We report a tunable stimulated-Brillouin-scattering resonator that does not require a starting mirror or a wavelength selector. The resonator is based on the Bragg scattering from the dynamic grating within the active medium itself. The laser dye (Rhodamine 6G dissolved in ethanol) was utilized as the active medium and was pumped by a frequency-doubled Nd:YAG laser. The quality factor (M2) of the output beam was 2.2. A single short pulse (<1 ns) with a pumping efficiency of ∼4% was observed.
© 2000 Optical Society of America
(140.2050) Lasers and laser optics : Dye lasers
(140.3490) Lasers and laser optics : Lasers, distributed-feedback
(190.5040) Nonlinear optics : Phase conjugation
(190.5890) Nonlinear optics : Scattering, stimulated
(290.5900) Scattering : Scattering, stimulated Brillouin
Hyun Su Kim, Do-Kyeong Ko, E. C. Jung, Changhwan Lim, Gwon Lim, Byung Heon Cha, and Jongmin Lee, "Tunable stimulated-Brillouin-scattering resonator started by feedback provided by Bragg scattering from the dynamic grating within an active medium," Opt. Lett. 25, 399-401 (2000)