High-power CW linearly polarized all-fiber Raman laser

• Published in: IEEE photonics technology letters Vol. 16; no. 4; pp. 1014 - 1016
• Main Authors: Skubchenko, S.A., Vyatkin, M.Y., Gapontsev, D.V.
• Format: Journal Article
• Language: English
• Published: New York IEEE 01-04-2004; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Birefringence; Conversion; Fiber lasers; Fluid flow; Gas lasers; Gratings; Laser excitation; Lasers; Optical design; Optical fiber polarization; Photonics; Polarization; Power generation; Pump lasers; Pumps; Raman lasers; Stimulated emission; Wavelengths
• ISSN: 1041-1135; 1941-0174
• DOI: 10.1109/LPT.2004.823725

We demonstrate a high-power continuous-wave linearly polarized all-fiber Raman laser. The maximum Stokes output power of 4.7 W at 1120-nm wavelength with conversion slope efficiency of 87% was achieved. It is shown that Raman laser threshold greatly depends on pump polarization degree while Raman laser polarization depends on the design of Raman converter rather than on polarization of the pump laser. Slope efficiency was found to be independent on pump polarization degree.