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Experimental and numerical study of high order Stokes lines in Brillouin-erbium fiber laser.
- 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]
- Subjects :
- BRILLOUIN scattering
FIBER lasers
FIBER optics
WAVE equation
THEORY of wave motion
Subjects
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