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Polarization interferometer using a Liquid Crystalline Polymer waveplate for wavelength measurement

Abstract

A two-beam polarization interferometer for measuring wavelength changes of a tunable semiconductor laser was designed, built and tested. This interferometer uses a λ/8 waveplate made from Liquid Crystalline Polymer in order to generate two output signals in quadrature. The λ/8 waveplate can be manufactured either on a beamsplitter face or on the mirror surface, reducing the cost and complexity of the optomechnical assembly. Experiment results show that a resolution of 2pm was attained for the wavelength range 628-635nm. The range of operation of such an interferometer can be extended if the wavelength-dependent Heydemann correction is used.

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Details

Category:
Articles
Type:
artykuły w czasopismach recenzowanych i innych wydawnictwach ciągłych
Published in:
Photonics Letters of Poland no. 7, pages 100 - 102,
ISSN: 2080-2242
Language:
English
Publication year:
2015
Bibliographic description:
Wierzba P., Mazikowski A.: Polarization interferometer using a Liquid Crystalline Polymer waveplate for wavelength measurement// Photonics Letters of Poland. -Vol. 7., nr. 4 (2015), s.100-102
DOI:
Digital Object Identifier (open in new tab) 10.4302/plp.2015.4.05
Verified by:
Gdańsk University of Technology

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