| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Multi-Wavelength Conversion Based on Single Wavelength Results in Phase Retardation Measurement |
| CHEN Wen-Xue1,2, ZHANG Shu-Lian2**, LONG Xing-Wu1 |
1Department of Opto-electronic Engineering, College of Opto-electronic Science and Engineering, National University of Defense Technology, Changsha 410073
2The State Key Lab of Precision Measurement Technology and Instrument, Department of Precision Instruments, Tsinghua University, Beijing 100084
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| Cite this article: |
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CHEN Wen-Xue, ZHANG Shu-Lian, LONG Xing-Wu 2013 Chin. Phys. Lett. 30 034201 |
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Abstract We introduce an instrument for single wavelength measurement of phase retardation based on the laser feedback phenomenon. A method of multi-wavelength conversion for this instrument is proposed and the conversion results are analyzed. System calibration is used to eliminate the conversion error. The experimental results show that the maximum error after conversion is 0.26°. Through the present work, the application of laser feedback instrument for single wavelength measurement of a wave plate is expanded to the multi-wavelength range. This will expand the application area of the instruments.
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Received: 12 November 2012
Published: 29 March 2013
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| PACS: |
42.55.Lt
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(Gas lasers including excimer and metal-vapor lasers)
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07.60.Ly
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(Interferometers)
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42.62.Eh
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(Metrological applications; optical frequency synthesizers for precision spectroscopy)
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42.62.Fi
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(Laser spectroscopy)
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