| 多模激光调节相干长度外差干涉技术 |
| |
| 引用本文： | 方仲彦,韩森. 多模激光调节相干长度外差干涉技术[J]. 中国激光, 1996, 23(8): 687-691 |
| |
| 作者姓名： | 方仲彦 韩森 |
| |
| 作者单位： | 清华大学精仪系，长春光机学院光电工程系 |
| |
| 摘 要： | 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。该系统具有功率大、分辨率高、测头小、不接触等优点。实验证明，该系统达到优于１ｎｍ的分辨能力，可用于人体耳膜振动特性的测试与研究。
|
| 关 键 词： | 多模激光，相干长度，耳膜测量 |
| 收稿时间： | 1995-08-23 |
An Optical Heterodyne Interferometer Using a Multi-mode Laser Source to Modulate Coherent Length |
| |
| Fang Zhongyan. An Optical Heterodyne Interferometer Using a Multi-mode Laser Source to Modulate Coherent Length[J]. Chinese Journal of Lasers, 1996, 23(8): 687-691 |
| |
| Authors: | Fang Zhongyan |
| |
| Abstract: | 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. The sensor is small and works under a non-contact condition. It is proved experimentally that this system's resolution reaches into quasi-nm,making possible the detection of the vibrating characteristics of the human ear membrane. |
| |
| Keywords: | multi-mode laser coherent length ear membrane measurement |
| 本文献已被 CNKI 等数据库收录！ |
