Abstract

A theoretical analysis is given of methods using transmission intensity effects in optical fibers as temperature sensors. The underlying mechanism involves temperature-dependent coupling of the evanescent field through a relatively thin cladding layer onto a lossy jacket. The temperature dependence comes about through the refractive indices of the core and cladding materials, which are chosen along with the fiber dimensions to give the desired response.

© 1981 Optical Society of America

Fiber-optic temperature sensor based on internally generated thermal radiation

M. Gottlieb and G. B. Brandt
Appl. Opt. 20(19) 3408-3414 (1981)

Excess loss of single-mode jacketed optical fiber at low temperature

Tetsuro Yabuta, Nobuyuki Yoshizawa, and Kohshi Ishihara
Appl. Opt. 22(15) 2356-2362 (1983)

Jacketed optical fiber characteristics under lateral pressure

Nobuyuki Yoshizawa, Tetsurou Yabuta, Nobuya Kojima, and Yukiyasu Negishi
Appl. Opt. 20(18) 3146-3151 (1981)

Temperature-induced optical phase shifts in fibers

N. Lagakos, J. A. Bucaro, and J. Jarzynski
Appl. Opt. 20(13) 2305-2308 (1981)

Mode properties of optical fibers with lossy components by the propagating beam method

M. D. Feit and J. A. Fleck
Appl. Opt. 20(5) 848-856 (1981)