Spectral shaping of supercontinuum in a cobweb photonic-crystal fiber with sub-20-fs pulses

被引：80
|
作者：
Apolonski, A [1 ]
Povazay, B
Unterhuber, A
Drexler, W
Wadsworth, WJ
Knight, JC
Russell, PS
机构：
[1] Vienna Univ Technol, Inst Photon, Vienna, Austria
[2] RAS, Inst Automat & Electrometry, Novosibirsk, Russia
[3] Univ Vienna, Inst Med Phys, Vienna, Austria
[4] Univ Bath, Dept Phys, Bath BA2 7AY, Avon, England
来源：
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2002年 / 19卷 / 09期
关键词：
D O I：
10.1364/JOSAB.19.002165
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Multiple approaches to generate a smooth, powerful, and stable supercontinuum in cobweb photonic-crystal fibers were undertaken by use of 18-fs pulses. These approaches include utilization of incident pulses with various chirp, power, and polarization states, as well as fibers with different lengths and core sizes. For long fibers (tens of centimeters) the supercontinuum contains a finely modulated structure that can be smoothed when the oscillator is in a regime of relaxation oscillations. Short fibers provide a supercontinuum free of gaps. By optimization of these parameters supercontinua exceeding one octave with modulations of less than 10 dB have been generated. (C) 2002 Optical Society of America.
引用
收藏
页码：2165 / 2170
页数：6
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