Pump depletion in Raman lasing in a graded index multimode fibre

Pump depletion in Raman lasing in a graded index multimode fibre

We examine multimode diode laser pump depletion in a graded index multimode (MM) fibre Raman laser generating a high-quality Stokes beam. Spatial 'hole burning' in the transmitted pump beam is demonstrated. A balance model is constructed for interaction of the pump and Stokes waves in the...

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Veröffentlicht in:Quantum electronics (Woodbury, N.Y.) N.Y.), 2020-12, Vol.50 (12), p.1091-1095
Hauptverfasser: Kuznetsov, A.G., Kablukov, S.I., Podivilov, E.V., Babin, S.A.
Format: Artikel
Sprache:eng
Schlagworte:
balance model
BEAMS
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Depletion
EXPERIMENTAL DATA
Fiber lasers
FIBERS
fibre Bragg gratings
graded index multimode fibre
Hole burning
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
INTERACTIONS
Laser beams
LASERS
pump depletion effect
PUMPS
Qualitative analysis
Raman lasers
Raman lasing
Semiconductor lasers
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Zusammenfassung:We examine multimode diode laser pump depletion in a graded index multimode (MM) fibre Raman laser generating a high-quality Stokes beam. Spatial 'hole burning' in the transmitted pump beam is demonstrated. A balance model is constructed for interaction of the pump and Stokes waves in the MM Raman laser. Analytical formulas are derived and used in calculations demonstrating qualitative agreement with experimental data. The origin of the observed quantitative discrepancies is discussed.
ISSN:1063-7818
1468-4799
DOI:10.1070/QEL17458