Pulse width dependance of the Brillouin loss spectrum

被引：20
作者：
Smith, J
Brown, A
DeMerchant, M
Bao, X
机构：
[1] Univ New Brunswick, Dept Phys, Fredericton, NB E3B 5A3, Canada
[2] Univ New Brunswick, Dept Civil Engn, Fredericton, NB E3B 5A3, Canada
来源：
OPTICS COMMUNICATIONS | 1999年 / 168卷 / 5-6期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Brillouin scattering; pulse width; Brillouin spectrum; distributed sensing;
D O I：
10.1016/S0030-4018(99)00366-1
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Stimulated Brillouin scattering in optical fibers can be used to measure strain and temperature in a distributed manner. To improve the spatial resolution of these measurements, shorter pulses must be used, resulting in reduced signal strengths causing a degradation of strain and temperature resolution. This paper studies the dependance of the Brillouin loss spectrum on the pump pulse width. Theoretical and experimental results display the nonlinear variations in the Brillouin peak power and linewidth over a range of pulse widths from 10 to 4000 ns. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：393 / 398
页数：6
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