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1. 发明申请

WO2008105912A3 PULSED COHERENT FIBER ARRAY LASER AND ITS METHOD OF OPERATION 审中-公开
标题翻译：脉冲相干光纤阵列激光器及其操作方法
公开(公告)号：WO2008105912A3
公开(公告)日：2008-11-06
申请号：PCT/US2007075374
申请日：2007-08-07
申请人： NORTHROP GRUMMAN SPACE & MSN , CHEUNG ERIC C T , RICE ROBERT R , WICKHAM MICHAEL G , WEBER MARK E
发明人： CHEUNG ERIC C T , RICE ROBERT R , WICKHAM MICHAEL G , WEBER MARK E
IPC分类号： H01S3/23 , H01S3/067
CPC分类号： H01S3/2383 , G01J9/00 , H01S3/0085 , H01S3/06754 , H01S3/09415 , H01S3/10015 , H01S3/10053
摘要： A pulsed coherent fiber array laser system that includes a beam generating sub-system (12) that provides a signal pulse beam (14) having pulses of the desired duration that is split into several fiber channels. Optical leakage between the pulses in each split beam is measured and locked to a reference beam (16) by a phase sensing circuit (38) and phase adjusters (28) so that the phase of each fiber pulsed beam is aligned with the phase of the reference beam. A pulse clipper (36) or filter is employed to remove the pulses in the fiber beams so that they do not saturate the phase sensing circuit. The beam generating sub-> system can employ any suitable combination of devices to generate the signal beam and the reference beam, including continuous wave master oscillators, amplitude modulators, frequency shifters, injection seed oscillators, Q-switched lasers, reference oscillators, frequency lockers, wavelength division multiplexers, time gated switches, etc.
摘要翻译：一种脉冲相干光纤阵列激光系统，其包括光束产生子系统（12），其提供具有被分成若干光纤通道的期望持续时间的脉冲的信号脉冲光束（14）。通过相位检测电路（38）和相位调节器（28）测量每个分束中的脉冲之间的光泄漏并将其锁定到参考光束（16），使得每个光纤脉冲光束的相位与参考光束。采用脉冲削波器（36）或滤波器去除光纤中的脉冲，使得它们不会使相位感测电路饱和。光束产生子系统可以采用任何合适的设备组合来产生信号光束和参考光束，包括连续波主振荡器，幅度调制器，移相器，注入种子振荡器，Q开关激光器，参考振荡器，频率储存器，波分复用器，时间选通开关等

2. 发明申请

WO2006001838A2 SCALABLE HARMONIC LASER SOURCE AND METHOD 审中-公开
标题翻译：可调谐谐波激光源和方法
公开(公告)号：WO2006001838A2
公开(公告)日：2006-01-05
申请号：PCT/US2005000754
申请日：2005-01-11
申请人： NORTHROP GRUMMAN CORP , ROTHENBERG JOSHUA E , CHEUNG ERIC C T , KOMINE HIROSHI , WICKHAM MICHAEL G
发明人： ROTHENBERG JOSHUA E , CHEUNG ERIC C T , KOMINE HIROSHI , WICKHAM MICHAEL G
IPC分类号： H01S3/00 , G02F1/37 , H01S3/067 , H01S3/08 , H01S3/10 , H01S3/23 , H01S3/30 , H01S5/14
CPC分类号： H01S5/14 , G02F1/37 , H01S3/06754 , H01S3/2383
摘要： A laser array architecture scalable to very high powers by closely stacking fiber amplifiers, but in which the output wavelength is selectable to be in the visible or ultraviolet region, without being restricted by the wavelengths usually inherent in the choice of fiber materials. A pump signal at a fundamental frequency is amplified in the fiber amplifier array and input to an array of nonlinear crystals that function as harmonic generators, producing an output array at a desired harmonic of the fundamental frequency. A phase detection and correction system maintains the array of outputs in phase coherency, resulting in a high power output with high beam quality, at the desired frequency. The array of nonlinear crystals may a single array to produce a second harmonic output frequency, or a combination of multiple cascaded arrays configured to produce a selected higher order harmonic frequency.
摘要翻译：通过紧密地堆叠光纤放大器，可将激光器阵列架构扩展到非常高的功率，但其中输出波长可选择在可见光或紫外区域，而不受光纤材料选择固有的波长限制。基频处的泵浦信号在光纤放大器阵列中被放大并输入到用作谐波发生器的非线性晶体阵列，从而以期望的基频谐波产生输出阵列。相位检测和校正系统使输出阵列保持相位一致性，以期望的频率产生具有高光束质量的高功率输出。非线性晶体阵列可以是产生二次谐波输出频率的单个阵列，或者是配置成产生选定的更高次谐波频率的多个级联阵列的组合。

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