Parametric gain measurement in grid nozzle multi-kW supersonic COIL

Oleg B. Vyskubenko; Kazuyoku Tei; Tadashi Ito; Goro Watanabe; Daichi Sugimoto; Noriyuki Takeuchi; Tomoo Fujioka

doi:10.1117/12.479846

5 June 2003 Parametric gain measurement in grid nozzle multi-kW supersonic COIL

Oleg B. Vyskubenko, Kazuyoku Tei, Tadashi Ito, Goro Watanabe, Daichi Sugimoto, Noriyuki Takeuchi, Tomoo Fujioka

Proceedings Volume 4971, Gas and Chemical Lasers and Intense Beam Applications IV; (2003) https://doi.org/10.1117/12.479846
Event: High-Power Lasers and Applications, 2003, San Jose, CA, United States

Abstract

Laser medium parameters of multi-kW grid nozzle supersonic Chemical Oxygen Iodine Laser (COIL) were experimentally studied. Small-signal gain (SSG) diagnostics was done by a narrow line width tunable laser by scanning 1 GHz range around (²P_1/2 ) - (²P_3/2) spin-orbit transition line of atomic iodine. SSG was investigated as a function of Mach number and gas flow rates. Modeling of gain for different flow conditions was done as well. Multi-kW COIL device was recently developed in Miki Pulley Co., Ltd. (Japan) and has 37.5 cm length of active medium.

Citation Download Citation

Oleg B. Vyskubenko, Kazuyoku Tei, Tadashi Ito, Goro Watanabe, Daichi Sugimoto, Noriyuki Takeuchi, and Tomoo Fujioka "Parametric gain measurement in grid nozzle multi-kW supersonic COIL", Proc. SPIE 4971, Gas and Chemical Lasers and Intense Beam Applications IV, (5 June 2003); https://doi.org/10.1117/12.479846

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