Influences of Manufacturing Errors on Phase-only Sampled Fiber Gratings
The influence of manufacturing errors on the fiber grating is simulated numerically. When group delay and reflectivity ripples are caused by random phase and amplitude errors, inside a grating channel, the ripple amplitude at short wavelength is larger than the one at long wavelength, and this phenomenon was qualitatively explained using the principle that the reflecting position varies with the wavelength of incident light in a chirp grating. The sub-grating length of the transfer matrix method, which is decided by the accuracy of phase mask and UV writing, exerts an influence on the ripple amplitude. For multi channel fiber gratings, stitch error impairs the periodicity of sampling function, so this kind of fabrication error leads to unequal performance reduction in different channels, and the reduction is more serious for channels at two sides.
Fiber Bragg Grating Multi-Channel Manufacturing Errors Dispersion Compensation
Huang Liqun Ma Xuelian Zhang Jie Gong Ping Guan Jing
Department of Electronic Information Northeastern University at Qinhuangdao Qinhuangdao 066004, P.R.China
国际会议
秦皇岛
英文
85-87
2010-11-05（万方平台首次上网日期，不代表论文的发表时间）