TY - JOUR
T1 - Off-axial pulse propagation in graded-index materials with Kerr nonlinearity - A variational approach
AU - Chien, Chih Hung
AU - Yu, Shinn Sheng
AU - Lai, Yinchieh
AU - Wang, Jyhpyng
PY - 1996/7/1
Y1 - 1996/7/1
N2 - We analyze off-axial, self-focused pulse propagation in graded-index Kerr materials with the variational method. Equations which determine the characteristics of the beam, namely the optical path, the wavefront curvature, the beam width, and the pulse duration are derived and solved. We show that continuously adjustable negative group-velocity dispersion can be generated by off-axial propagation, and for pulse energy smaller than a critical value, negative group-velocity dispersion and Kerr nonlinearity warrant the existence of stable spatio-temporal solitary pulses.
AB - We analyze off-axial, self-focused pulse propagation in graded-index Kerr materials with the variational method. Equations which determine the characteristics of the beam, namely the optical path, the wavefront curvature, the beam width, and the pulse duration are derived and solved. We show that continuously adjustable negative group-velocity dispersion can be generated by off-axial propagation, and for pulse energy smaller than a critical value, negative group-velocity dispersion and Kerr nonlinearity warrant the existence of stable spatio-temporal solitary pulses.
UR - http://www.scopus.com/inward/record.url?scp=0030191178&partnerID=8YFLogxK
U2 - 10.1016/0030-4018(96)00128-9
DO - 10.1016/0030-4018(96)00128-9
M3 - 期刊論文
AN - SCOPUS:0030191178
SN - 0030-4018
VL - 128
SP - 145
EP - 157
JO - Optics Communications
JF - Optics Communications
IS - 1-3
ER -