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.
© 1995 Optical Society of America
Original Manuscript: February 16, 1995
Revised Manuscript: June 14, 1995
Published: October 20, 1995
G. W. Yoffe, Peter A. Krug, F. Ouellette, and D. A. Thorncraft, "Passive temperature-compensating package for optical fiber gratings," Appl. Opt. 34, 6859-6861 (1995)