Polarization-dependent efficient Cherenkov radiation at visible wavelengths in hollow-core photonic crystal fiber cladding  

作　　者：申向伟 苑金辉 桑新柱 余重秀 饶岚 夏民 韩颖 夏长明 侯蓝田 吴中超 何晓亮 

机构地区：[1]The 26th Institute of China Electronics Technology Corporation [2]State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts & Telecommunications [3]Institute of Infrared Optical Fibers & Sensors

出　　处：《Chinese Physics B》2013年第1期222-225,共4页中国物理B（英文版）

基　　金：Project supported by the National Basic Research Program of China (Grant Nos. 2010CB327605 and 2010CB328300);the Fundamental Research Funds for the Central Universities of Ministry of Education of China (Grant Nos. 2011RC0309 and 2011RC008);the Specialized Research Fund for the Doctoral Program of Beijing University of Posts and Telecommunications, China (Grant No. CX201023)

摘　　要：Efficient Cherenkov radiation （CR） is experimentally generated by a soliton self-frequency shift （SSFS） in a knot of hollow-core photonic crystal fiber （HC-PCF）. When the angle of the half-wave plate is rotated from 0° to 45°, the Raman soliton shifts from 2227 to 2300 nm, the output power of the CR increases 8.15 times, and the maximum output power ratio of the CR at 556 nm to the residual pump is estimated to be 20：1. The width of the output optical spectrum at visible wavelengths broadens from 25 to 45 nm, and the conversion efficiency of the CR can be above 28%. Moreover, the influences of the pump polarization and wavelength on the CR are studied, and the corresponding nonlinear processes are discussed.Efficient Cherenkov radiation （CR） is experimentally generated by a soliton self-frequency shift （SSFS） in a knot of hollow-core photonic crystal fiber （HC-PCF）. When the angle of the half-wave plate is rotated from 0° to 45°, the Raman soliton shifts from 2227 to 2300 nm, the output power of the CR increases 8.15 times, and the maximum output power ratio of the CR at 556 nm to the residual pump is estimated to be 20：1. The width of the output optical spectrum at visible wavelengths broadens from 25 to 45 nm, and the conversion efficiency of the CR can be above 28%. Moreover, the influences of the pump polarization and wavelength on the CR are studied, and the corresponding nonlinear processes are discussed.

关 键 词：polarization-dependent Cherenkov radiation hollow-core photonic crystal fiber （HC-PCF） 

分 类 号：TN253[电子电信—物理电子学]