Optimization of phase modulation with arbitrary waveform generators for optical spectral control and suppression of stimulated Brillouin scattering

被引：47
|
作者：
Harish, Achar V. [1 ]
Nilsson, Johan [1 ]
机构：
[1] Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England
来源：
OPTICS EXPRESS | 2015年 / 23卷 / 06期
关键词：
POWER-AMPLIFIER SOURCE; SINGLE-FREQUENCY; PARAMETRIC-AMPLIFIERS; FIBER AMPLIFIER; MODE; LIGHT; KW;
D O I：
10.1364/OE.23.006988
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We investigate the use of an arbitrary waveform generator to phase-modulate a laser source and externally broaden its linewidth. Through nonlinear optimization in a computer, we find modulation signals that produce top-hat-shaped optical spectra of discrete lines with highest total power within a limited bandwidth and limited peak spectral power density. The required modulation bandwidth is comparable to the targeted optical bandwidth. Such spectra are attractive for suppressing stimulated Brillouin scattering in optical fiber. Experimentally, we generate 15 lines in a 0.5 GHz optical linewidth. However, the method can also be used to generate other optical spectra. (C) 2015 Optical Society of America
引用
收藏
页码：6988 / 6999
页数：12
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