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    • 7. 发明申请
    • FREQUENCY-TRIPLED FIBER-MOPA
    • 频率三极纤维MOPA
    • WO2013122695A1
    • 2013-08-22
    • PCT/US2013/020702
    • 2013-01-08
    • COHERENT, INC.
    • STARODOUMOV, Andrei
    • H01S3/067H01S3/00G02F1/35H01S3/10
    • H01S3/0092G02F2001/354H01S3/005H01S3/0064H01S3/06712H01S3/06758H01S3/10015H01S3/10023H01S3/2333H01S2301/03
    • In a frequency-tripled fiber-MOPA, a plane-polarized seed-pulse having a fundamental frequency is pre-amplified (16). Subsequently, the polarisation is rotated by 45° with half-wave plate (20), creating two orthogonally polarised pulses (PF1,PF2), which may be delayed (42) in time. The fundamental-wavelength pulse- components are amplified in a common amplifier-fiber (22)utilizing a polarisation maintaining fibre (22A). The amplified components are separately propagated on different optical paths. One of the amplified components is frequency-doubled (26). The frequency- doubled component (P2H) on one path and fundamental-frequency component (PF2) on the other path are then combined on a common- path and sum-frequency mixed (36) to provide a frequency-tripled pulse.
    • 在频率三倍的光纤MOPA中,具有基频的平面偏振种子脉冲被预放大(16)。 随后,半波片(20)将极化旋转45°,产生两个正交偏振脉冲(PF1,PF2),可在时间上延迟(42)。 基波长脉冲分量在利用偏振保持光纤(22A)的普通放大器光纤(22)中被放大。 放大的分量在不同的光路上分别传播。 其中一个放大的组件是倍频(26)。 然后将一个路径上的倍频分量(P2H)和另一路径上的基频分量(PF2)组合在共路径和和频混频(36)上以提供三倍频的脉冲。
    • 9. 发明申请
    • LINEAR ADAPTIVE OPTICS SYSTEM IN LOW POWER BEAM PATH AND METHOD
    • 线性自适应光学系统在低功率光束路径和方法
    • WO2008133648A3
    • 2008-12-18
    • PCT/US2007023178
    • 2007-11-02
    • RAYTHEON CO
    • BYREN ROBERT WKING WILLIAM BFILGAS DAVID M
    • G02B27/00G02B26/06
    • G02B26/06F41H13/005G02B27/0037H01S3/0014H01S3/005H01S3/1307H01S3/2308H01S3/2333
    • A system and method for providing a wavefront corrected high-energy beam of electromagnetic energy. In the illustrative embodiment, the system includes a source of a first beam of electromagnetic energy; an amplifier for amplifying said beam to provide a second beam; a sensor for sensing aberration in said second beam and providing an error signal in response thereto; a processor for processing said error signal and providing a correction signal in response thereto; and a spatial light modulator responsive to said correction signal for adjusting said beam to facilitate a correction of said aberration thereof. In more specific embodiments, the source is a laser and the sensor is a laser wavefront sensor. A mirror is disposed between said modulator and said sensor for sampling said beam. The mirror has an optical thin- film dielectric coating on at least one optical surface thereof. The coating is effective to sample said beam and transmit a low power sample thereof to said means for sensing aberration. The processor is an adaptive optics processor. The spatial light modulator may be a micro electro-mechanical system deformable mirror or an optical phased array. In the illustrative embodiment, the source is a master oscillator and the amplifier is a power amplifier beamline. An outcoupler is disposed between the oscillator and the amplifier.
    • 一种用于提供电波能量的波前校正高能束的系统和方法。 在说明性实施例中,系统包括第一电磁能束的源; 放大器,用于放大所述光束以提供第二光束; 传感器,用于检测所述第二光束中的像差并响应于此产生误差信号; 用于处理所述误差信号并响应于此提供校正信号的处理器; 以及响应于所述校正信号调整所述光束以有助于校正所述像差的空间光调制器。 在更具体的实施例中,源是激光,传感器是激光波前传感器。 在所述调制器和所述传感器之间设置一个反射镜,用于采样所述光束。 反射镜在其至少一个光学表面上具有光学薄膜电介质涂层。 所述涂层对所述光束进行采样是有效的,并将低功率样品传送到所述用于感测像差的装置。 处理器是自适应光学处理器。 空间光调制器可以是微电子机械系统可变形反射镜或光学相控阵列。 在说明性实施例中,源是主振荡器,放大器是功率放大器束线。 在振荡器和放大器之间设置一个输出耦合器。