Title :
SBS self-phase conjugation of CW Nd:YAG laser radiation in an optical fibre
Author :
Harrison, R.G. ; Kovalev, V.I.
Author_Institution :
Dept. of Phys., Heriot-Watt Univ., Edinburgh, UK
Abstract :
Summary form only given. It´s known since the 1970´s that stimulated Brillouin scattering (SBS), through its phase conjugation (PC) properties, provides an effective means for beam clean-up of moderate to high power pulsed lasers, and recently demonstrated for average power in the kW range for repetitive mode operation. We report the observation and characterisation of high fidelity PC via SBS of CW laser radiation in multimode silica fibre (core/ cladding diameters 50/125 mm, numerical aperture 0.1, attenuation of -1 dB/km). A 5x microscope lens was used to launch the pump signal from single mode CW Nd:YAG laser into the fibre, the ends of which were cleaved.
Keywords :
laser beams; laser modes; neodymium; optical fibres; optical phase conjugation; optical pumping; solid lasers; stimulated Brillouin scattering; 125 mm; 50 mm; 5x microscope lens; CW Nd: YAG laser radiation; CW laser radiation; SBS; SBS self-phase conjugation; YAG:Nd; YAl5O12:Nd; average power; beam clean-up; fibre cladding; fibre core; high fidelity PC; high power pulsed lasers; kW range; multimode silica fibre; optical fibre; phase conjugation; pump signal; repetitive mode operation; single mode CW Nd:YAG laser; stimulated Brillouin scattering; Apertures; Brillouin scattering; Fiber lasers; Laser beams; Laser modes; Optical attenuators; Optical pulses; Power lasers; Pump lasers; Silicon compounds;
Conference_Titel :
Lasers and Electro-Optics, 1999. CLEO '99. Summaries of Papers Presented at the Conference on
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-595-1
DOI :
10.1109/CLEO.1999.834182
