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    Mobile charge induced periodic poling and device
    3.
    发明授权
    Mobile charge induced periodic poling and device 有权
    移动电荷引起周期性极化和器件

    公开(公告)号：US07652815B2

    公开(公告)日：2010-01-26

    申请号：US12034138

    申请日：2008-02-20

    Applicant: Lee Lisheng Huang ,  Simon John Field

    Inventor： Lee Lisheng Huang ,  Simon John Field

    IPC: G02F1/35

    CPC classification number: G03B21/14 ,  G02F1/3544 ,  G02F1/3558 ,  G02F1/3775

    Abstract: Devices and methods are disclosed for realizing a high quality bulk domain grating structure utilizing mobile charges that are generated by means of photo-excitation in a substrate. An effect of light exposure (UV, visible, or a combination of wavelengths) is to generate photo-induced charges. The application of a voltage across the substrate combined with the application of light exposure causes a photo-induced current to flow through the substrate. The photo-induced charges (behaving like virtual electrode inside the material) and the photo-induced current result in both reduction of the coercive field required for domain inversion in the material and improve realization of the domain inversion pattern, which previously has not been possible at room temperature.

    Abstract translation: 公开了用于实现利用在衬底中通过光激发产生的移动电荷的高质量体积域光栅结构的装置和方法。 曝光（紫外线，可见光或波长的组合）的影响是产生光诱导电荷。 在施加曝光的情况下，跨基板施加电压导致光感应电流流过基板。 光诱导电荷（表现为材料内部的虚拟电极）和光诱导电流导致材料中域反转所需的矫顽场的减少，并改善以前不可能实现的域反转模式 在室温下。

    SINGLE LONGITUDINAL MODE LASER DIODE SYSTEM
    4.
    发明申请
    SINGLE LONGITUDINAL MODE LASER DIODE SYSTEM 审中-公开

    公开(公告)号：US20200266607A1

    公开(公告)日：2020-08-20

    申请号：US16795784

    申请日：2020-02-20

    Applicant: NECSEL INTELLECTUAL PROPERTY, INC.

    Inventor： Boris Leonidovich Volodin ,  Vladimir Sinisa Ban ,  Sergei Dolgy

    IPC: H01S5/065 ,  H01S5/14 ,  H01S5/0687

    Abstract: A semiconductor laser diode system may include a single longitudinal mode laser diode and a feedback system that monitors and controls the emission characteristics of the laser diode. The laser diode may include a gain medium and an optical feedback device. The feedback system may include a wavelength discriminator, an optical detector, a microprocessor, and a laser controller. Such a semiconductor laser diode system may be used to produce laser light having coherence length, wavelength precision, and wavelength stability that is equivalent to that of a gas laser. Accordingly, such a semiconductor laser diode system may be used in place of a traditional gas laser.

    High-power, phased-locked, laser arrays
    7.
    发明授权
    High-power, phased-locked, laser arrays 有权

    公开(公告)号：US09748730B2

    公开(公告)日：2017-08-29

    申请号：US15193721

    申请日：2016-06-27

    Applicant: PD-LD, INC.

    Inventor： Boris Leonidovich Volodin

    IPC: H01S5/00 ,  H01S3/13 ,  H01S5/065 ,  H01S5/14 ,  H01S5/40

    CPC classification number: H01S3/1305 ,  H01S5/005 ,  H01S5/065 ,  H01S5/0654 ,  H01S5/141 ,  H01S5/148 ,  H01S5/4012 ,  H01S5/4062 ,  H01S5/4068

    Abstract: High-power, phased-locked, laser arrays as disclosed herein utilize a system of optical elements that may be external to the laser oscillator array. Such an external optical system may achieve mutually coherent operation of all the emitters in a laser array, and coherent combination of the output of all the lasers in the array into a single beam. Such an “external gain harness” system may include: an optical lens/mirror system that mixes the output of all the emitters in the array; a holographic optical element that combines the output of all the lasers in the array, and an output coupler that selects a single path for the combined output and also selects a common operating frequency for all the coupled gain regions.

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