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1·The rhomb has been used in the CO2 laser heterodyne 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。

2·This paper presents an optical communication system algorithm with intensity modulation and nonlinear heterodyne detection.

本文提出一种采用光强度调制非线性外差检测的传输方案。

3·Frequency offset locking technology is widely applied in laser heterodyne detection and laser radar, which is of great value.

偏频锁定技术广泛应用于激光的外差探测、激光雷达等方面，具有重要应用价值。

4·The principle and experimental results of phase modulation optical heterodyne detection technique for measuring reflection of optical cavity are described.

本文叙述了用位相调制光外差技术探测光学谐振腔反射特性的原理及实验结果。

5·The influences of atmospheric turbulence on interference efficiency due to the angle of arrival fluctuation in the laser heterodyne detection system were presented.

提出了一套新颖扫描成像系统方案，它综合了共焦扫描方式与光外差探测方法的优点。

6·The heterodyne detection is used to detect the output signal frequency difference between the reference arm and sensing arm, which is caused by the temperature variation.

外差探测用来探测传感臂和参考臂由于温度变化引起的输出信号的频率差异。

7·A heterodyne interference is caused by a frequency modulation of a laser diode (LD) with a ramp injection current, and a linear phase detection is realized.

传感器利用注入结电流直接调频的半导体激光(LD)产生外差干涉，从而实现了干涉相位的线性检测。

8·Optical heterodyne magnetic rotation enhanced velocity modulation spectroscopy (OH-MR-VMS) is an absorption spectroscopic technique for selective detection of the molecular ions.

光外差磁旋转速度调制光谱技术是一种对离子分子选择性测量的高灵敏激光吸收光谱技术。

9·The signal detection principle, preferences and the system performance are discussed in optical fiber Brillouin sensing system based on microwave heterodyne technique.

讨论了微波外差式光纤布里渊传感系统的信号检测原理、参数选择和系统性能。