公开(公告)号：US20190221995A1

公开(公告)日：2019-07-18

申请号：US16243799

申请日：2019-01-09

Applicant: Lumentum Operations LLC

Inventor： John M. Heaton ,  Konstantin Petrovich Petrov

IPC: H01S5/026 ,  H01S5/125 ,  H01S5/12 ,  H01S5/06

CPC classification number: H01S5/0268 ,  H01S5/0261 ,  H01S5/0264 ,  H01S5/0612 ,  H01S5/1209 ,  H01S5/124 ,  H01S5/125

Abstract: An on-chip wavelength locker may include an optical waveguide splitter to split an input optical signal received from a laser. The on-chip wavelength locker may include a plurality of integrated periodic optical elements, each to receive a respective portion of the input optical signal after splitting of the input optical signal by the optical waveguide splitter, and provide, based on the respective portion of the input optical signal, a respective periodic output optical signal of a plurality of periodic output optical signals. Each periodic output optical signal, of the plurality of periodic output optical signals, may be phase shifted with respect to other periodic output optical signals of the plurality of periodic output optical signals. The on-chip wavelength locker may include a plurality of integrated photodiodes to receive the plurality of periodic output optical signals in association with wavelength locking the laser.

公开(公告)号：US09991963B2

公开(公告)日：2018-06-05

申请号：US14954196

申请日：2015-11-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ramsey Selim ,  Karl Boylan ,  Ian Lealman ,  Richard Wyatt ,  David Rogers

IPC: H04J14/00 ,  H04J14/02 ,  G02B6/28 ,  H04B10/50 ,  H01S5/06 ,  H01S5/10 ,  H01S5/14 ,  H01S5/40 ,  H01S5/026 ,  H01S5/028 ,  H01S5/062 ,  H01S5/12

CPC classification number: H04B10/503 ,  H01S5/0261 ,  H01S5/0268 ,  H01S5/0287 ,  H01S5/0607 ,  H01S5/0612 ,  H01S5/06246 ,  H01S5/1007 ,  H01S5/1092 ,  H01S5/1212 ,  H01S5/141 ,  H01S5/4062 ,  H04J14/00

Abstract: A multi-channel tunable laser includes: a frequency selective optical multiplexer comprising: a plurality of channel terminals for receiving/transmitting light; a plurality of channel waveguide blocks, each channel waveguide block comprising at least one reflectively terminated channel waveguide; and an optical coupling element optically coupling the plurality of channel terminals with the plurality of channel waveguide blocks, each of the channel waveguides of the plurality of channel waveguide blocks having a different length; a plurality of channel paths, each channel path coupled to a respective channel terminal of the plurality of channel terminals and comprising a gain element, a phase element and a reflective element; and a plurality of optical tuners, each one configured to tune the channel waveguides of a respective channel waveguide block of the plurality of channel waveguide blocks.

公开(公告)号：US20180081114A1

公开(公告)日：2018-03-22

申请号：US15492582

申请日：2017-04-20

Applicant: Hisense Broadband Multimedia Technologies Co., Ltd. ,  Hisense Broadband Multimedia Technologies, Ltd. ,  Huazhong University of Science and Technology

Inventor： Xun Li ,  Zekun Lin ,  Hua Zhang

IPC: G02B6/124 ,  H01S5/18 ,  H01S5/026

CPC classification number: G02B6/124 ,  G02B6/12002 ,  G02B6/34 ,  G02B2006/12104 ,  G02B2006/12121 ,  G02B2006/12147 ,  H01S5/021 ,  H01S5/026 ,  H01S5/0268 ,  H01S5/1032 ,  H01S5/1035 ,  H01S5/1039 ,  H01S5/1215 ,  H01S5/1246 ,  H01S5/18 ,  H01S2301/173

Abstract: A light emitting device, an optical module and a manufacturing method thereof are disclosed. According to an example of the disclosure, the light emitting device may comprise an optical waveguide chip, a light emitting chip and a grating between the light emitting chip and the optical waveguide chip. The light emitting chip may emit laser light. The grating may couple the laser light emitted from the active layer into the optical waveguide chip in a way that the laser light is output along a length direction of the optical waveguide chip.

公开(公告)号：US09910220B2

公开(公告)日：2018-03-06

申请号：US14794106

申请日：2015-07-08

Applicant: The Regents of the University of California

Inventor： John E. Bowers

IPC: H01L31/18 ,  G02B6/122 ,  H01S5/02 ,  H01S5/026 ,  H01S5/125 ,  G02B6/12 ,  G02F1/017 ,  H01S5/343 ,  H01L27/146 ,  H01L31/12 ,  H01S5/183

CPC classification number: G02B6/1225 ,  G02B6/12002 ,  G02B2006/12061 ,  G02B2006/12107 ,  G02B2006/12121 ,  G02B2006/12128 ,  G02B2006/12147 ,  G02F1/01708 ,  H01L27/146 ,  H01L31/125 ,  H01L31/1852 ,  H01S5/0208 ,  H01S5/021 ,  H01S5/0215 ,  H01S5/0217 ,  H01S5/0261 ,  H01S5/0268 ,  H01S5/125 ,  H01S5/18341 ,  H01S5/18369 ,  H01S5/343 ,  Y02E10/544 ,  Y02P70/521

Abstract: Photonic integrated circuits on silicon are disclosed. By bonding a wafer of HI-V material as an active region to silicon and removing the substrate, the lasers, amplifiers, modulators, and other devices can be processed using standard photolithographic techniques on the silicon substrate. The coupling between the silicon waveguide and the III-V gain region allows for integration of low threshold lasers, tunable lasers, and other photonic integrated circuits with Complimentary Metal Oxide Semiconductor (CMOS) integrated circuits.

公开(公告)号：US09768587B1

公开(公告)日：2017-09-19

申请号：US15341691

申请日：2016-11-02

Applicant: Oracle International Corporation

Inventor： Xuezhe Zheng ,  Jin Yao ,  Ying Luo ,  Ashok V. Krishnamoorthy

IPC: H01S5/00 ,  H01S5/10 ,  H01S5/125 ,  H01S5/30 ,  H01S5/50 ,  H01S5/14 ,  H01S5/06 ,  H01S5/187

CPC classification number: H01S5/1092 ,  H01S3/106 ,  H01S5/0071 ,  H01S5/0268 ,  H01S5/0608 ,  H01S5/141 ,  H01S5/142 ,  H01S5/187 ,  H01S5/4087 ,  H01S5/5027

Abstract: The disclosed embodiments provide a tunable laser that includes a set of M reflective silicon optical amplifiers (RSOAs) and a set of N narrow-band reflectors. It also includes a silicon-photonic optical switch, having M amplifier ports, which are coupled through a set of M optical waveguides to the set of M RSOAs, and N reflector ports, which are coupled to the set of N narrow-band reflectors. The tunable laser also includes a switching mechanism that facilitates coupling at least one selected amplifier port from the M amplifier ports with a selected reflector port from the N reflector ports, thereby causing an RSOA coupled to the selected amplifier port to form a lasing cavity with a narrow-band reflector coupled to the selected reflector port. The tunable laser also includes a laser output, which is optically coupled to the lasing cavity.

公开(公告)号：US09728938B2

公开(公告)日：2017-08-08

申请号：US14486047

申请日：2014-09-15

Applicant: FUJITSU LIMITED

Inventor： Manabu Matsuda ,  Ayahito Uetake

IPC: H01S5/125 ,  H01S5/12 ,  H01S5/026 ,  H01S5/22 ,  H01S5/40 ,  H01S5/227

CPC classification number: H01S5/125 ,  H01S5/0268 ,  H01S5/124 ,  H01S5/22 ,  H01S5/2275 ,  H01S5/4012 ,  H01S5/4087

Abstract: An optical semiconductor device includes: an active region which includes an active layer which produces light when current is injected therein, a first diffraction grating layer having a first diffraction grating with a prescribed grating period, and a phase shift portion formed within the first diffraction grating layer, wherein the phase shift portion provides a phase shift not smaller than 1.5π but not larger than 1.83π; and a distributed reflection mirror region which is optically coupled to a first end of the active region as viewed along a direction of an optical axis, and which includes a second diffraction grating which reflects the light produced by the active region back into the active region.

公开(公告)号：US09711940B2

公开(公告)日：2017-07-18

申请号：US14569351

申请日：2014-12-12

Applicant: Guang-Hua Duan ,  Frédéric Van Dijk ,  Gaël Kervella

Inventor： Guang-Hua Duan ,  Frédéric Van Dijk ,  Gaël Kervella

IPC: H01S5/00 ,  H01S5/026 ,  H01S3/067 ,  H01S5/065 ,  H01S3/10 ,  H01S5/12 ,  H01S5/40

CPC classification number: H01S5/0268 ,  H01S3/0675 ,  H01S3/10084 ,  H01S5/026 ,  H01S5/0656 ,  H01S5/1215 ,  H01S5/4087

Abstract: In the field of narrow linewidth laser sources and a laser device that comprises a laser source and a waveguide of determined refractive index with which it is coupled, a waveguide is single-mode and includes at least four reflectors in the form of trenches etched into the waveguide and irregularly distributed along the waveguide, the distance separating two neighbouring reflectors being above 1 μm, and the waveguide and the laser source have respective lengths such that the length of waveguide over which the reflectors are located is greater than the length of the laser source itself.

公开(公告)号：US20160254644A1

公开(公告)日：2016-09-01

申请号：US14928998

申请日：2015-10-30

Applicant: OE SOLUTIONS AMERICA, INC.

Inventor： Daniel Blumenthal ,  Holger Klein ,  Chad Althouse ,  Todd Chicci ,  Patrick Bybee ,  Henrik Poulsen ,  Sarat Chandra Gundavarapu

IPC: H01S5/042 ,  H01S5/125 ,  H01S5/00

CPC classification number: H01S5/1209 ,  H01S3/07 ,  H01S5/0014 ,  H01S5/02415 ,  H01S5/0268 ,  H01S5/0617 ,  H01S5/06256 ,  H01S5/0683 ,  H01S5/0687 ,  H01S5/101 ,  H01S5/12 ,  H01S5/125 ,  H01S5/50

Abstract: A method and apparatus for calibrating and controlling tunable lasers are disclosed. Multiple methodologies disclosed herein may be used, alone or in combination, which significantly speed up a calibration time and thus provide a significant advantage over existing technology in calibrating the tunable lasers. Certain methodologies benefit from a unique design of the tunable lasers that couple two or more optical facets to an output. The tunable lasers may be equipped with two or more sampled grating distributed Bragg reflector (SGDBR) mirrors and may include Semiconductor Optical Amplifiers (SOAs) after the SGDBR mirrors.

Abstract translation: 公开了一种用于校准和控制可调谐激光器的方法和装置。 本文公开的多种方法可以单独使用或组合使用，这显着地加快了校准时间，因此提供了优于校准可调激光器中的现有技术的显着优点。 某些方法受益于将两个或多个光学面耦合到输出的可调谐激光器的独特设计。 可调激光器可以配备有两个或更多个采样的光栅分布布拉格反射镜（SGDBR）镜，并且可以在SGDBR镜之后包括半导体光放大器（SOA）。

公开(公告)号：US20160164251A1

公开(公告)日：2016-06-09

申请号：US14906880

申请日：2014-07-18

Applicant: PHOTONICS ELECTRONICS TECHNOLOGY RESEARCH ASSOCIATION

Inventor： Kenichiro Yashiki ,  Kazuhiko Kurata

IPC: H01S5/026 ,  H01S5/00 ,  G02B6/12 ,  G02B6/125 ,  G02F1/025

CPC classification number: H01S5/0268 ,  G02B6/12004 ,  G02B6/125 ,  G02B6/2813 ,  G02B6/34 ,  G02B6/4204 ,  G02B6/4249 ,  G02B2006/12142 ,  G02F1/025 ,  H01S5/005 ,  H01S5/0085 ,  H01S5/02248

Abstract: Provided is a transmission unit for an optical transmitter/receiver or an optical transmitter provided with an optical integrated circuit, characterized in the arrangement of a single-channel or multichannel semiconductor laser and the placement of a plurality of optical waveguides.This present invention is provided with: a semiconductor laser for emitting laser light in a plurality of channels; optical waveguides optically coupled in a corresponding manner to the semiconductor lasers, the optical waveguides propagating laser light as input light for each channel; optical modulators for modulating the input light and generating an optical signal; and an optical signal output unit coupled to the optical modulators, the optical signal output unit outputting the optical signal propagated from the optical modulators to the exterior. The present invention is characterized in that the semiconductor laser is arranged on the opposite side from an optical branching unit and the optical modulators, with the optical signal output unit interposed therebetween, in the plane of an opto-electric hybrid board.

Abstract translation: 提供了一种用于光发射机/接收机或具有光学集成电路的光发射机的发射单元，其特征在于单通道或多通道半导体激光器的布置以及多个光波导的放置。 本发明提供了一种用于在多个通道中发射激光的半导体激光器; 以与半导体激光器相应的方式光学耦合的光波导，光波导传播激光作为每个通道的输入光; 用于调制输入光并产生光信号的光调制器; 以及耦合到光调制器的光信号输出单元，光信号输出单元将从光调制器传播的光信号输出到外部。 本发明的特征在于，半导体激光器配置在与光分路单元相反的一侧，光调制器与光信号输出单元插入在光电混合基板的平面内。

公开(公告)号：US09343870B2

公开(公告)日：2016-05-17

申请号：US14501751

申请日：2014-09-30

Applicant: Applied Optoelectronics, Inc.

Inventor： Jun Zheng ,  Klaus Alexander Anselm ,  Huanlin Zhang ,  Hung-Lun Chang

IPC: H01S5/00 ,  H01S5/024 ,  H01S5/026 ,  H01S5/042 ,  H01S5/20 ,  H01S5/10 ,  H01S5/12 ,  H01S5/40 ,  G02B6/12 ,  H04B10/50

CPC classification number: H01S5/02453 ,  G02B6/12 ,  G02B6/12014 ,  G02B2006/12164 ,  H01S5/02415 ,  H01S5/02438 ,  H01S5/02461 ,  H01S5/0261 ,  H01S5/0268 ,  H01S5/0287 ,  H01S5/0612 ,  H01S5/22 ,  H01S5/4087 ,  H01S2301/176 ,  H04B10/40 ,  H04J14/0282

Abstract: A semiconductor laser diode with integrated heating generally includes a lasing region and a heating region integrated into the same semiconductor structure or chip. The lasing region and the heating region include first and second portions, respectively, of the semiconductor layers forming the semiconductor structure and include first and second portions, respectively, of the active regions formed by the semiconductor layers. Separate laser and heater electrodes are electrically connected to the respective lasing and heating regions for driving the respective lasing and heating regions with drive currents. The heating region may thus be driven independently from the lasing region, and heat may be conducted through the semiconductor layers from the heating region to the lasing region allowing the temperature to be controlled more efficiently.

Abstract translation: 具有集成加热的半导体激光二极管通常包括激光区域和集成在同一半导体结构或芯片中的加热区域。 激光区域和加热区域分别包括形成半导体结构的半导体层的第一和第二部分，并且分别包括由半导体层形成的有源区的第一和第二部分。 单独的激光和加热器电极电连接到相应的激光和加热区域，以用驱动电流驱动相应的激光和加热区域。 因此，加热区域可以独立于激光区域被驱动，并且热可以通过半导体层从加热区域传导到激光区域，从而能够更有效地控制温度。