| Quasi-common-path laser feedback interferometers for precision measurement of non-cooperative | |
| Wan, X.J. ; Zhang, S.L. | |
| 2010-10-12 ; 2010-10-12 | |
| 关键词 | Practical Experimental/ displacement measurement light interferometry measurement by laser beam/ quasi-common-path laser feedback interferometers precision measurement noncooperative targets noncontact displacement measurement target-generated feedback light reference feedback light heterodyne detection target displacement laser instability/ B4360E Metrological applications of lasers B7320C Spatial variables measurement |
| 中文摘要 | In this paper, we report a novel quasi-common-path laser feedback interferometer (QLFI) for highly stable, high-resolution and non-contact displacement measurement. QLFI measures the displacement of the target by measuring the phase of feedback light. In addition to the target-generated feedback light (frequency shifted by 2 Omega ), a reference mirror generates a reference feedback light which is frequency shifted by Omega . The phase variations of both feedback lights are measured by heterodyne detection simultaneously and their difference offers the phase variations caused only by target displacement. When the optical path lengths of the reference and measuring feedback light are nearly the same, the phase fluctuations caused by the environment and laser instability are effectively removed. The heat-induced deformation of a He-Ne laser tube is successfully in-line measured using QLFI. |
| 语种 | 英语 |
| 出版者 | Trans Tech Publications Ltd. ; Switzerland |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/80213]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | Wan, X.J.,Zhang, S.L.. Quasi-common-path laser feedback interferometers for precision measurement of non-cooperative[J],2010, 2010. |
| APA | Wan, X.J.,&Zhang, S.L..(2010).Quasi-common-path laser feedback interferometers for precision measurement of non-cooperative.. |
| MLA | Wan, X.J.,et al."Quasi-common-path laser feedback interferometers for precision measurement of non-cooperative".(2010). |
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