公开(公告)号：US10222637B2

公开(公告)日：2019-03-05

申请号：US15812517

申请日：2017-11-14

Applicant: Luxtera, Inc.

Inventor： Attila Mekis ,  Adithyaram Narasimha ,  Jeremy Witzens

IPC: G02B6/27 ,  G02F1/01 ,  G02B6/293 ,  G02F1/035 ,  G02F1/313 ,  G02B6/126 ,  G02B6/125 ,  G02B6/42 ,  G02B6/34 ,  G02B6/12

Abstract: A system for integrated power combiners is disclosed and may include receiving optical signals in input optical waveguides and phase-modulating the signals to configure a phase offset between signals received at a first optical coupler, where the first optical coupler may generate output signals having substantially equal optical powers. Output signals of the first optical coupler may be phase-modulated to configure a phase offset between signals received at a second optical coupler, which may generate an output signal having an optical power of essentially zero and a second output signal having a maximized optical power. Optical signals received by the input optical waveguides may be generated utilizing a polarization-splitting grating coupler to enable polarization-insensitive combining of optical signals. Optical power may be monitored using optical detectors. The monitoring of optical power may be used to determine a desired phase offset between the signals received at the first optical coupler.

公开(公告)号：US20180234189A1

公开(公告)日：2018-08-16

申请号：US15950876

申请日：2018-04-11

Applicant: Luxtera, Inc.

Inventor： Peter De Dobbelaere ,  Attila Mekis ,  Gianlorenzo Masini

IPC: H04B10/80 ,  G02B6/42 ,  G02B6/34 ,  G02B6/122

CPC classification number: H04B10/801 ,  G02B6/1228 ,  G02B6/34 ,  G02B6/4279

Abstract: Methods and systems for large silicon photonic interposers by stitching are disclosed and may include, in an integrated optical communication system including CMOS electronics die coupled to a silicon photonic interposer, where the interposer includes a plurality of reticle sections: communicating an optical signal between two of the plurality of reticle sections utilizing a waveguide. The waveguide may include a taper region at a boundary between the two reticle sections, the taper region expanding an optical mode of the communicated optical signal prior to the boundary and narrowing the optical mode after the boundary. A continuous wave (CW) optical signal may be received in a first of the reticle sections from an optical source external to the interposer. The CW optical signal may be received in the interposer from an optical source assembly coupled to a grating coupler in the first of the reticle sections in the silicon photonic interposer.

公开(公告)号：US09948402B2

公开(公告)日：2018-04-17

申请号：US15171233

申请日：2016-06-02

Applicant: Luxtera, Inc.

Inventor： Peter De Dobbelaere ,  Attila Mekis ,  Gianlorenzo Masini

IPC: G02B6/34 ,  H04B10/80 ,  G02B6/122 ,  G02B6/42

CPC classification number: H04B10/801 ,  G02B6/1228 ,  G02B6/34 ,  G02B6/4279

Abstract: Methods and systems for large silicon photonic interposers by stitching are disclosed and may include, in an integrated optical communication system including CMOS electronics die coupled to a silicon photonic interposer, where the interposer includes a plurality of reticle sections: communicating an optical signal between two of the plurality of reticle sections utilizing a waveguide. The waveguide may include a taper region at a boundary between the two reticle sections, the taper region expanding an optical mode of the communicated optical signal prior to the boundary and narrowing the optical mode after the boundary. A continuous wave (CW) optical signal may be received in a first of the reticle sections from an optical source external to the interposer. The CW optical signal may be received in the interposer from an optical source assembly coupled to a grating coupler in the first of the reticle sections in the silicon photonic interposer.

公开(公告)号：US20180059504A1

公开(公告)日：2018-03-01

申请号：US15694236

申请日：2017-09-01

Applicant: Luxtera, Inc.

Inventor： Attila Mekis ,  Subal Sahni ,  Yannick De Koninck ,  Gianlorenzo Masini ,  Faezeh Gholami

IPC: G02F1/225

CPC classification number: G02F1/2257 ,  G02F1/025 ,  G02F2001/212 ,  G02F2201/063 ,  G02F2201/12

Abstract: Methods and systems for a vertical junction high-speed phase modulator are disclosed and may include a semiconductor device having a semiconductor waveguide including a slab section, a rib section extending above the slab section, and raised ridges extending above the slab section on both sides of the rib section. The semiconductor device has a vertical pn junction with p-doped material and n-doped material arranged vertically with respect to each other in the rib and slab sections. The rib section may be either fully n-doped or p-doped in each cross-section along the semiconductor waveguide. Electrical connection to the p-doped and n-doped material may be enabled by forming contacts on the raised ridges, and electrical connection may be provided to the rib section from one of the contacts via periodically arranged sections of the semiconductor waveguide, where a cross-section of both the rib section and the slab section in the periodically arranged sections may be fully n-doped or fully p-doped.

公开(公告)号：US20170160469A1

公开(公告)日：2017-06-08

申请号：US15433668

申请日：2017-02-15

Applicant: Luxtera, Inc.

Inventor： Lieven Verslegers ,  Attila Mekis

IPC: G02B6/124 ,  G02B6/30 ,  G02B6/126

CPC classification number: G02B6/26 ,  G02B5/1861 ,  G02B6/124 ,  G02B6/126 ,  G02B6/30 ,  G02B6/34 ,  G02B6/4214 ,  G02B2006/12107 ,  G02B2006/12147 ,  G02B2006/1215

Abstract: Methods and systems for grating couplers incorporating perturbed waveguides are disclosed and may include in a semiconductor photonics die, communicating optical signals into and/or out of the die utilizing a grating coupler on the die, where the grating coupler comprises perturbed waveguides. The perturbed waveguides may include rows of continuous waveguides with scatterers extending throughout a length of said perturbed waveguides a variable width along their length. The grating coupler may comprise a single polarization grating coupler comprising perturbed waveguides and a non-perturbed grating. The grating coupler may comprise a polarization splitting grating coupler (PSGC) that includes two sets of perturbed waveguides at a non-zero angle, or a plurality of non-linear rows of discrete shapes. The PSGC may comprise discrete scatterers at an intersection of the sets of perturbed waveguides. The grating coupler may comprise individual scatterers between the perturbed waveguides.

公开(公告)号：US20170082801A1

公开(公告)日：2017-03-23

申请号：US15269104

申请日：2016-09-19

Applicant: Luxtera, Inc.

Inventor： Brian Welch ,  Attila Mekis ,  Steffan Gloeckner

IPC: G02B6/12 ,  H04J14/02 ,  H04B10/516 ,  G02B6/293 ,  H04B10/80 ,  G02B6/124 ,  G02B6/125 ,  H04J14/06 ,  H04B10/40

CPC classification number: G02B6/12004 ,  G02B6/124 ,  G02B6/125 ,  G02B6/29386 ,  G02B6/4213 ,  G02B6/4215 ,  G02B6/4246 ,  G02B2006/12142 ,  H04B10/40 ,  H04B10/801 ,  H04J14/0256

Abstract: Methods and systems for partial integration of wavelength division multiplexing and bi-directional solutions are disclosed and may include, an optical transceiver on a silicon photonics integrated circuit coupled to a planar lightwave circuit (PLC). The silicon photonics integrated circuit may include a first modulator and first light source that operates at a first wavelength and a second modulator and second light source that operates at a second wavelength. The transceiver and PLC are operable to modulate a first continuous wave (CW) optical signal from the first light source utilizing the first modulator driven by a first electrical signal and modulate a second CW optical signal from the second light source utilizing the second modulator driven by a second electrical signal. The modulated signals may be communicated from the modulators to the PLC utilizing a first pair of grating couplers in the IC and combined in the PLC.

公开(公告)号：US20160349544A1

公开(公告)日：2016-12-01

申请号：US15231356

申请日：2016-08-08

Applicant: Luxtera, Inc.

Inventor： Attila Mekis ,  Adithyaram Narasimha ,  Jeremy Witzens

IPC: G02F1/01 ,  G02B6/27 ,  G02B6/42 ,  G02B6/125 ,  G02B6/293 ,  G02B6/126 ,  G02B6/34

CPC classification number: G02F1/0136 ,  G02B6/125 ,  G02B6/126 ,  G02B6/2726 ,  G02B6/2773 ,  G02B6/29344 ,  G02B6/34 ,  G02B6/4286 ,  G02B2006/12142 ,  G02F1/011 ,  G02F1/313

Abstract: A system for integrated power combiners is disclosed and may include receiving optical signals in input optical waveguides and phase-modulating the signals to configure a phase offset between signals received at a first optical coupler, where the first optical coupler may generate output signals having substantially equal optical powers. Output signals of the first optical coupler may be phase-modulated to configure a phase offset between signals received at a second optical coupler, which may generate an output signal having an optical power of essentially zero and a second output signal having a maximized optical power. Optical signals received by the input optical waveguides may be generated utilizing a polarization-splitting grating coupler to enable polarization-insensitive combining of optical signals. Optical power may be monitored using optical detectors. The monitoring of optical power may be used to determine a desired phase offset between the signals received at the first optical coupler.

Abstract translation: 公开了用于集成功率组合器的系统，并且可以包括在输入光波导中接收光信号并相位调制信号以配置在第一光耦合器处接收的信号之间的相位偏移，其中第一光耦合器可以产生具有基本相等的输出信号 光功率 可以对第一光耦合器的输出信号进行相位调制，以配置在第二光耦合器处接收的信号之间的相位偏移，其可以产生具有基本为零的光功率的输出信号和具有最大光功率的第二输出信号。 由输入光波导接收的光信号可以利用偏振光分离光栅耦合器产生，以实现光信号的偏振不敏感组合。 可以使用光学检测器监视光功率。 可以使用光功率的监视来确定在第一光耦合器处接收的信号之间的期望的相位偏移。

公开(公告)号：US20160349450A1

公开(公告)日：2016-12-01

申请号：US15232067

申请日：2016-08-09

Applicant: Luxtera, Inc.

Inventor： Thierry Pinguet ,  Attila Mekis ,  Steffen Gloeckner

IPC: G02B6/124 ,  G02B6/34 ,  G02B6/30 ,  G02B6/12

CPC classification number: G02B6/124 ,  G01J1/02 ,  G01J1/0425 ,  G02B6/12004 ,  G02B6/30 ,  G02B6/34 ,  G02B6/4208 ,  G02B2006/12038 ,  G02B2006/12061 ,  G02B2006/12104 ,  G02B2006/12157

Abstract: A method and system for coupling optical signals into silicon optoelectronic chips are disclosed and may include coupling one or more optical signals into a back surface of a CMOS photonic chip comprising photonic, electronic, and optoelectronic devices. The devices may be integrated in a front surface of the chip and one or more optical couplers may receive the optical signals in the front surface of the chip. The optical signals may be coupled into the back surface of the chip via one or more optical fibers and/or optical source assemblies. The optical signals may be coupled to the grating couplers via a light path etched in the chip, which may be refilled with silicon dioxide. The chip may be flip-chip bonded to a packaging substrate. Optical signals may be reflected back to the grating couplers via metal reflectors, which may be integrated in dielectric layers on the chip.

Abstract translation: 公开了一种用于将光信号耦合到硅光电芯片的方法和系统，并且可以包括将一个或多个光信号耦合到包括光子，电子和光电器件的CMOS光子芯片的背表面中。 器件可以集成在芯片的前表面中，并且一个或多个光耦合器可以接收芯片前表面中的光信号。 光信号可以经由一个或多个光纤和/或光源组件耦合到芯片的后表面中。 光信号可以通过蚀刻在芯片中的光路耦合到光栅耦合器，其可以用二氧化硅再填充。 芯片可以倒装芯片结合到封装基板。 光信号可以经由金属反射器反射回光栅耦合器，金属反射器可以集成在芯片上的电介质层中。

公开(公告)号：US20160349449A1

公开(公告)日：2016-12-01

申请号：US15232051

申请日：2016-08-09

Applicant: Luxtera, Inc.

Inventor： Lieven Verslegers ,  Attila Mekis

IPC: G02B6/124 ,  G02B6/126 ,  G02B6/27 ,  G02B6/34

CPC classification number: G02B6/26 ,  G02B5/1861 ,  G02B6/124 ,  G02B6/126 ,  G02B6/30 ,  G02B6/34 ,  G02B6/4214 ,  G02B2006/12107 ,  G02B2006/12147 ,  G02B2006/1215

Abstract: Methods and systems for grating couplers incorporating perturbed waveguides are disclosed and may include in a semiconductor photonics die, communicating optical signals into and/or out of the die utilizing a grating coupler on the die, where the grating coupler comprises perturbed waveguides. The perturbed waveguides may include rows of continuous waveguides with non-discrete scatterers extending throughout a length of said perturbed waveguides a variable width along their length. The grating coupler may comprise a single polarization grating coupler comprising perturbed waveguides and a non-perturbed grating. The grating coupler may comprise a polarization splitting grating coupler (PSGC) that includes two sets of perturbed waveguides at a non-zero angle, or a plurality of non-linear rows of discrete shapes. The PSGC may comprise discrete scatterers at an intersection of the sets of perturbed waveguides. The grating coupler may comprise individual scatterers between the perturbed waveguides.

Abstract translation: 公开了包含扰动波导的光栅耦合器的方法和系统，并且可以包括在半导体光子管芯中，使用管芯上的光栅耦合器将光信号传送到和/或离开裸片，其中光栅耦合器包括扰动的波导。 扰动的波导可以包括具有非离散散射体的连续波导行，其在所述扰动波导的长度上沿其长度延伸可变宽度。 光栅耦合器可以包括包含扰动波导和非扰动光栅的单偏振光栅耦合器。 光栅耦合器可以包括偏振分光光栅耦合器（PSGC），其包括非零角度的两组扰动波导，或多个离散形状的非线性行。 PSGC可以包括在扰动波导组的相交处的离散散射体。 光栅耦合器可以包括扰动波导之间的各个散射体。

公开(公告)号：US20150381283A1

公开(公告)日：2015-12-31

申请号：US14752696

申请日：2015-06-26

Applicant: Luxtera, Inc.

Inventor： Subal Sahni ,  Kam-Yan Hon ,  Attila Mekis ,  Gianlorenzo Masini ,  Lieven Verslegers

IPC: H04B10/548 ,  H04B10/2581 ,  H04B10/50

CPC classification number: H04B10/548 ,  G02F1/025

Abstract: Methods and systems for a silicon-based optical phase modulator with high modal overlap are disclosed and may include, in an optical modulator having a rib waveguide in which a cross-shaped depletion region separates four alternately doped sections: receiving an optical signal at one end of the optical modulator, modulating the received optical signal by applying a modulating voltage, and communicating a modulated optical signal out of an opposite end of the modulator. The modulator may be in a silicon photonically-enabled integrated circuit which may be in a complementary-metal oxide semiconductor (CMOS) die. An optical mode may be centered on the cross-shaped depletion region. The four alternately doped sections may include: a shallow depth p-region, a shallow depth n-region, a deep p-region, and a deep n-region. The shallow depth p-region may be electrically coupled to the deep p-region periodically along the length of the modulator.

Abstract translation: 公开了具有高模态重叠的硅基光学相位调制器的方法和系统，并且可以包括在具有肋波导的光学调制器中，其中十字形耗尽区域分离四个交替掺杂的部分：在一端接收光信号 的光调制器，通过施加调制电压来调制所接收的光信号，并将调制的光信号从调制器的相对端传送出去。 调制器可以在可以在互补金属氧化物半导体（CMOS）裸片中的硅光子学上集成电路中。 光学模式可以在十字形耗尽区域的中心。 四个交替掺杂的部分可以包括：浅深度p区域，浅深度n区域，深p区域和深n区域。 浅深度p区域可以沿着调制器的长度周期性地电耦合到深p区域。