Laser Pulse Compression and Amplification by Stimulated Backward Raman Scattering of Ba(NO3)2 and CaCO3 Crystals

• Published in: Rēzā kenkyū Vol. 31; no. 12; pp. 854 - 859
• Main Authors: DEKI, Kyoichi, MATSUOKA, Fumiaki, TEI, Kazuyoku, ARISAWA, Takashi
• Format: Journal Article
• Language: Japanese; English
• Published: Suita The Laser Society of Japan 2003; Laser Society of Japan
• Subjects: Laser pulse compression; Short pulse laser; Stimulated backward Raman scattering
• ISSN: 0387-0200; 1349-6603
• DOI: 10.2184/lsj.31.854

Pulse compressor and amplifier using stimulated backward Raman scattering (SRS) of barium nitrate and calcite crystals are studied experimentally. 15 times of compression and more than 50 % SRS reflectivity were obtained with a 350 ps Nd:YAG fundamental laser as pump. Generation of two consecutive (the main and the second) pulses was observed in the Raman generator. A method to suppress the second pulse in Raman generator and selective amplification of the main pulse in Raman amplifier are also studied experimentally.