M3/337 ,  H03F3/30 ,  H03M1/12 ,  H04B1/16

Abstract: An apparatus, method, and system for converting a charge to a voltage.

公开(公告)号：US12081268B2

公开(公告)日：2024-09-03

申请号：US18094205

申请日：2023-01-06

Applicant: ACACIA COMMUNICATIONS, INC.

Inventor： Long Chen ,  Leonard Jan-Peter Ketelsen

IPC: H01S5/026 ,  G02B6/12 ,  G02B6/13 ,  H04B10/032 ,  H04B10/25 ,  H04B10/50 ,  H04J14/02

CPC classification number: H04B10/50 ,  H04B10/032 ,  H04B10/25 ,  H04J14/0254 ,  G02B6/12 ,  G02B6/13 ,  H01S5/0261 ,  H01S5/0262 ,  H01S5/0265

Abstract: Aspects of the present disclosure are directed to a photonic integrated circuit (PIC) having a resistivity-engineered substrate to suppress radio-frequency (RF) common-mode signals. In some embodiments, a semiconductor substrate is provided that comprises two portions having different levels of resistivity to provide both suppression of common mode signals, and reduction of RF absorption loss for non-common mode RF signals. In such embodiments, a bottom portion of the semiconductor substrate has a low resistivity to suppress common mode via RF absorption, while a top portion of the semiconductor substrate that is adjacent to conductors in the IC has a high resistivity to reduce RF loss.

公开(公告)号：US12004240B2

公开(公告)日：2024-06-04

申请号：US17972176

申请日：2022-10-24

Applicant: Acacia Communications, Inc.

Inventor： Pierre Humblet

IPC: H04W76/10 ,  H03M13/11 ,  H03M13/15 ,  H03M13/29 ,  H04L1/00 ,  H04W28/20 ,  H04W72/044 ,  H04W72/0453 ,  H04W72/21 ,  H04W72/23

CPC classification number: H04W76/10 ,  H03M13/2921 ,  H04L1/00 ,  H04L1/0041 ,  H04L1/0071 ,  H04W28/20 ,  H04W72/23 ,  H03M13/1102 ,  H03M13/1515 ,  H03M13/152 ,  H04W72/044 ,  H04W72/0453 ,  H04W72/21

Abstract: Techniques for performing forward error correction of data to be transmitted over an optical communications channel. The techniques include: receiving data bits; organizing the data bits into an arrangement having a plurality of blocks organized into rows and columns and into a plurality of strands including a first strand of blocks that includes a back portion comprising a first row of the plurality of blocks, and a front portion comprising blocks from at least two different columns in at least two different rows other than the first row of blocks; and encoding at least some of the data bits in the arrangement using a first error correcting code at least in part by generating first parity bits by applying the first error correcting code to first data bits in the front portion of the first strands and second data bits in the back portion of the first strand.