We have analyzed and calculated the temperature and strain sensitivities of a high-birefringence double-clad elliptical fiber. We propose a method to minimize these sensitivities without increasing the fiber size or weight; this is achieved by selecting suitable fiber parameters—core ellipticity, refractive index difference, and thickness of the inner cladding. In addition, we discuss the design of temperature- or strain-insensitive fibers which may be used in polarimetric strain or temperature sensors. This method may also be used to minimize or enhance other external effects.
© 1992 Optical Society of America
Feng Zhang and John W. Y. Lit, "Temperature and strain sensitivities of high-birefringence elliptical fibers," Appl. Opt. 31, 1239-1243 (1992)