Application of the multi-channel fiber Bragg grating to the high-speed and broadband optical communication system

多通道光纤布拉格光栅在高速宽带光通信系统中的应用

基本信息

批准号：
18560332
负责人：
LI Hongpu
金额：
$ 2.35万
依托单位：
Shizuoka University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2006
资助国家：
日本
起止时间：
2006 至 2007
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18560332/
关键词：
Electronic Device Applied Optics Quantum Optics Fiber Optical Components WDM Optical Communication System Fiber Bragg Grating Broad-band Dispersion Compensator

项目摘要

In this study, we have presented a theory for the phase-only sampled FBG and demonstrate that a sampled FBG of Nchannels would require √<N> times higher the maximum refractive index-modulation than that of the single-channel FBG. A novel continuous phase-only sampling function capable of producing up to 81-channel FBG with excellent channel uniformity and high in-band energy efficiency is presented and optimized by using the simulated annealing algorithm. In order to fabricate this kind of FBGs with a conventional side-writing phase-mask technique, both the diffraction effects and fabrication tolerance of the phase-shifted phase mask have also been addressed. Compared with the numerical results, a 45-channel (spacing of 100 GHz) and, an 81-channel (spacing of 50 GHz) phase-only sampled linearly chirped FBG are successfully demonstrated.We have presented a novel method for multi-channel FBG design, which enables us to design any kind of multi-channel FBGs where the spectrum response of … More each channel could be either identical or non-identical. Particularly, 9-channel nonlinearly chirped FBG used as simultaneously dispersion and dispersion slope compensator has been demonstrated.We have demonstrated a novel method to measure the chromatic dispersion of a multi-channel fiber Bragg grating (FBG), which is based on an all-fiber asymmetrical Sagnac loop interferometer (ASLI) proposed Theoretical analyses to this proposed approach are presented in details. With this method, the chromatic dispersion and dispersion slope of a 51-channel FBG are simultaneously measured. The experimental results agree well with the ones obtained by using the general phase-shift method (PSM). This method has the advantages of simple configuration, low-cost, and high tolerance for the characteristics of FBG.We have presented a novel approach for the reflection equalization of a phase-only sampled fiber Bragg grating (FBG), where the grating is specially designed as a simultaneous dispersion and dispersion-slope compensator with channels up to 51. The sampling-function used is given with an analytical form with a linearly-chirped sampling period and is optimized by using the simulated annealing algorithm. Less

在这项研究中，我们提出了一种仅相样采样FBG的理论，并证明了采样的NChannels采样FBG将需要比单通道FBG的最大折射率调节的最大折射率调节。通过使用模拟的退火算法，提供和优化了一种具有出色的通道均匀性和高带内能效率的新型连续纯样本功能，能够产生高达81通道FBG，并具有出色的通道均匀性和较高的带内能效率。为了使用常规的侧撰写相罩技术制造这种FBG，也已经解决了相移相掩码的衍射效果和制造耐受性。与数值结果相比，45通道（间距为100 GHz）和81通道（50 GHz的间距）仅相平均线性地进行线性搅拌的FBG，我们已经成功地证明了我们为多种多样的多种频道而设计的多种频道的新方法，它可以设计多种多样的范围。非相同。 Particularly, 9-channel nonlinearly chirped FBG used as simply dispersion and dispersion slope compensator has been demonstrated.We have demonstrated a novel method to measure the chromatic dispersion of a multi-channel fiber Bragg grating (FBG), which is based on an all-fiber asymmetrical Sagnac loop Interferometer (ASLI) proposed Theoretical analyses to this proposed approach are presented in details.使用这种方法，简单地测量了51通道FBG的色散和色散插槽。实验结果与使用通用相移方法（PSM）获得的结果非常吻合。该方法具有简单配置，低成本和高容忍度的FBG特征的优势。我们为反射提供了一种新颖的方法，用于等同于仅相平均取样的纤维bragg谐波（FBG），在该方法中，栅格是在其中专门设计的，它是在同时使用的分散和分散剂的51。线性校准的采样周期，并通过使用模拟退火算法进行优化。较少的