Optical injection locking of laser diode arrays
    21.
    发明授权
    Optical injection locking of laser diode arrays 失效
    激光二极管阵列的光注入锁定

    公开(公告)号:US4686485A

    公开(公告)日:1987-08-11

    申请号:US795796

    申请日:1985-11-07

    CPC classification number: H01S5/0656 H01S5/4031 H01S5/4081 H01S5/0064

    Abstract: An apparatus for amplifying a laser beam through injection locking of a laser array by a single master laser is presented. The apparatus is comprised of a master laser which produces a beam that is shaped or focused onto a laser array facet which is further comprised of an array junction plane wherein the laser array is biased above threshold.

    Abstract translation: 提出了通过单个主激光器通过激光器阵列的注入锁定来放大激光束的装置。 该设备由主激光器组成,该主激光器产生成形或聚焦到激光器阵列小面上的光束,该激光器阵列小面还包括阵列结面,其中激光阵列偏置在阈值以上。

    Compact fiber-based scanning laser detection and ranging system
    22.
    发明授权
    Compact fiber-based scanning laser detection and ranging system 有权
    基于光纤的扫描激光检测和测距系统

    公开(公告)号:US08946637B2

    公开(公告)日:2015-02-03

    申请号:US12952264

    申请日:2010-11-23

    Abstract: A system for short-range laser detection and ranging of targets can provides rapid three-dimensional, e.g., angle, angle, range, scans over a wide field-of-view. Except for the final transmit/receive lens, the disclosed LADAR system can be implemented in an all-fiber configuration. Such system is compact, low cost, robust to misalignment, and lends itself to eye-safe operation by making use of available pulsed 1550 nm fiber lasers and amplifier sources. The disclosed LADAR system incorporates many novel features that provide significant advantages compared to current LADAR systems. The disclosed system uses a monostatic fiber-based transmitter/receiver, a fiber beam scanner based on a laterally vibrating fiber, and a position sensor to monitor the transmitted beam position.

    Abstract translation: 用于短程激光检测和目标测距的系统可以在宽视野范围内提供快速的三维(例如,角度,角度,范围)扫描。 除了最终发射/接收镜头之外,所公开的LADAR系统可以以全光纤配置来实现。 这种系统结构紧凑,成本低,对准不稳定,并且通过使用可用的脉冲1550 nm光纤激光器和放大器源,实现了眼睛安全的操作。 所公开的LADAR系统结合了许多新颖特征,与当前的LADAR系统相比,提供了显着的优点。 所公开的系统使用基于单基于光纤的发射器/接收器,基于横向振动的光纤的光束扫描器和位置传感器来监视透射光束位置。

    Compact multi-wavelength and multi-beam laser
    23.
    发明授权
    Compact multi-wavelength and multi-beam laser 失效
    紧凑型多波长和多光束激光

    公开(公告)号:US08385382B2

    公开(公告)日:2013-02-26

    申请号:US13053422

    申请日:2011-03-22

    Applicant: Lew Goldberg

    Inventor: Lew Goldberg

    Abstract: A compact solid state laser that generates multiple wavelengths and multiple beams that are parallel, i.e., bore-sighted relative to each other, is disclosed. Each of the multiple laser beams can be at a different wavelength, pulse energy, pulse length, repetition rate and average power. Each of the laser beams can be turned on or off independently. The laser is comprised of an optically segmented gain section, common laser resonator with common surface segmented cavity mirrors, optically segmented pump laser, and different intra-cavity elements in each laser segment.

    Abstract translation: 公开了一种致密的固体激光器,其产生多个波长,并且多个波束是平行的,即相对于彼此钻孔的。 多个激光束中的每一个可以具有不同的波长,脉冲能量,脉冲长度,重复率和平均功率。 每个激光束可以单独打开或关闭。 激光器包括光学分段增益部分,具有公共表面分段腔镜的公共激光谐振器,光学分段泵浦激光器和每个激光器段中的不同腔内元件。

    Miniature pulsed fiber laser source
    25.
    发明授权
    Miniature pulsed fiber laser source 有权
    微型脉冲光纤激光源

    公开(公告)号:US07233606B2

    公开(公告)日:2007-06-19

    申请号:US10868668

    申请日:2004-06-14

    Abstract: A pulsed fiber laser and associated electronics contained in a miniature package is disclosed. The Pulsed Fiber Laser Source (PFLS) can be a single-stage high gain master oscillator power amplifier (MOPA) type fiber laser source. The PFLS can include a distributed feedback (DFB) laser, a narrowband optical filter, a broad area high-power pump diode, and Erbium/Ytterbium (Er/Yb) double cladding doped fiber. Input electrical pulses drive the DFB laser diode to emit optical pulses that are then amplified by the optical amplifier. Active and passive cooling elements may be incorporated for continuous operation without rest time. Passive cooling for intermittent pulsed applications allows the laser source to be miniaturized by eliminating active cooling elements and associated power supplies and controllers. Low duty cycle relaxes drive requirements and further reduces the size. The PFLS can be used for long distance ranging, communication by retro-modulation, and communication in presence of atmospheric attenuation.

    Abstract translation: 公开了一种包含在微型封装中的脉冲光纤激光器和相关电子装置。 脉冲光纤激光源(PFLS)可以是单级高增益主振荡器功率放大器(MOPA)型光纤激光源。 PFLS可以包括分布式反馈(DFB)激光器,窄带滤光器,广域大功率泵浦二极管和铒/镱(Er / Yb)双包层掺杂光纤。 输入电脉冲驱动DFB激光二极管发出光脉冲,然后由光放大器放大。 主动和被动冷却元件可以并入,用于连续操作而不需要休息时间。 用于间歇脉冲应用的无源冷却允许通过消除主动冷却元件和相关电源和控制器来使激光源小型化。 低占空比减轻驱动要求,进一步减小尺寸。 PFLS可用于长距离测距,通过逆向调制进行通信,以及在存在大气衰减的情况下进行通信。

    Hermetic pump module for double cladding fiber amplifiers and method for making same
    26.
    发明授权
    Hermetic pump module for double cladding fiber amplifiers and method for making same 失效
    双包层光纤放大器的密封泵模块及其制造方法

    公开(公告)号:US06717720B2

    公开(公告)日:2004-04-06

    申请号:US09994788

    申请日:2001-11-28

    Abstract: An apparatus and method of hermetically sealing a pump module for a double cladded fiber in a pump module. The apparatus includes a hermetic pump module for coupling light from a pump source into an optical waveguide. The hermetic pump module includes a hermetically sealed housing, wherein the hermetically sealed housing contains an all-glass double cladded fiber with an outer cladding, an inner cladding, and a core, wherein the double cladded fiber includes a v-groove that extends through the outer cladding into the inner cladding, a pump source that emits a light, and a transparent substrate, bonded to the glass outer cladding with a transparent adhesive, wherein the light passes through the transparent substrate and into the all-glass double cladded fiber and the v-groove couples the light into the all-glass double cladded fiber. Alternatively, the substrate may be eliminated and the light directly coupled into the all-glass double cladded fiber.

    Abstract translation: 一种在泵模块中密封双层包覆纤维的泵模块的装置和方法。 该装置包括用于将来自泵浦源的光耦合到光波导中的密封泵模块。 密封泵模块包括气密密封的壳体,其中密封的壳体包含具有外包层,内包层和芯的全玻璃双包层光纤,其中双包层光纤包括延伸穿过 外包层,发射光的泵浦源和透明基板,透明粘合剂结合到玻璃外包层,其中光穿过透明基板并进入全玻璃双包层光纤,并且 v型槽将光线连接到全玻璃双层包覆纤维中。 或者,可以去除衬底,并且将光直接耦合到全玻璃双包层光纤中。

    Red light source
    27.
    发明授权
    Red light source 失效
    红光源

    公开(公告)号:US06256327B1

    公开(公告)日:2001-07-03

    申请号:US08940737

    申请日:1997-09-30

    Applicant: Lew Goldberg

    Inventor: Lew Goldberg

    CPC classification number: G02F1/3534 H01S3/109

    Abstract: A narrow band, high power and coherent source of red light in the red (600-650 nm) spectral region is disclosed. The red light source comprises a first optical source for emitting a first light beam at a first wavelength, a second optical source for emitting a second light beam at a second wavelength, a combiner for combining the first and second light beams to produce a combined beam, and a nonlinear crystal responsive to the combined beam for producing a sum frequency light beam of red light.

    Abstract translation: 公开了红色(600-650nm)光谱区域中的窄带,高功率和相干的红光源。 红光源包括用于发射第一波长的第一光束的第一光源,用于发射第二波长的第二光束的第二光源,用于组合第一和第二光束以产生组合光束的组合器 以及响应于组合光束的非线性晶体,用于产生红光的和频光束。

    Compound-cavity, high-power, modelocked semiconductor laser
    28.
    发明授权
    Compound-cavity, high-power, modelocked semiconductor laser 失效
    复合腔,大功率,锁模半导体激光器

    公开(公告)号:US5561676A

    公开(公告)日:1996-10-01

    申请号:US383643

    申请日:1995-02-06

    Applicant: Lew Goldberg

    Inventor: Lew Goldberg

    Abstract: The invention is for a new type of an efficient and compact laser system, based on semiconductor gain medium, which produces high peak power. The laser system comprises: a compound cavity laser defined by first and second reflective elements; a developing structure, having a first end containing the first reflective element and a second end, being disposed in the compound cavity laser and being responsive to an RF frequency signal within a preselected RF frequency range for developing and reflecting from the first reflective element modelocked laser pulses at a selected wavelength; a first amplifier disposed between the developing structure and the second reflective element and being responsive to the reflected modelocked laser pulses from the developing structure for amplifying the modelocked laser pulses at the selected wavelength, the first amplifier having an end containing the second reflective element for transmitting a first portion of the amplified modelocked laser pulses therethrough and for reflecting a second portion of the amplified modelocked laser pulses back toward the developing structure; and a nonlinear element for converting the first portion of the amplified modelocked laser pulses from said first amplifier to amplified modelocked laser pulses at a desired frequency-converted wavelength.

    Abstract translation: 本发明是用于产生高峰值功率的基于半导体增益介质的新型高效紧凑的激光系统。 激光系统包括:由第一和第二反射元件限定的复合腔激光器; 显影结构,具有包含第一反射元件的第一端和第二端,设置在复合腔激光器中,并且响应于预选RF频率范围内的RF频率信号,用于从第一反射元件锁模激光器 选定波长的脉冲; 第一放大器,其布置在显影结构和第二反射元件之间,并且响应来自显影结构的反射的锁模激光脉冲,用于放大所选择的波长处的锁模激光脉冲,第一放大器具有包含用于传输的第二反射元件的端 放大的锁模激光脉冲的第一部分通过其中并且用于将放大的锁模激光脉冲的第二部分反射回显影结构; 以及非线性元件,用于将放大的锁模激光脉冲的第一部分从所述第一放大器转换到所需频率转换波长的放大锁模激光脉冲。

    Bi-directional optical transmission system for RF electrical energy
    29.
    发明授权
    Bi-directional optical transmission system for RF electrical energy 失效
    射频电能双向光传输系统

    公开(公告)号:US5066148A

    公开(公告)日:1991-11-19

    申请号:US560702

    申请日:1990-07-31

    CPC classification number: H04B10/40 G02B6/4246

    Abstract: A bi-directional optical transmission system for radio frequency electricalnergy includes first and second transmitter/receiver stations which transmit and receive light signals along an optical path therebetween. Each station includes a laser transmitter for transmitting a carrier light beam which is intensity modulated by a synchronization of an input radio frequency electrical signal. A photodetector at each station detects the intensity variations of the carrier light beam from the other station and outputs a respective radio frequency electrical signal which is synchronized with the radio frequency electrical input signal of the other station. A beam splitter is provided between the optical path at both the laser transmitter and photodetector to split the light beams incident thereon into a pass portion and angularly reflected portion. An isolator device also is provided between the laser transmitter and beam splitter to isolate the laser transmitter from back reflections. Preferably, the isolator is a Faraday isolator, and additionally or alternatively the laser transmitters transmit at widely separate wavelengths. The optical path can either be free space or a main optical fiber, and the synchronization of the input radio frequency electrical energy can either be phase synchronization or time synchronization.

    Abstract translation: 用于射频电能的双向光传输系统包括沿其间的光路发送和接收光信号的第一和第二发射机/接收机站。 每个站包括用于发射由输入射频电信号的同步强度调制的载波光束的激光发射器。 每个站的光电检测器检测来自另一个站的载波光束的强度变化,并输出与另一个站的射频电输入信号同步的各个射频电信号。 在激光发射器和光电检测器之间的光路之间设置分束器,以将入射在其上的光束分成通过部分和角度反射部分。 在激光发射器和分束器之间还设有隔离器装置,以将激光发射器与背反射隔离。 优选地,隔离器是法拉第隔离器,并且附加地或替代地,激光发射器以广泛分开的波长发射。 光路可以是自由空间或主光纤,并且输入射频电能的同步可以是相位同步或时间同步。

    Ring laser cavities
    30.
    发明授权
    Ring laser cavities 失效
    环激光腔

    公开(公告)号:US4905252A

    公开(公告)日:1990-02-27

    申请号:US245176

    申请日:1988-09-16

    CPC classification number: H01S5/1071 H01S3/0805 H01S3/083 H01S5/14 H01S5/2036

    Abstract: Diffraction limited, single narrow lobe radiation from a large area laser is achieved in a system using an external ring laser cavity to return radiation to the laser via a spatial filter and a Faraday rotator. An antireflectance coating of sufficiently small reflectivity added to the large area laser converts it into a laser amplifier which provides optical gain in a ring laser cavity.

    Abstract translation: 在使用外部环形激光腔的系统中,通过空间滤波器和法拉第旋转器将辐射返回激光器,实现了衍射限制,来自大面积激光器的单窄波长辐射。 添加到大面积激光器中的足够小的反射率的抗反射涂层将其转换成在环形激光腔中提供光学增益的激光放大器。

Patent Agency Ranking