繰り返しパルスレーザー用誘導ブリルアン散乱位相共役鏡の熱効果
2001 年 29 巻 2 号 p. 109-114
詳細
2001 年 29 巻 2 号 p. 109-114
We designed and demonstrated two new schemes to improve the performance of stimulated Brillouin scattering (SBS) cells for a high average power laser. By introducing a lamellar flow cell, thermallyinducedefocusingand convection via laser light absorption were removed. By inserting a rotational wedge plate, the spot wasrotated in time and locate heat sources were diffused. As a result, the SBS reflectivity and fidelity wereimproved dramatically with acetone. Using the cell, the operational power can be improved by as much asseveral hundred times the closed-type. If a medium with a small absorption coefficient such asheavy fluorocarbonsis used, the phase conjugate performance enables the incident power to reach a kW level.
