Yan Meng, Yao Minyu, Zhang Hongming. OCDMA codec based on superstructured long-period fiber grating[J]. 2008,(2):18-20. DOI: 10.13756/j.gtxyj.2008.02.002.
On the basis of the analysis of cross-transmission characteristics of the Long-Period fiber Grating(LPG)
we find that superstructured LPG has a cross-transmission spectrum similar to the reflection spectrum of SuperStructured Fiber Bragg Grating(SSFBG).By utilizing the coupling between the fundamental mode and the inner cladding mode coexisting in the Dispersion Compensating Fiber(DCF)
superstructured LPG-based encoder/decoder for time-spread phase-coded OCDMA system can be realized.Simulation results show that identical encoding/decoding performance can be achieved with superstructured LPG.and superstructured FBG.
关键词
光通信光码分多址超结构长周期光纤光栅时域扩展相位编码
Keywords
optical communicationOCDMASuperStructured Long Period Grating(SSLPG)time-spread phase coding