Title :
Highly Efficient and Broadband Cherenkov Radiation at the Visible Wavelength in the Fundamental Mode of Photonic Crystal Fiber
Author :
Yuan, Jinhui ; Sang, Xinzhu ; Yu, Chongxiu ; Han, Ying ; Zhou, Guiyao ; Li, Shuguang ; Hou, Lantian
Author_Institution :
Key Lab. of Inf. Photonics & Opt. Commun., Beijing Univ. of Posts & Telecommun., Beijing, China
fDate :
6/15/2011 12:00:00 AM
Abstract :
Highly efficient and broadband Cherenkov radiations (CRs) by soliton self-frequency shift (SSFS) are generated in the fundamental mode of photonic crystal fiber (PCF) fabricated in our laboratory. The dependences of CR on the pump wavelength and power are investigated, and the corresponding nonlinear-optical processes are discussed. When the average power of the 120-fs pump pulse increases from 100 to 300 mW, the Raman soliton shifts from 1970 to 2130 nm, the conversion efficiency of CR in the range of 580 to 545 nm increases from 8% to 31%, and the width of output optical spectrum at the visible wavelength broadens from 11 to 54 nm.
Keywords :
Cherenkov radiation; holey fibres; optical fabrication; optical solitons; photonic crystals; Raman soliton shifts; broadband Cherenkov radiation; nonlinear-optical processes; photonic crystal fiber; power 100 mW to 300 mW; soliton self-frequency shift; time 120 fs; wavelength 11 nm to 54 nm; wavelength 1970 nm to 2130 nm; wavelength 580 nm to 545 nm; Broadband communication; Nonlinear optics; Optical fiber dispersion; Photonic crystal fibers; Solitons; Ultrafast optics; Cherenkov radiation (CR); photonic crystal fiber (PCF); soliton self-frequency shift (SSFS); visible wavelength;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2011.2136431
