Abstract
Thermal lensing and dephasing are evidenced to be responsible of the output power saturation of continuous-wave (cw) doubly/triply resonant mid-IR silver gallium sulfide parametric oscillators. The threshold for oscillation is critically dependent on the cavity geometry. A theoretical TRO model including thermally induced Kerr effect is introduced to account for the observed power limitation to the milliwatt range.
© 1999 Optical Society of America
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