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Experimental and numerical study of high order Stokes lines in Brillouin-erbium fiber laser.

Authors :
Yijun Yuan
Yong Yao
Jun Jun Xiao
Yanfu Yang
Jiajun Tian
Chao Liu
Source :
Journal of Applied Physics; 2014, Vol. 115 Issue 4, p1-6, 6p, 2 Diagrams, 4 Graphs
Publication Year :
2014

Abstract

We experimentally study the dependences of high-order Stokes lines on the erbium-doped fiber (EDF) pump power P<subscript>EDF</subscript>, the Brillouin pump (BP) power P<subscript>BP</subscript>, and its working wavelength in a multiwavelength Brillouin erbium-doped fiber laser (MBEFL). By using the rate and propagation equations, and the coupled wave equations of stimulated Brillouin scattering, we establish a lumped model to describe the MBEFL. Numerical simulations show that the number of Stokes lines can be increased by decreasing the spacing between the BP wavelength and the EDF peak gain or P<subscript>BP</subscript> as long as it is larger than a critical value P<subscript>BP</subscript><superscript>(cr)</superscript> = 1.7 mW, or by increasing P<subscript>EDF</subscript> without reaching a saturation value P<subscript>EDF</subscript><superscript>(cr)</superscript> = 250 mW. However, when P<subscript>BP</subscript> and P<subscript>EDF</subscript> are varied beyond P<subscript>BP</subscript><superscript>(cr)</superscript> and P<subscript>EDF</subscript><superscript>(cr)</superscript>, respectively, the number of Stokes lines is reduced, accompanied by some self-lasing cavity modes. These results by numerical simulation are consistent with experimental observations from the MBEFL. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00218979
Volume :
115
Issue :
4
Database :
Complementary Index
Journal :
Journal of Applied Physics
Publication Type :
Academic Journal
Accession number :
94302221
Full Text :
https://doi.org/10.1063/1.4863116