Passive temperature-compensating package for optical fiber gratings

We demonstrate a compact, passive temperature-compensating package for fiber gratings. The grating is mounted under tension in a package comprising two materials with different thermal-expansion coefficients. As the temperature rises the strain is progressively released, compensating the temperature...

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Bibliographic Details
Published in:Applied optics (2004) 1995-10, Vol.34 (30), p.6859-6861
Main Authors: Yoffe, G W, Krug, P A, Ouellette, F, Thorncraft, D A
Format: Article
Language:English
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Summary:We demonstrate a compact, passive temperature-compensating package for fiber gratings. The grating is mounted under tension in a package comprising two materials with different thermal-expansion coefficients. As the temperature rises the strain is progressively released, compensating the temperature dependence of the Bragg wavelength. A fiber grating mounted in a package 50 mm long and 5 mm in diameter exhibited a total variation in Bragg wavelength of 0.07 nm over a 100 °C temperature range, compared with 0.92 nm for an uncompensated grating.
ISSN:1559-128X
DOI:10.1364/AO.34.006859