中国物理B ›› 2012, Vol. 21 ›› Issue (11): 114102-114102.doi: 10.1088/1674-1056/21/11/114102
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
申向伟a, 苑金辉a, 桑新柱a, 余重秀a, 饶兰a, 夏民a, 韩颖b, 夏长明b, 侯蓝田b
Shen Xiang-Wei (申向伟)a, Yuan Jin-Hui (苑金辉)a, Sang Xin-Zhu (桑新柱)a, Yu Chong-Xiu (余重秀)a, Rao Lan (饶兰)a, Xia Min (夏民)a, Han Ying (韩颖)b, Xia Chang-Ming (夏长明)b, Hou Lan-Tian (侯蓝田 )b
摘要: Highly efficient Cherenkov radiations (CRs) are generated by the soliton self-frequency shift (SSFS) in the irregular point of a hollow-core photonic crystal fiber (HC-PCF) in our laboratory. The impacts of pump power and wavelength on the CR are investigated, and the corresponding nonlinear processes are discussed. When the average power of the 120 fs pump pulse increases from 500 mW to 700 mW, the Raman soliton shifts from 2210 nm to 2360 nm, the output power of the CRs increases by 2.3 times, the maximum output power ratio of the CRs at 539 nm to that of the residual pump is calculated to be 24.32:1, the width of the output optical spectrum at the visible wavelength broadens from 35 nm to 62 nm, and the conversion efficiency η of the CR in the experiment can be above 32%.
中图分类号: (Cherenkov radiation)