Title :
Short-wavelength stimulated Raman scattering in a silica fiber pumped by an XeBr excimer laser
Author :
Mizunami, Toru ; Takagi, Keiji
Author_Institution :
Dept. of Electr. Eng., Kyushi Inst. of Technol., Japan
fDate :
8/1/1989 12:00:00 AM
Abstract :
A UV-grade silica optical fiber was pumped by a 281.8-nm XeBr excimer laser. The first Stokes spectrum was observed at 285 nm. The spectral width was one-half of that of the spontaneous Raman spectrum. A numerical analysis of stimulated Raman scattering which includes two-photon absorption loss is presented. The Raman gain coefficient, determined by an analysis of the nonlinearity observed in the Stokes output, was 1.8×10-5 cm/MW. The analysis also indicates that two-photon absorption is a more important loss factor than linear attenuation. The short wavelength limit of net amplification by stimulated Raman scattering is estimated to be 272 nm
Keywords :
optical fibres; optical losses; optical pumping; silicon compounds; stimulated Raman scattering; two-photon processes; 272 to 285 nm; Raman gain coefficient; SiO2; Stokes spectrum; UV; XeBr excimer laser; amplification; nonlinearity; numerical analysis; pumping; short wavelength; silica optical fiber; spectral width; stimulated Raman scattering; two-photon absorption loss; Absorption; Attenuation; Fiber lasers; Laser excitation; Numerical analysis; Optical fibers; Optical losses; Pump lasers; Raman scattering; Silicon compounds;
Journal_Title :
Quantum Electronics, IEEE Journal of
