Transient dynamics of CW intracavity singly resonant optical parametric oscillators

We study the transient dynamics of CW intracavity, singly-resonant optical parametric oscillators (ICSROs). Relaxation oscillations of the 1064-nm pump light are measured, in both the presence and absence of parametric conversion, in a periodically poled LiNbO/sub 3/ (PPLN) CW ICSRO pumped intracavi...

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Bibliographic Details
Published in:IEEE journal of quantum electronics 1999-11, Vol.35 (11), p.1666-1672
Main Authors: Turnbull, G.A., Stothard, D.J.M., Ebrahimzadeh, M., Dunn, M.H.
Format: Article
Language:English
Subjects:
Conversion
Damping
Doped-insulator lasers and other solid state lasers
Dynamic tests
Dynamics
Exact sciences and technology
Frequency conversion
Frequency conversion
harmonic generation, including high-order harmonic generation
Fundamental areas of phenomenology (including applications)
Harmonic generation, frequency conversion
Laser excitation
Laser theory
Lasers
Nonlinear optics
Optical Parametric Oscillators
Optical parametric oscillators and amplifiers
Optical pumping
Optics
Oscillations
Oscillators
Physics
Pump lasers
Pumps
Resonance
Thermal lensing
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Summary:We study the transient dynamics of CW intracavity, singly-resonant optical parametric oscillators (ICSROs). Relaxation oscillations of the 1064-nm pump light are measured, in both the presence and absence of parametric conversion, in a periodically poled LiNbO/sub 3/ (PPLN) CW ICSRO pumped intracavity to a Nd:YVO/sub 4/ laser. The presence of parametric conversion is shown to significantly increase both the damping times and oscillation frequencies of the dynamics; at three times the parametric oscillator threshold, these take values of 200 /spl mu/s and 2 MHz, respectively. Oscillation frequencies are shown to be in good agreement with theoretical values. The influence of energy diffusion and thermal lensing are analyzed to account for discrepences between measured and theoretical damping times. We discuss the implications of the dynamic behavior to the stable-power operation of CW ICSROs.
ISSN:0018-9197
1558-1713
DOI:10.1109/3.798090