TWO-SECTION SEMICONDUCTOR LASER WITH MODULATION-INDEPENDENT GRATING SECTION TO REDUCE CHIRP
    1.
    发明申请
    TWO-SECTION SEMICONDUCTOR LASER WITH MODULATION-INDEPENDENT GRATING SECTION TO REDUCE CHIRP 审中-公开
    具有调制独立光泽度的两部分半导体激光器,以减少CHIRP

    公开(公告)号:WO2016112087A1

    公开(公告)日:2016-07-14

    申请号:PCT/US2016/012307

    申请日:2016-01-06

    CPC classification number: H01S5/06256 H01S5/02415 H01S5/06226

    Abstract: A two-section semiconductor laser includes a gain section and a modulation-independent grating section to reduce chirp. The modulation-independent grating section includes a diffraction grating for reflecting light and forms a laser cavity with the gain section for lasing at a wavelength or range of wavelengths reflected by the diffraction grating. The gain section of the semiconductor laser includes a gain electrode for driving the gain section with at least a modulated RF signal and the grating section includes a grating electrode for driving the grating section with a DC bias current independent of the modulation of the gain section. The semiconductor laser may thus be directly modulated with the modulated RF signal without the modulation significantly affecting the index of refraction in the diffraction grating, thereby reducing chirp.

    Abstract translation: 两部分半导体激光器包括增益部分和调制无关光栅部分,以减少啁啾。 调制非依赖光栅部分包括用于反射光的衍射光栅,并且在激光的增益部分处形成激光腔,该增益部分在由衍射光栅反射的波长或波长范围内进行激光。 半导体激光器的增益部分包括用于以至少调制的RF信号驱动增益部分的增益电极,并且光栅部分包括用于以独立于增益部分的调制的DC偏置电流来驱动光栅部分的光栅电极。 因此,半导体激光器可以用调制的RF信号直接调制,而不会使调制显着影响衍射光栅中的折射率,从而减少啁啾。

    TUNABLE U-LASER TRANSMITTER WITH INTEGRATED MACH-ZEHNDER MODULATOR
    3.
    发明申请
    TUNABLE U-LASER TRANSMITTER WITH INTEGRATED MACH-ZEHNDER MODULATOR 审中-公开
    带集成MACH-ZEHNDER调制器的TUNABLE U-LASER发射器

    公开(公告)号:WO2014107537A1

    公开(公告)日:2014-07-10

    申请号:PCT/US2014/010108

    申请日:2014-01-02

    Abstract: According to the present invention, a monolithically integrated laser (102), also referred to herein as a U-laser (102), or integrated dual optical emission laser (102), having a first optical emission (104) and a second optical emission (106) where both the first and second optical emissions (104), (106) of the monolithically integrated laser (102) are in optical communication with a modulator (108) or other device is provided. The integrated dual emission laser (102) can be formed with a a light bending portion (134) in variety of configurations including a waveguide in the form of a U-shape, or total internal reflection (TIR) mirrors, curved waveguides, and free-space etched gap mirrors. The integrated dual optical emission laser (102) can also have two laser gain sections (130), (148), one on each arm of the laser (102) to control gain.

    Abstract translation: 根据本发明,具有第一光发射(104)和第二光发射(104)的单片集成激光器(102),本文也称为U激光器(102)或集成双发射激光器(102) (106),其中提供了单片集成激光器(102)的第一和第二光发射(104),(106)与调制器(108)或其他设备进行光通信。 集成双发射激光器(102)可以形成有各种配置的光弯曲部分(134),包括呈U形形状的波导或全内反射(TIR)反射镜,弯曲波导和自由 - 空间蚀刻间隙镜。 集成双发射激光器(102)还可以具有激光器(102)的每个臂上的一个激光增益部分(130),(148))以控制增益。

    MONOLITHICALLY INTEGRATED TUNABLE SEMICONDUCTOR LASER
    4.
    发明申请
    MONOLITHICALLY INTEGRATED TUNABLE SEMICONDUCTOR LASER 审中-公开
    单组件可集成的半导体激光器

    公开(公告)号:WO2013030550A2

    公开(公告)日:2013-03-07

    申请号:PCT/GB2012/052086

    申请日:2012-08-24

    Abstract: A monolithically integrated, tunable semiconductor laser with an optical waveguide, comprising epitaxial layers on a substrate and having first and second reflectors bounding an optical gain section and a non-driven region, wherein at least one of the reflectors is a distributed Bragg reflector section configured to have a tunable reflection spectrum, wherein control electrodes are provided to at least the optical gain section, and the distributed Bragg reflector section, and wherein the non-driven region has a length of at least 100μm, is without an electrical contact directly contacting onto the epitaxially grown side of the non- driven region, and the non-driven region is without a reflective Bragg grating within the epitaxial layers of the non-driven region.

    Abstract translation: 一种具有光波导的单片集成的可调谐半导体激光器,包括在衬底上的外延层,并且具有界定光学增益部分和非驱动区域的第一和第二反射器,其中至少一个反射器是配置的分布式布拉格反射器部分 具有可调谐的反射光谱,其中控制电极被提供到至少光学增益部分和分布式布拉格反射器部分,并且其中非驱动区域具有至少100μm的长度,没有电接触直接接触到 非驱动区域的外延生长侧和非驱动区域在非驱动区域的外延层内没有反射布拉格光栅。

    MULTI - SECTION QUANTUM CASCADE LASER WITH P-TYPE ISOLATION REGIONS
    5.
    发明申请
    MULTI - SECTION QUANTUM CASCADE LASER WITH P-TYPE ISOLATION REGIONS 审中-公开
    多部分量子激光与P型隔离区域

    公开(公告)号:WO2012125398A1

    公开(公告)日:2012-09-20

    申请号:PCT/US2012/028238

    申请日:2012-03-08

    Abstract: A quantum cascade laser and its method of fabrication are provided. The quantum cascade laser comprises one or more p-type electrical isolation regions (40) and a plurality of electrically isolated laser sections (10, 12, 16) extending along a waveguide axis of the laser. An active waveguide core (20) is sandwiched between upper (22, 26) and lower (24) n-type cladding layers and the active core and the upper and lower n-type cladding layers extend through the electrically isolated laser sections of the quantum cascade laser. A portion of the upper n-type cladding layer comprises sufficient p-type dopant to have become p-type and to have become an electrical isolation region, which extends across at least a part of the thickness upper n-type cladding layer along a projection separating the sections of the quantum cascade laser.

    Abstract translation: 提供了量子级联激光器及其制造方法。 量子级联激光器包括沿着激光器的波导轴线延伸的一个或多个p型电隔离区域(40)和多个电隔离的激光器部分(10,12,16)。 有源波导芯(20)夹在上(22,26)和下(24)n型包层之间,有源芯和上,下n型包覆层延伸穿过量子的电隔离激光器部分 级联激光。 上部n型包覆层的一部分包括足够的p型掺杂剂以成为p型并且已经成为电绝缘区域,其沿厚度的上部n型包覆层的至少一部分沿突出部 分离量子级联激光器的部分。

    SYSTEMS AND METHODS FOR VISIBLE LIGHT SOURCE EVALUATION
    6.
    发明申请
    SYSTEMS AND METHODS FOR VISIBLE LIGHT SOURCE EVALUATION 审中-公开
    用于可见光源评估的系统和方法

    公开(公告)号:WO2012058395A1

    公开(公告)日:2012-05-03

    申请号:PCT/US2011/058028

    申请日:2011-10-27

    CPC classification number: H01S5/0014 H01S5/0092 H01S5/06251 H01S5/06256

    Abstract: Particular embodiments of the present disclosure relate systems and methods for evaluating visible light sources. According to one embodiment, a method of evaluating a visible light source including a semiconductor laser having a gain section, a wavelength selective section, and a phase section includes applying a gain drive signal to the gain section of the semiconductor laser at a gain modulation frequency, and applying a triangular wave drive signal to the wavelength selective section of the semiconductor laser at a wavelength selective modulation frequency that is greater than the gain modulation frequency. The light source emits a plurality of optical output pulses. Output power values of the optical output pulses at a selected wavelength are detected. The output power value of selected output pulses is compared with an output power threshold value indicating whether the visible light source satisfies an output power specification.

    Abstract translation: 本公开的特定实施例涉及用于评估可见光源的系统和方法。 根据一个实施例,一种评估包括具有增益部分,波长选择部分和相位部分的半导体激光器的可见光源的方法包括以增益调制频率向半导体激光器的增益部分施加增益驱动信号 并且以大于增益调制频率的波长选择调制频率向半导体激光器的波长选择部分施加三角波驱动信号。 光源发射多个光输出脉冲。 检测所选波长的光输出脉冲的输出功率值。 将选择的输出脉冲的输出功率值与表示可见光源是否满足输出功率规格的输出功率阈值进行比较。

    MULTIPLE WAVELENGTH OPTICAL SYSTEMS
    7.
    发明申请
    MULTIPLE WAVELENGTH OPTICAL SYSTEMS 审中-公开
    多波长光学系统

    公开(公告)号:WO2011146310A1

    公开(公告)日:2011-11-24

    申请号:PCT/US2011/036185

    申请日:2011-05-12

    Abstract: Optical systems operable to emit multiple frequency- converted spectral peaks are provided. In one embodiment, an optical system (100) includes an optical source (110) and a wavelength conversion device (130). The optical source (110) may include a laser configured to emit a pump beam (120) having at least two fundamental spectral peaks (125, 127). The wavelength conversion device (130) may include a non- linear optical medium configured to phase match the second harmonic generation of each of the at least two fundamental spectral peaks (125, 127) and sum- frequency generation of the at least two fundamental spectral peaks (125, 127) such that an output beam (140) comprising at least three frequency- converted spectral peaks (142, 144, 146) having approximately equal power is emitted from an output facet (138) of the wavelength conversion device (130) when the pump beam (120) of the optical source (110) is incident on an input facet (131) of the wavelength conversion device (130).

    Abstract translation: 提供可操作以发射多个频率转换的光谱峰值的光学系统。 在一个实施例中,光学系统(100)包括光源(110)和波长转换装置(130)。 光源(110)可以包括被配置为发射具有至少两个基本光谱峰值(125,127)的泵浦光束(120)的激光器。 波长转换装置(130)可以包括非线性光学介质,其被配置为使至少两个基本频谱峰值(125,127)中的每一个的二次谐波产生相位匹配,并且至少两个基本频谱的和频产生 峰值(125,127),使得包含至少三个具有近似相等功率的频率转换频谱峰值(142,144,146)的输出光束(140)从波长转换装置(130)的输出小面(138)发射 ),当光源(110)的泵浦光束(120)入射到波长转换装置(130)的输入端面(131)时。

    波長可変レーザ装置、光モジュールおよび波長可変レーザの制御方法
    8.
    发明申请
    波長可変レーザ装置、光モジュールおよび波長可変レーザの制御方法 审中-公开
    可变波长激光装置,光学模块和可变波长激光控制方法

    公开(公告)号:WO2011048869A1

    公开(公告)日:2011-04-28

    申请号:PCT/JP2010/063908

    申请日:2010-08-18

    CPC classification number: H01S5/0687 H01S5/02415 H01S5/06256

    Abstract:  省電力で、かつ信頼性の高い波長可変レーザ装置を提供する。 本発明の波長可変レーザ装置10は、光源111と波長可変機構112、113とを含むレーザ共振器と光損失制御手段114a、114bとを含む波長可変レーザ11と、波長可変レーザ11の温度を検知する温度検知素子12と、制御部13とを含み、制御部13が、温度検知素子12から波長可変レーザ11の温度情報aを取得し、温度情報aに基づき波長可変制御パラメータd、eおよび光損失制御パラメータb1、b2を算出し、波長可変制御パラメータd、eに基づき波長可変機構112、113を制御し、光損失制御パラメータb1、b2に基づき光損失制御手段114a、114bを制御することを特徴とする。

    Abstract translation: 提供了一种节省电力并且高可靠性的可变波长激光装置。 可变波长激光装置(10)包括:还包括包含光源(111)和波长变化机构(112,113)的激光谐振器的可变波长激光器(11)和光损耗控制装置(114a,114b) ; 温度检测元件(12),其检测所述可变波长激光器(11)的温度; 和控制单元(13)。 控制单元(13)从温度检测元件(12)获得关于可变波长激光器(11)的温度信息(a),对波长可变控制参数(d,e)和光损耗控制参数(b1,b2) 温度信息的基础(a)基于波长可变控制参数(d,e)控制波长变化机构(112,113),并且基于该光学损耗控制装置(114a,114b) 的光损失控制参数(b1,b2)。

    MULTI-VARIABLE CONTROL METHODS FOR OPTICAL PACKAGES
    9.
    发明申请
    MULTI-VARIABLE CONTROL METHODS FOR OPTICAL PACKAGES 审中-公开
    用于光学包装的多变量控制方法

    公开(公告)号:WO2010075017A3

    公开(公告)日:2011-03-10

    申请号:PCT/US2009067818

    申请日:2009-12-14

    Abstract: According to one embodiment of the present invention, an optical package comprises one or more semiconductor lasers coupled to a wavelength conversion device with adaptive optics. The optical package also comprises a package controller programmed to operate the semiconductor laser and the adaptive optics based on modulated feedback control signals supplied to the wavelength selective section of the semiconductor laser and the adaptive optics. The wavelength control signal supplied to the wavelength selective section of the semiconductor laser may be adjusted based on the modulated wavelength feedback control signal such that the response parameter of the wavelength conversion device is optimized. Similarly, the position control signals supplied to the adaptive optics may be adjusted based on the modulated feedback position control signals such that the response parameter of the wavelength conversion device is optimized.

    Abstract translation: 根据本发明的一个实施例,光学封装包括耦合到具有自适应光学器件的波长转换器件的一个或多个半导体激光器。 光学封装还包括编程为基于提供给半导体激光器和自适应光学器件的波长选择部分的调制反馈控制信号来操作半导体激光器和自适应光学器件的封装控制器。 提供给半导体激光器的波长选择部分的波长控制信号可以基于调制的波长反馈控制信号进行调整,使得波长转换器件的响应参数被优化。 类似地,可以基于调制的反馈位置控制信号来调整提供给自适应光学器件的位置控制信号,使得波长转换装置的响应参数被优化。

    MINIMIZING POWER VARIATIONS IN LASER SOURCES
    10.
    发明申请
    MINIMIZING POWER VARIATIONS IN LASER SOURCES 审中-公开
    最小化激光源的功率变化

    公开(公告)号:WO2010068721A1

    公开(公告)日:2010-06-17

    申请号:PCT/US2009/067432

    申请日:2009-12-10

    Abstract: The present invention relates generally to semiconductor lasers and laser projection systems. According to one embodiment of the present invention, a projected laser image is generated utilizing an output beam of the semiconductor laser (12). A gain current control signal is generated by a laser feedback loop to control the gain section (12B) of the semiconductor laser. Wavelength fluctuations of the semiconductor laser are narrowed by incorporating a wavelength recovery operation in a drive current of the semiconductor laser and by initiating the wavelength recovery operations as a function of the gain current control signal or an optical intensity error signal. Additional embodiments are disclosed and claimed.

    Abstract translation: 本发明一般涉及半导体激光器和激光投射系统。 根据本发明的一个实施例,利用半导体激光器(12)的输出光束产生投射的激光图像。 增益电流控制信号由激光反馈回路产生,以控制半导体激光器的增益部分(12B)。 通过在半导体激光器的驱动电流中并入波长恢复操作并且通过作为增益电流控制信号或光强度误差信号的函数启动波长恢复操作,半导体激光器的波长波动变窄。 公开并要求保护附加实施例。

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