A Lyapunov functional in the chi2 dynamics of intracavity frequency-doubled lasers establishes a constant-intensity manifold that suppresses amplitude noise, experimentally confirmed by 100-fold contrast in an Nd:YVO4-LBO system.
No restriction on mode count, no assumption of weak coupling, and no prior assumption on phase organization is needed
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2026 1verdicts
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Amplitude Noise Suppression in Frequency-Doubled Lasers: A Lyapunov Mechanism for Intensity Stabilization in Coupled Oscillator Systems
A Lyapunov functional in the chi2 dynamics of intracavity frequency-doubled lasers establishes a constant-intensity manifold that suppresses amplitude noise, experimentally confirmed by 100-fold contrast in an Nd:YVO4-LBO system.