This paper describes a measuring system basing on an optical heterodyne interferometer, which utilizes a multi-mode laser diode and coupled optical fibers to adjust the coherent length of the system.
研究了一种采用多模半导体激光与耦合光纤、采取声光调制及调节相干长度的外差干涉系统。
2
The rhomb has been used in the CO2 laserheterodyne detection system, and the transfer efficiency is more than 93 %.
该菱体较好地用于CO_2激光外差接收系统中，其能量转换效率达到93%以上。
3
The influences of atmospheric turbulence on interference efficiency due to the angle of arrival fluctuation in the laserheterodyne detection system were presented.