Chinese Optics Letters, 2010, 8 (1): 4, Published Online: Mar. 1, 2010
Low birefringence depressed cladding photosensitive fiber Download: 678次
光纤布拉格光栅 光敏光纤 双折射 偏振模色散 060.2280 Fiber design and fabrication 060.3738 Fiber Bragg gratings, photosensitivity 060.3735 Fiber Bragg gratings
Abstract
The highly Ge-doped photosensitive fiber (PSF) has been widely used in the fabrication of fiber Bragg gratings (FBGs). Its birefringence and cladding mode coupling characteristics greatly influence FBG's transmission feature in communication application areas. In this work, a new concept of the PSF is introduced which, along with an optimized birefringence design, a precisely controlled fabrication process, and a cladding mode depressed design, results in a written FBG with -25-dB clad mode-depressed ratio and a polarization mode dispersion value less than 0.045 ps.
Feng Tu, Deming Liu, Jie Luo, Xinwei Qian, Chen Yang, Tao Deng. Low birefringence depressed cladding photosensitive fiber[J]. Chinese Optics Letters, 2010, 8(1): 4.