Dual-frequency green laser interferometer based on a frequency stabilized 543.5nm Zeeman He-Ne laser
| Autor: | Nanhai Song, Jing Lei, Juqun Yan |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Physics
Atom interferometer business.industry Astrophysics::Instrumentation and Methods for Astrophysics Physics::Optics Michelson interferometer Mach–Zehnder interferometer Laser law.invention Interferometry White light scanner Optics law Astronomical interferometer business Twyman–Green interferometer |
| Zdroj: | SPIE Proceedings. |
| ISSN: | 0277-786X |
| DOI: | 10.1117/12.806697 |
| Popis: | A dual-frequency laser interferometer is established based on a frequency-stabilized 543.5nm Zeeman He-Ne laser. The interferometer has been tested in displacement measuring experiments in comparison with a commercial 632.8nm dualfrequency laser interferometer. Test results show that the achieved stability and the accuracy of the dual-frequency green laser interferometer have reached the level in commercial dual-frequency interferometers. Apart from being capable in heterodyne interferometry as a single-wavelength interferometer, the 543.5nm dual-frequency interferometer is also promising in two-wavelength interferometry when combined with the commercial 632.8nm dual-frequency interferometer, where both a high resolution and a relatively large range in displacement measurement can be achieved. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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