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公开(公告)号：US10394058B1
公开(公告)日：2019-08-27
申请号：US16133591
申请日：2018-09-17
Applicant: ACACIA COMMUNICATIONS, INC.
Inventor： Diedrik Vermeulen , Christopher Doerr
Abstract: Optical modulators and modulation techniques for advanced optical modulation formats are described. An optical modulator may include two optical modulators in parallel optical paths, and optical powers in the two paths may be unequal. Polarization in the two paths may be orthogonal, and modulated outputs from each path may be combined to produce multilevel modulation formats.
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公开(公告)号：US10295750B2
公开(公告)日：2019-05-21
申请号：US16035563
申请日：2018-07-13
Applicant: Acacia Communications, Inc.
Inventor： Long Chen
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.
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公开(公告)号：US10031292B2
公开(公告)日：2018-07-24
申请号：US14991311
申请日：2016-01-08
Applicant: Acacia Communications, Inc.
Inventor： Long Chen
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.
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24.发明申请公开(公告)号：US20180203187A1
公开(公告)日：2018-07-19
申请号：US15870468
申请日：2018-01-12
Applicant: Acacia Communications, Inc.
Inventor： Christopher Doerr , Eric Swanson , Diedrik Vermeulen , Saeid Azemati , Jon Stahl
CPC classification number: G02B6/12 , G02B6/4269 , G02B6/428 , H01L2224/16225
Abstract: Disclosed herein are designs, structures and techniques for advanced packaging of multi-function photonic integrated circuits that allow such high-performance multi-function photonic integrated circuits to be co-packaged with a high-performance multi-function ASIC thereby significantly reducing strenuous interconnect challenges and lowering costs, power and size of the overall devices.
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公开(公告)号：US09939666B2
公开(公告)日：2018-04-10
申请号：US14298859
申请日：2014-06-06
Applicant: ACACIA COMMUNICATIONS INC.
Inventor： Long Chen
CPC classification number: G02F1/025 , G02B6/00 , G02B6/134 , G02F2001/0156
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.
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Patent Agency Ranking
26.发明授权公开(公告)号：US09853737B2
公开(公告)日：2017-12-26
申请号：US14615350
申请日：2015-02-05
Applicant: Acacia Communications, Inc.
Inventor： Christian Rasmussen , Seo Yeon Park , Mehrdad Givehchi
CPC classification number: H04B10/541 , H04B10/50575
Abstract: Disclosed are bias control methods for Mach-Zehnder modulators for the generation of optical QAM signals while ensuring correct I/Q polarity of the generated optical QAM signal. One exemplary method involves temporarily offsetting I and Q biases from ideal transmission null bias points while another illustrative method temporarily makes I and Q data streams identical.
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公开(公告)号：US20170272152A1
公开(公告)日：2017-09-21
申请号：US15613038
申请日：2017-06-02
Applicant: Acacia Communications, Inc.
Inventor： Eric Swanson , Graeme Pendock
IPC: H04B10/07
Abstract: Designs, methods, and applications for fault localization and fiber security in optical transponders is described. In one embodiment a two-way time transfer protocol or other suitable method for synchronizing clocks between distant transponders is used. The clock synchronized transponders have digital signal processing to continually detect high precision time-histories of physical layer attributes in the transmission between the two transponders. Physical layer attributes can include: state-of-polarization changes, changes in polarization-mode-dispersion, change in propagation delay, changes or loss-of-light, changes in OSNR, changes in BER between the two nodes. By recording these physical layer changes and time-stamping them information on the magnitude and estimated location of the changes can be inferred by from the time records. In one aspect the method may be used in a distributed optical sensor for monitoring trespassing events that are a risk to fiber security of an optical transmission link.
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公开(公告)号：US09768884B2
公开(公告)日：2017-09-19
申请号：US14056520
申请日：2013-10-17
Applicant: ACACIA COMMUNICATIONS INC.
Inventor： Peijun Shan , Christian Rasmussen
CPC classification number: H04B10/6161
Abstract: Disclosed herein are methods, structures, and devices that provide multi-range frequency domain compensation of chromatic dispersion within optical transmission systems that offer significant operational power savings. More specifically, a method of operating frequency domain filtering structures and circuits including FFT, frequency-domain filter multiplication and iFFT functions at a lower duty cycle for shorter overlap such that significant power savings is realized.
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29.发明授权公开(公告)号：US09628186B2
公开(公告)日：2017-04-18
申请号：US14538781
申请日：2014-11-11
Applicant: ACACIA COMMUNICATIONS INC.
Inventor： Diedrik Vermeulen
IPC: H04B10/50 , H04B10/54 , H04B10/556
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.
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公开(公告)号：US09477039B2
公开(公告)日：2016-10-25
申请号：US14475506
申请日：2014-09-02
Applicant: Acacia Communications, Inc.
Inventor： Christopher Doerr , Long Chen
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 structures' performance.
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，肋与肋导向 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。
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