Chinese Optics Letters, 2009, 7 (9): 775, Published Online: Sep. 22, 2009
Theoretical and experimental investigation of the mode-spacing of fiber Bragg grating Fabry-Perot cavity Download: 1095次
法布里-珀罗腔 光纤布拉格光栅 模式间隔 有效长度 穿透深度 060.3735 Fiber Bragg gratings 050.2230 Fabry-Perot 140.3570 Lasers, single-mode
Abstract
The mode-spacing of the fiber Bragg grating Fabry-Perot (FBG F-P) cavity is calculated by using the effective cavity length which contains the effective length of the FBG. The expression of the effective length, defined by using the phase-time delay, is obtained and simplified as a function of the peak reflectivity at the Bragg wavelength, the band edges, and the first zero-reffectivity wavelength. The effective length is discussed from the energy penetration depth point of view. Three FBG F-P cavities are fabricated in order to validate the effective length approach. The experimental data fits well with the theoretical predictions. The limitation of this method is also pointed out and the improved approach is proposed.
Wenhua Ren, Peilin Tao, Zhongwei Tan, Yan Liu, Shuisheng Jian. Theoretical and experimental investigation of the mode-spacing of fiber Bragg grating Fabry-Perot cavity[J]. Chinese Optics Letters, 2009, 7(9): 775.