光学技术, 2019, 45 (4): 443, 网络出版: 2019-09-02
低色散单基模空心Bragg光纤
Low dispersion single fundamental mode hollow Bragg fibers
飞秒脉冲传输 空心Bragg光纤 单基模 缺陷层 大带宽 低色散 femtosecond pulse transmission hollow Bragg fiber single fundamental mode defect layer broad-band low dispersion
摘要
针对飞秒光脉冲全光纤化传输的需求, 研究了空心Bragg光纤单基模传输的特性。进而设计了一款空心Bragg光纤, 用于中心波长在1.550μm的飞秒脉冲单基模传输。为了解决空心Bragg光纤在工作窗口色散过大的问题, 通过合理的引入缺陷层调节空心Bragg光纤单基模传输的色散特性, 使其在工作窗口低色散或零色散传输。仿真结果表明, 空心Bragg光纤在1.45μm至1.65μm的带宽范围内都可以维持单基模、低色散或零色散传输, 完全满足脉宽为100飞秒的光脉冲全光纤化传输的需求。
Abstract
To meet the demand of femtosecond pulse all fiber transmission, the transmission characteristics of hollow single mode Bragg fiber are studied, and then, a kind of single fundamental mode hollow Bragg fiber for femtosecond pulse transmission at 1.550μm is designed. Hollow Bragg fiber can be low or no dispersion transmission by bringing in a defect layer in cladding layers to regulate dispersion. It can be seen from simulation results that this kind hollow Bragg fiber can maintain single fundamental mode with low or no dispersion at the bandwidth from 1.45μm to 1.65μm, which fully meet the demand of 100fs pulse all fiber transmission.
单昕, 廖同庆, 蔡培君, 吴建. 低色散单基模空心Bragg光纤[J]. 光学技术, 2019, 45(4): 443. SHAN Xin, LIAO Tongqing, CAI Peijun, WU Jian. Low dispersion single fundamental mode hollow Bragg fibers[J]. Optical Technique, 2019, 45(4): 443.
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