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Abstract
Operation of a polarization interferometer for measurement of the wavelength changes of a tunable semiconductor laser was investigated. A lambda/8 waveplate made from liquid crystalline polymer is placed in one of interferometers’ arms in order to generate two output signals in quadrature. Wavelength was measured with resolution of 2 pm in the wavelength range 628–635 nm. Drift of the interferometer, measured in the period of 500 s, was 8 nm, which corresponded to the change in the wavelength of 1.3 pm. If needed, wavelength-dependent Heydemann correction can be used to expand the range of operation of such interferometer
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- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/s16050633
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
SENSORS
no. 16,
edition 5,
pages 1 - 8,
ISSN: 1424-8220 - Language:
- English
- Publication year:
- 2016
- Bibliographic description:
- Wierzba P.: Interferometric Sensor of Wavelength Detuning Using a Liquid Crystalline Polymer Waveplate// SENSORS. -Vol. 16, iss. 5 (2016), s.1-8
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/s16050633
- Sources of funding:
-
- COST_FREE
- Verified by:
- Gdańsk University of Technology
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