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    • 2. 发明授权
    • Robust seeding technique for single mode laser oscillation
    • 用于单模激光振荡的鲁棒播种技术
    • US07099356B2
    • 2006-08-29
    • US10440600
    • 2003-05-19
    • Hiroshi KomineJames G. HoHagop InjeyanStephen J. Brosnan
    • Hiroshi KomineJames G. HoHagop InjeyanStephen J. Brosnan
    • H01S3/098
    • H01S3/10092
    • A method is provided for seeding laser system (10) for single longitudinal mode oscillation. The method includes coupling laser system (10) to be seeded for single mode output to a seed laser radiation source (12). Next, the frequency capture range (44) and spacing (46) of the axial modes (42) of the cavity (24) of the laser system (10) are determined. A seed spectrum (36) is then generated from the seed laser radiation source (12) with a bandwidth (40) corresponding to the axial mode spacing (46). The seed spectrum (36) includes a comb of discrete frequency components (38) with one or more of the discrete frequency components (38) being within the frequency capture range (44) of at least one of the axial modes (42). The seed spectrum (36) is then injected into the cavity (24) such that at least one of the axial modes (42) oscillates with the seed radiation.
    • 提供一种用于种子激光系统(10)用于单纵模振荡的方法。 该方法包括将要种子化的激光系统(10)耦合到单模输出到种子激光辐射源(12)。 接下来,确定激光系统(10)的空腔(24)的轴向模式(42)的频率捕获范围(44)和间隔(46)。 然后从具有对应于轴向模式间隔(46)的带宽(40)从种子激光辐射源(12)产生种子谱(36)。 种子谱(36)包括离散频率分量(38)的梳齿,其中一个或多个离散频率分量(38)在至少一个轴向模式(42)的频率捕获范围(44)内。 然后将种子光谱(36)注入到空腔(24)中,使得轴向模式(42)中的至少一个与种子辐射振荡。
    • 3. 发明授权
    • High efficiency solid state raman laser system
    • 高效固态拉曼激光系统
    • US5796761A
    • 1998-08-18
    • US712251
    • 1996-09-11
    • Hagop InjeyanEric C. CheungJames G. Ho
    • Hagop InjeyanEric C. CheungJames G. Ho
    • H01S3/30
    • H01S3/30H01S3/08054H01S3/094026H01S3/109
    • A high efficiency solid state Raman laser system for shifting the frequency of an input beam emitted by a laser pumping system is described. The laser pumping system suppresses relaxation oscillations in the input beam and emits a constant power, mode-locked pulse train. A solid Raman medium is disposed inside a Raman resonator cavity to shift the frequency of the input beam to produce a Raman beam. The frequency of the Raman beam is finely tuned in the resonator cavity to eliminate high order Raman shifted wavelengths. The polarization of the Raman beam is selected using a polarizing element disposed in the resonator cavity. The Raman beam frequency is shifted using a non-linear medium inside the resonator cavity. The non-linear medium is preferably a frequency doubler. The Raman laser system is particularly suitable for producing high-quality yellow light for guide star applications.
    • 描述了用于移动由激光泵送系统发射的输入光束的频率的高效率固态拉曼激光器系统。 激光泵浦系统抑制输入光束中的松弛振荡,并发出恒定功率的锁模脉冲串。 固体拉曼介质设置在拉曼谐振腔内部,以移动输入光束的频率以产生拉曼光束。 拉曼光束的频率在谐振腔内被微调,以消除高阶拉曼偏移波长。 使用设置在谐振器腔中的偏振元件来选择拉曼光束的偏振。 拉曼光束频率使用谐振腔内的非线性介质移位。 非线性介质优选为倍频器。 拉曼激光系统特别适用于生产用于导星应用的高品质黄光。
    • 8. 发明授权
    • Co-alignment of time-multiplexed pulsed laser beams to a single reference point
    • 时间复用的脉冲激光束与单个参考点的共同对准
    • US06816535B2
    • 2004-11-09
    • US10244966
    • 2002-09-17
    • James G. HoJames H. Poylio
    • James G. HoJames H. Poylio
    • H01S308
    • G01B11/272
    • An alignment system for co-aligning multiple laser beams to a single spatial reference point in real time. The alignment system includes a beam sampler for sampling the multiple pulsed laser beams. The sampled laser beams are directed onto a quadrant photo detector or quad cell. The output signals from the quad cell are directed to a detector signal integration circuit which develops error signals for driving tip-tilt mirrors in the beam path of the multiple lasers. The system includes a gate, reset and pulse ID generator for generating pulse trigger signals for each of the multiple lasers and signals for correlating the detector signals with the laser that produced the signal. Accordingly, a system is provided for a time multiplexed, multiple laser system which automatically co-aligns the output beams from each of the lasers to a single spatial reference point in real time.
    • 用于将多个激光束实时地对齐到单个空间参考点的对准系统。 对准系统包括用于对多个脉冲激光束进行采样的光束采样器。 采样的激光束被引导到象限光电检测器或四通道单元上。 来自四通道单元的输出信号被引导到检测器信号积分电路,其产生用于驱动多个激光器的光束路径中的尖端倾斜反射镜的误差信号。 该系统包括一个门,复位和脉冲ID发生器,用于产生用于多个激光器中的每一个的脉冲触发信号和用于使检测器信号与产生该信号的激光相关联的信号。 因此,提供了一种用于时间复用的多激光系统的系统,其将来自每个激光器的输出光束自动地对齐到单个空间参考点。