Ultra-long raman laser with a feedback based on the Rayleigh scattering

Author

Babin, S.A. ; El-Taher, Atalla E. ; Harper, P. ; Churkin, Dmitry V. ; Kablukov, S.I. ; Podivilov, E.V. ; Turitsyn, S.K.

Author_Institution

Inst. of Autom. & Electrometry, SB RAS, Novosibirsk, Russia

fYear

2009

fDate

14-19 June 2009

Firstpage

1

Lastpage

1

Abstract

This paper reports the Rayleigh scattering effects in ultra-long Raman fibre laser. It has been found that in a long fibre cavity (-100 km) the distributed feedback due to Rayleigh back scattering at propagation of light between fibre Bragg grating reflectors may be comparable with the lumped feedback provided by the FBG itself. As a result, Raman lasing in the fibre span limited by lumped (FBG) reflector at one side only appears possible due to significant reflection from the RS-based "random" distributed mirror at the other side. Thus, it concludes that a distributed Rayleigh scattering "random" mirror can form a cavity together with a single FBG spliced to the opposite cavity end..

Keywords

Bragg gratings; Raman lasers; Rayleigh scattering; distributed Bragg reflector lasers; distributed feedback lasers; fibre lasers; high-speed optical techniques; laser beams; laser cavity resonators; laser feedback; laser mirrors; RS-based random distributed mirror; Raman lasing; Rayleigh back scattering effect; distributed feedback; fibre Bragg grating reflector; long fibre cavity; lumped feedback; ultra-long Raman fibre laser; Bragg gratings; Distributed feedback devices; Fiber gratings; Fiber lasers; Laser feedback; Light scattering; Mirrors; Optical propagation; Raman scattering; Rayleigh scattering;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on

Conference_Location

Munich

Print_ISBN

978-1-4244-4079-5

Electronic_ISBN

978-1-4244-4080-1

Type

conf

DOI

10.1109/CLEOE-EQEC.2009.5194622

Filename

5194622