Polarisation-sensitive four-wave mixing and soliton self-frequency shift effect in the highly birefringent photonic crystal fibre  

作　　者：苑金辉 桑新柱 余重秀 忻向军 李曙光 周桂耀 侯蓝田 

机构地区：[1]Key Laboratory of Information Photonics and Optical Communications,Ministry of Education,Institute of Optical Communication and Optoelectronics,Beijing University of Posts and Telecommunications [2]Institute of Infrared Optical Fibers and Sensors,College of Information Science and Engineering,Yanshan University

出　　处：《Chinese Physics B》2010年第7期344-349,共6页中国物理B（英文版）

基　　金：partly supported by the National Basic Research Program (Grant Nos. 2010CB327605 and 2010CB328300);Nationa lHigh-Technology Research and Development Program of China (Grant Nos. 2007AA03Z447 and 2009AA01Z220);the National Natural Science Foundation of China (Grant No. 60807022);the Key Grant of Ministry of Education of China (Grant No. 109015);the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20070013001)

摘　　要：By adjusting the polarisation state of the pump at 805 nm parallel to slow （x） and fast （y） axes of the highly birefringent photonic crystal fibre with zero dispersion wavelengths 790 nm and 750 nm, this paper demonstrates the efficient polarisation-sensitive four wave mixing involved in pump, anti-Stokes and Stokes signals and soliton self- frequency shift effects induced by the phase-matching between red-shifted solitons and blue-shifted dispersive waves. If the reduction of coupling efficiency to the circular pump laser mode or other circular fibres due to asymmetry of the core is neglected, more than 98% of the total input power is kept in a single linear polarisation. Controlled dispersion characteristic of the doublet of fundamental guided-modes results in achieving light field strongly confined in principal axes of photonic crystal fibre, and enhancing the corresponding nonlinear-optical process through the remarkable nonlinear birefringence.By adjusting the polarisation state of the pump at 805 nm parallel to slow （x） and fast （y） axes of the highly birefringent photonic crystal fibre with zero dispersion wavelengths 790 nm and 750 nm, this paper demonstrates the efficient polarisation-sensitive four wave mixing involved in pump, anti-Stokes and Stokes signals and soliton self- frequency shift effects induced by the phase-matching between red-shifted solitons and blue-shifted dispersive waves. If the reduction of coupling efficiency to the circular pump laser mode or other circular fibres due to asymmetry of the core is neglected, more than 98% of the total input power is kept in a single linear polarisation. Controlled dispersion characteristic of the doublet of fundamental guided-modes results in achieving light field strongly confined in principal axes of photonic crystal fibre, and enhancing the corresponding nonlinear-optical process through the remarkable nonlinear birefringence.

关 键 词：highly birefringent photonic crystal fibre four wave mixing soliton self-frequency shift PHASE-MATCHING 

分 类 号：O437[机械工程—光学工程] TN253[理学—光学]