摘要
随着物联网系统和数据云计算的快速发展,对光纤相关带宽和数据容量提出了更高要求,尤其是对水下光纤的应用。传统商用光纤(EDF)设备例如放大器和激光源,通常来说,它们只能工作在C和L频带,在未来可能不能满足光纤领域高速交换数据的要求。铋铒共掺光纤(BEDF)作为一种新型光纤能够覆盖更广的频带(1000nm^1700nm)。然而,测量的荧光特性(发射谱)可能被泵浦源功率,BEDF长度,连接的SMF1550单模光纤弯曲度以及位于拼接处的匹配油影响。论文工作主要通过采用980nm激光源和背向浦结构的方式研究SMF1550弯曲度,匹配油,BEDF长度荧光发射特性以及剩余功率(吸收)的影响。试验结果表明,弯曲半径过小的SMF1550对剩余功率的影响可以被忽略但在峰值1535.8nm处有较大影响;匹配油基本不会影响测量结果,BEDF的长度变化有直接的影响对荧光特性的测量,应当引起重视。该项试验测量结果和归一化的分析方法将对BEDF荧光特性高精度测量提供参考,有助于推进新型光纤BEDF的快速发展和水下应用。
With the fast growth of the Internet of things system and data cloud calculating,there are higher requirements for the following factors,which are message capacity and relevant bandwidth of optical fibre,especially for applications of underwater optical fiber.In general,they can only work in C and L bands,which may not be enough for exchange data of the optical fibre in fu⁃ture.Bismuth and Erbium co-doped fibre(BEDF)as a new fibre can cover wider band from 1000nm^1700nm approximately.How⁃ever,the result of fluorescence characteristic(emission)may be affected by the pump power,BEDF length,SMF1550 bending and matching liquid between splice point in different degrees.In this work,the main task is the research about the influences of SMF1550 bending,matching liquid,BEDF length on the fluorescence(emission)and surplus power(absorption)with a 980nm la⁃ser and backward structure.The experimental results show that the effect of SMF1550 small circles on surplus power(absorption)could be ignored and should be considered in the peak value(1535.8nm).Matching Liquid almost do not affect the measurement re⁃sults.The variation of length of BEDF have large effects on the measurements of fluorescent characteristic BEDF and should be em⁃phasized.This measurement result and analysis method of normalisation will provide a reference for high precision measurement of BEDF fluorescence characteristic and promote the rapid development and underwater applications of BEDF.
作者
陈泽锐
CHEN Zerui(Kunming Shipborne Equipment Research and Test Center,Kunming 650051)
出处
《舰船电子工程》
2020年第8期107-110,154,共5页
Ship Electronic Engineering
