欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
基于失配光纤耦合器的波长特性，从理论上详细分析了两芯间隔d，两芯之间的失配度△β及耦合区长度z对其光谱特性的影响。结果表明，当△β和d较小时光纤耦合器可以成为梳状滤波器。邸主要影响梳状滤波器的消光比，z和d在两芯子匹配的情况下主要影响峰值波长位置和间隔。通过将一根两芯间隔d=12μm的单模双芯光纤（TCF）的一个芯子熔接在两根单模光纤（SMF）之间，实验制得基于双芯光纤耦合器的全光纤型梳状滤波器，其消光比可达25dB，插入损耗为3．1dB。通过使用不同长度的TCF获得了不同的峰值波长间隔，并使用波长为248nm的紫外光对其峰值波长和消光比进行了调节。
英文摘要：
Based on the wavelength characteristic of mismatch fiber coupler, the effects of the distance d and the mismatch △ β between the two cores, the coupling length z on its spectrum characteristics are analyzed theoretically. It is proposed that the fiber coupler can be a comb-filter when △ β and d are very small.△ β mainly effects the extinction ratio, d and z mainly effect the interval of the resonant peaks respectively when the two cores are matched. An all-fiber comb-filter based on twin-corn fiber coupler is experimentally fabricated by splicing a section of single mode twin-core fiber （TCF） with core center-to-center distance of 12 μm between two single mode fibers （SMFs）, and the filter＇s extinction ratio and insertion loss are 25 dB and 3.1 dB respectively. The interval of the resonant peaks can be changed by using TCF of different lengths, and the peak wavelength and extinction ratio are modulated by ultraviolet light of 248 nm.
同期刊论文项目
同项目期刊论文
Bidirectional 60 GHz RoF System With Two Millimeter-Wave Signals Generated by a Novel Generation Sch
Overwritten fiber Bragg grating and its application in an optical single sideband with carrier modul
期刊信息
位置：