公开(公告)号：US4413342A

公开(公告)日：1983-11-01

申请号：US208511

申请日：1980-11-20

申请人： Martin G. Cohen ,  Kuo-ching Liu

发明人： Martin G. Cohen ,  Kuo-ching Liu

IPC分类号： G02F1/37 ,  H01S3/109 ,  H01S3/10

CPC分类号： H01S3/109

摘要： A method and apparatus for providing coincident orthogonally-polarized laser beams having twice the frequency of a fundamental frequency emitted by a laser source is disclosed. A second harmonic generator within a laser resonator cavity causes frequency-doubled laser beams to travel in opposite directions along an axis thereon. One of the beams undergoes a polarization change of substantially 90.degree. and is returned for travel along the laser axis in the same direction as a second frequency-doubled beam which has not undergone a polarization change. The orthogonally-polarized beams are then emitted through an output mirror designed for transmitting beams of twice the frequency of the fundamental beam.

摘要翻译： 公开了一种用于提供具有由激光源发射的基频频率的两倍的重合正交偏振激光束的方法和装置。 激光谐振腔内的二次谐波发生器使倍频激光束沿着其轴线沿相反方向行进。 一个光束经历大致90°的偏振变化，并且沿着与没有经历偏振变化的第二倍频光束相同的方向沿着激光轴返回。 然后通过设计用于发射基波束频率的两倍的波束的输出反射镜发射正交偏振光束。