Multimode dynamics of a sinusoidally modulated, diode-pumped Nd:YAG laser

Neal Broadus Abraham; L. L. Everett; C. Iwata; M. B. Janicki

doi:10.1117/12.183097

10 August 1994 Multimode dynamics of a sinusoidally modulated, diode-pumped Nd:YAG laser

Neal Broadus Abraham, L. L. Everett, C. Iwata, M. B. Janicki

Proceedings Volume 2095, Laser Physics; (1994) https://doi.org/10.1117/12.183097
Event: Laser Optics, 1993, St. Petersburg, Russian Federation

Abstract

Pump modulation is used to explore multimode interactions in an standing-wave Nd:YAG laser. Large amplitude modulation drives the system into apparent period doubling cascades and chaos as are expected for the nonlinear oscillations of the driven relaxation oscillations of the laser. However, examination of the intensity fluctuations and intensity power spectra of individual modes indicates that anti-phased fluctuations and subharmonic resonances are quite common and that they masquerade as simpler period-doubling phenomena. Even the sinusoidal response of a multimode laser to weak modulation is found to reveal multimode couplings in the distortions of the resonant frequency and width of the resonance as the pump current is raised, bringing more modes into the dynamics and strengthening the side modes.

Citation Download Citation

Neal Broadus Abraham, L. L. Everett, C. Iwata, and M. B. Janicki "Multimode dynamics of a sinusoidally modulated, diode-pumped Nd:YAG laser", Proc. SPIE 2095, Laser Physics, (10 August 1994); https://doi.org/10.1117/12.183097

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