[1] [1] Snydan A W, Love J D. Optical Waveguide Theory [M]. London: Chapman and Hall, 1983.

[2] [2] Chen B Y. Evolution and Specification for Single-mode Optical Fiber: from G. 652 to G. 655 [Z]. Optical Fiber & Electric Cable, 2002.

[3] [3] Stevenson J L, Dyott R B. Optical fiber waveguide with a single-crystal core [J]. Electron Lett., 1974, 10: 449-450.

[4] [4] Cozens J. Propagation in cylindrical fibers with anisotropic crystal cores [J]. Electron. Lett., 1974, 12: 413-415.

[5] [5] Zhang X P, Tan Z H. Analysis of transmission characteristics of doubly clad fibers with an inner cladding made of uniaxial crystal materials [J]. Opt. Commun., 2002, 204: 127-136.

[7] [7] Wakaki M, Komachi Y, Machida H. Fiber-optic polarizer using birefringent crystal as a cladding [J]. Appl. Opt.,1996, 35(15): 2591-2594.

[8] [8] Zhang X P, Hou S H. Study on characteristics of fiber Bragg grating with uniaxial crystal cladding [J]. Opt.Commun., 2003, 219(1-6): 193-198.

[11] [11] Mynbaev D K, Scheiner L L. Fiber-Optic Communications Technology [M]. New York: Prentice Hall. 2002.