Mechanism of laser Q switching by intracavity stimulated scattering

Journal Article · Sat Mar 01 00:00:00 EST 1980 · Sov. J. Quant. Electron. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1070/QE1980v010n03ABEH010098· OSTI ID:5160685

Bezrodnyi, V I; Ibragimov, F I; Kislenko, V I; Petrenko, R A; Strizhevskii, V L; Tikhonov, E A

An experimental investigation was made of Q switching of a laser resonator by intracavity stimulated Brillouin scattering. It was found that reduction in the high initial Q factor of the resonator by distortion of the transverse structure of the radiation (for example, by the use of an active element of low optical quality) resulted in effective modulation of the Q factor because of wavefront reversal in the scattering. When the active medium was YAG:Nd/sup 3 +/, single giant pulses of 25--30 nsec duration, peak power 0.3--0.5 MW, and repetition frequency up to 100 Hz were obtained without circulation of the scattering substance in the Q switch.

• Research Organization: T. G. Shevchenko State University, Kiev
• OSTI ID: 5160685
• Journal Information: Sov. J. Quant. Electron. (Engl. Transl.); (United States), Vol. 10:3
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
NEODYMIUM LASERS
Q-SWITCHING
BRILLOUIN EFFECT
COHERENT SCATTERING
MODULATION
PULSES
LASERS
SCATTERING
SOLID STATE LASERS
420300* - Engineering- Lasers- (-1989)