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    PLANAR WAVEGUIDE LASER DEVICE
    53.
    发明申请
    PLANAR WAVEGUIDE LASER DEVICE 有权
    平面波导激光器件

    公开(公告)号：US20100189151A1

    公开(公告)日：2010-07-29

    申请号：US12669966

    申请日：2007-07-27

    Applicant: Takayuki Yanagisawa ,  Yoshihito Hirano ,  Shuhei Yamamoto ,  Yasuharu Koyata

    Inventor： Takayuki Yanagisawa ,  Yoshihito Hirano ,  Shuhei Yamamoto ,  Yasuharu Koyata

    IPC: H01S5/327 ,  H01S5/10

    CPC classification number: H01S3/0632 ,  H01S3/0612 ,  H01S3/0625 ,  H01S3/10061 ,  H01S3/1308 ,  H01S3/1611 ,  H01S3/1673

    Abstract: A planar waveguide laser device forms a waveguide by a plate-like laser medium having birefringence and clad attached to at least one of the surfaces of the laser medium perpendicular to its thickness direction, amplifies laser light by a gain produced by excitation light incident on the laser medium, and performs laser oscillation. The laser medium is formed of a material having an optic axis on a cross section perpendicular to the light axis, which is the laser travelling direction. The clad is formed of a material having a refractive index in a range between refractive indexes of two polarized lights that travel along the light axis in the laser medium and have oscillation surfaces that are orthogonal to each other. The planar waveguide laser device readily oscillates linearly polarized laser light.

    Abstract translation: 平面波导激光器件通过具有双折射和包层的板状激光介质形成波导，激光介质垂直于其厚度方向附着在激光介质的至少一个表面上，通过由入射到其上的激发光产生的增益来放大激光 激光介质，进行激光振荡。 激光介质由在垂直于作为激光行进方向的光轴的横截面上具有光轴的材料形成。 包层由折射率在激光介质中沿着光轴行进的两个偏振光的折射率之间的范围内的材料形成，并且具有彼此正交的振动表面。 平面波导激光器件容易振荡线偏振激光。

    SINGLE-LONGITUDINAL MODE LASER WITH ORTHOGONAL-POLARIZATION TRAVELING-WAVE MODE
    54.
    发明申请
    SINGLE-LONGITUDINAL MODE LASER WITH ORTHOGONAL-POLARIZATION TRAVELING-WAVE MODE 有权
    具有正交偏振行波模式的单纵向模式激光

    公开(公告)号：US20100074280A1

    公开(公告)日：2010-03-25

    申请号：US12237735

    申请日：2008-09-25

    Applicant: Yingjun Ma ,  Shijie Gu ,  Li Wu ,  Hehui Wu ,  Weimin Chen ,  Yanli Wang

    Inventor： Yingjun Ma ,  Shijie Gu ,  Li Wu ,  Hehui Wu ,  Weimin Chen ,  Yanli Wang

    IPC: H01S3/10

    CPC classification number: H01S3/08031 ,  H01S3/08036 ,  H01S3/08054 ,  H01S3/09415 ,  H01S3/10061 ,  H01S3/1028 ,  H01S3/1611 ,  H01S3/1671 ,  H01S3/1673

    Abstract: A single longitudinal-mode laser includes a first mirror and a second mirror that define a laser cavity therein that does not include a linear polarizer. A birefringent gain medium can generate a lasing light at a lasing wavelength along a light propagation direction in response to a pump light at a pumping wavelength. The birefringent gain medium has an optical axis substantially perpendicular to the light propagation direction. A first wave plate positioned between the first mirror and the birefringent gain medium is a quarter wave plate at the lasing wavelength and a whole wave plate at the pumping wavelength. A second wave plate is positioned between the birefringent gain medium and the second mirror. The first wave plat and the second wave plate in part produce a single longitudinal mode in the lasing light.

    Abstract translation: 单个纵模激光器包括在其中限定不包括线性偏振器的激光腔的第一反射镜和第二反射镜。 双折射增益介质可以响应泵浦波长的泵浦光沿光传播方向产生激发波长的激光。 双折射增益介质具有基本上垂直于光传播方向的光轴。 位于第一反射镜和双折射增益介质之间的第一波片是激光波长的四分之一波片和在泵浦波长处的整个波片。 第二波片位于双折射增益介质和第二反射镜之间。 第一波片和第二波片部分地在激光中产生单一纵模。

    Systems and methods for controlling a pulsed laser by combining laser signals
    55.
    发明申请
    Systems and methods for controlling a pulsed laser by combining laser signals 有权
    通过组合激光信号控制脉冲激光的系统和方法

    公开(公告)号：US20100040095A1

    公开(公告)日：2010-02-18

    申请号：US12229043

    申请日：2008-08-18

    Applicant: Michael M. Mielke ,  Robert G. Waarts ,  Sha Tong ,  Kok Wai Chang

    Inventor： Michael M. Mielke ,  Robert G. Waarts ,  Sha Tong ,  Kok Wai Chang

    IPC: H01S3/10

    CPC classification number: H01S3/0057 ,  H01S3/06754 ,  H01S3/10046 ,  H01S3/10061 ,  H01S3/1302 ,  H01S3/2308 ,  H01S3/2383 ,  H01S2301/02

    Abstract: An ultra-short pulsed laser system comprises an optical combiner, optical amplifier, optical pulse compressor, and optical separator. The optical combiner is configured to combine a primary optical pulse with a secondary optical signal to generate a combined optical signal. The primary optical pulse and the secondary optical signal have a distinguishable characteristic. The optical amplifier is configured to optically amplify the combined optical signal. The optical pulse compressor is configured to compress at least the primary optical pulse contained within the optically amplified combined optical signal and output a compressed combined optical signal. The optical separator is configured to separate the compressed combined optical signal into an output primary optical pulse and an output secondary optical signal according to the distinguishable characteristic.

    Abstract translation: 超短脉冲激光系统包括光学组合器，光放大器，光脉冲压缩器和光分离器。 光组合器被配置为将初级光脉冲与次光信号组合以产生组合的光信号。 主光脉冲和次光信号具有可区分的特性。 光放大器被配置为光学放大组合的光信号。 光脉冲压缩器被配置为至少压缩光放大组合光信号中包含的主光脉冲，并输出压缩的组合光信号。 光分离器被配置为根据可区分的特性将压缩的组合光信号分离成输出主光脉冲和输出次光信号。

    Gas laser with transverse magnetic field
    56.
    发明授权
    Gas laser with transverse magnetic field 失效
    具有横向磁场的气体激光器

    公开(公告)号：US3509487A

    公开(公告)日：1970-04-28

    申请号：US3509487D

    申请日：1966-08-24

    Applicant: PHILIPS CORP

    Inventor： BOUWHUIS GIJSBERTUS ,  LANG HENDRIK DE

    IPC: H01S3/102 ,  H01S3/10

    CPC classification number: H01S3/102 ,  H01S3/10061 ,  H01S3/2222

    Abstract: 1,139,177. Lasers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 6 Sept., 1966 [9 Sept., 1965], No. 39810/66. Heading H1C. A gas laser is located in an unvarying first magnetic field which is transverse of the resonator axis and also in a pulsed second magnetic field which is longitudinal of this axis, the first magnetic field polarizing the output in a plane which can occupy either one of two stable positions located symmetrically with respect to the transverse field, while the direction of the second field determines in which of these positions the output is polarized. By applying the second field for a short duration in the opposite sense, the polarization plane is switched from one stable position to the other. A pulse code modulated output, e.g. delta modulation, is produced by appropriate control of the second magnetic field. A modulator is described, Fig. 1, in which a ducted quartz block 1 is sealed by quartz blocks 3, 4 provided with dichroic mirrors 5, 6, the duct 2 being filled with helium containing 5% of neon. A D.C. gas discharge is produced between electrodes 7 and 8 and the first and second magnetic fields are established by coils 11 and 14 respectively.

    LASER ELEMENT AND ELECTRONIC DEVICE
    58.
    发明公开
    LASER ELEMENT AND ELECTRONIC DEVICE 审中-公开

    公开(公告)号：US20240243550A1

    公开(公告)日：2024-07-18

    申请号：US18559406

    申请日：2022-02-15

    Applicant: SONY GROUP CORPORATION

    Inventor： KENJI TANAKA ,  MASANAO KAMATA

    IPC: H01S5/183 ,  H01S3/0941 ,  H01S3/10 ,  H01S3/113 ,  H01S3/16 ,  H01S5/343

    CPC classification number: H01S5/18305 ,  H01S3/09415 ,  H01S3/10053 ,  H01S3/10061 ,  H01S3/113 ,  H01S3/1618 ,  H01S3/1643 ,  H01S5/34313

    Abstract: Provided is a laser element capable of integrating a plurality of optical elements and inhibiting a standing wave of excitation light or oscillation light. A laser element includes: a laminated semiconductor layer including a first reflection layer and an active layer that performs surface emission at a first wavelength; a laser medium including a second reflection layer on a first surface and a third reflection layer on a second surface; a fourth reflection layer disposed on the rear side of the optical axis with respect to the second surface; a first resonator that causes light of the first wavelength to resonate between the first reflection layer and the third reflection layer; a second resonator that causes light of a second wavelength to resonate between the second reflection layer and the fourth reflection layer; a first polarization conversion element provided between the first reflection layer and the laser medium; a second polarization conversion element provided between the second reflection layer and the laser medium, and at least one of first or second polarization control element provided between the first reflection layer and the fourth reflection layer. The optical axis of the laminated semiconductor layer, an optical axis of the laser medium, and optical axes of the first and second polarization conversion elements and the first or second polarization control element are coaxially arranged.

    Tunable external cavity laser with dual gain chips
    60.
    发明授权
    Tunable external cavity laser with dual gain chips 有权

    公开(公告)号：US11978996B2

    公开(公告)日：2024-05-07

    申请号：US17550046

    申请日：2021-12-14

    Applicant: INSTITUTE OF SEMICONDUCTORS, CHINESE ACADEMY OF SCIENCES

    Inventor： Changda Xu ,  Dechao Ban ,  Wenhui Sun ,  Wei Chen ,  Ninghua Zhu ,  Ming Li

    IPC: H01S3/106 ,  H01S3/00 ,  H01S3/10

    CPC classification number: H01S3/1062 ,  H01S3/0064 ,  H01S3/10061

    Abstract: A tunable external cavity laser with dual gain chips, including: a polarization beam splitter having a beam splitting surface arranged at an angle of 45° with respect to a first direction and a second direction perpendicular to the first direction; a first gain chip arranged in the first direction; a second gain chip arranged in the second direction; a feedback cavity arranged in the first direction, wherein the feedback cavity and the first gain chip are respectively arranged on two opposite sides of the polarization beam splitter, and the feedback cavity includes at least one independent Fabry-Perot etalon, at least one air gap Fabry-Perot cavity and a mirror that are arranged in the first direction. The polarization beam splitter and the two gain chips cooperate to share the feedback cavity, so that a wavelength and a phase may be adjusted, and a larger tuning range may be obtained.

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