Analytic models of spectral responses of fiber-grating-based interferometers on FMC theory

作者：Zeng Xiangkai^*; Wei Lai; Pan Yingjun; Liu Shengping; Shi Xiaohui

来源：Optics Express, 2012, 20(4): 4009-4017.

In this paper the analytic models (AMs) of the spectral responses of fiber-grating-based interferometers are derived from the Fourier mode coupling (FMC) theory proposed recently. The interferometers include Fabry-Perot cavity, Mach-Zehnder and Michelson interferometers, which are constructed by uniform fiber Bragg gratings and long-period fiber gratings, and also by Gaussian-apodized ones. The calculated spectra based on the analytic models are achieved, and compared with the measured cases and those on the transfer matrix (TM) method. The calculations and comparisons have confirmed that the AM-based spectrum is in excellent agreement with the TM-based one and the measured case, of which the efficiency is improved up to similar to 2990 times that of the TM method for non-uniform-grating- based in-fiber interferometers.

• 出版日期2012-2-13
• 单位重庆理工大学; 重庆大学