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Analysis of Z-Cut Quartz Etalon with Weight for Wavelength Locker
Shigeru OHSHIMA Masahide MIYACHI
Publication
IEICE TRANSACTIONS on Electronics
Vol.E88-C
No.5
pp.1033-1040 Publication Date: 2005/05/01 Online ISSN:
DOI: 10.1093/ietele/e88-c.5.1033 Print ISSN: 0916-8516 Type of Manuscript: PAPER Category: Optoelectronics Keyword: wavelength division multiplexing, frequency stability, frequency locked loops, Fabry-Perot resonators, quartz, cavities, modulation,
Full Text: PDF(852.4KB)>>
Summary:
This paper presents an analysis of the cavity length modulation of a Z-cut quartz etalon equipped with a weight for Laser Diode (LD) wavelength lockers. The electro-optic effect, piezoelectric effect and photo-elastic effect are considered, and the mechanical movement of the etalon with a weight is analyzed by using a mechanical circuit. Approximate equations that clearly explain the mechanical force, mechanical resonance frequency, and Q factor of the mechanical resonance are obtained. The mechanism for improving the modulation efficiency by placing a weight is clarified. We also compare the analysis with experimental results, and show that most of the experimental values are in accord with the calculated values.
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