单模均匀加宽拉曼激光器的自脉冲不稳定性和混沌路径的论证

International Meeting on Instabilities and Dynamics of Lasers and Nonlinear Optical Systems Pub Date : 1900-01-01 DOI:10.1364/idlnos.1985.wc1

R. Harrison, D. J. Biswas, I. A. Al-Saidi

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引用次数: 0

摘要

我们报道了单模均匀加宽拉曼激光器的巨大脉冲不稳定性。观察到鲁埃尔采取的、间歇的和周期加倍的混沌路径。该激光器以NH3为有效介质，用CO2激光器近共振泵浦在aR(6,0)跃迁上，在~ 12.8 μm处发射aP(8,0)跃迁。在NH3压力1 - 20 torr和泵浦强度~ 600 kW/cm2(我们实验的操作条件)下，这种激光跃迁最近被清楚地确定为拉曼源，并且具有极高的增益~ 10% cm - 1[1]。

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Demonstration of Self-Pulsing Instabilities and Routes to Chaos in a Single Mode Homogeneously Broadened Raman Laser

We report huge pulsating instabilities in a single mode homogeneously broadened Raman laser. Ruelle-Taken, intermittent and period-doubling routes to chaos are observed. The laser, which uses NH3 as the active medium near-resonantly pumped on the aR(6,0) transition by a CO2 laser, emits on aP(8,0) transition at ~ 12.8 μm. This lasing transition has recently been clearly identified as Raman in origin for NH3 pressures 1 - 20 torr and pump intensity ~ 600 kW/cm2 (operating conditions for our experiment) and possesses extremely high gain ~ 10% cm−1 [1].

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International Meeting on Instabilities and Dynamics of Lasers and Nonlinear Optical Systems

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