CAJ | 학술논문

针对环形光刀取样式高能激光光强分布测量系统的要求，研制了以圆弧反射面环形光刀架构的光取样器，实现了对激光束的在线取样测量。光取样器的取样光刀外形设计为环形光刀，可对取样光束进行周向扩展，满足半数以上探测器接收取样空间光信号的要求；取样光刀反射面设计为圆弧形，可对取样光束进行切向扩展，使其在增大衰减倍率的同时降低系统对光的难度。通过光取样器具体设计参数的计算，获得了满足探测单元与反射光束耦合孔径角要求的参数设计范围。实验表明，研制的光取样器可有效用于大面积高能激光束的在线测量。
침대배형광도취양식고능격광광강분포측량계통적요구，연제료이원호반사면배형광도가구적광취양기，실현료대격광속적재선취양측량。광취양기적취양광도외형설계위배형광도，가대취양광속진행주향확전，만족반수이상탐측기접수취양공간광신호적요구；취양광도반사면설계위원호형，가대취양광속진행절향확전，사기재증대쇠감배솔적동시강저계통대광적난도。통과광취양기구체설계삼수적계산，획득료만족탐측단원여반사광속우합공경각요구적삼수설계범위。실험표명，연제적광취양기가유효용우대면적고능격광속적재선측량。
To fulfill the requirements of the high energy laser beam online sampling diagnosis, an optical sampler based on circular reflector is developed. The optical sampler is circularly shaped, expending the beam circularly, which enables more than half of the detectors to receive the sampling beam. The reflecting surface is arc-shaped, expending the beam perpendicularly, which simplifies the alignment, while increasing the attenuation factor. Appropriate variation ranges of certain parameters are specified through numerical simulation, satisfying the requests of the coupling aperture angle between the detector and the reflected laser beam. Experiments show that this optical sampler can be used in the online diagnosis of high energy lasers with large beam profiles.