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For CO2 differential-absorption LIDAR, the single-mode output of a type-II PPLN entangled-cavity nanosecond doubly-resonant OPO emitting at 2.05 mum is amplified to 11 mJ, with 3 MHz rms frequency stability and a M2 < 1.9.
We present a new, low threshold, narrow linewidth, entangled cavity scheme for nanosecond OPO. Thanks to this compact design, open loop single longitudinal mode operation is achieved over hours with 5 MHz short term stability.
We demonstrate 100 GHz continuous tuning and ±3 MHz frequency stabilization of the signal radiation delivered by an entangled cavity nanosecond OPO while the frequency fluctuation of the pump radiation is larger than 500 MHz.
We show that gain in an OPO with a large walkoff between the pump and signal saturates just like a laser gain and thus CW pumped OPO can be directly mode-locked with high conversion efficiency.
An entangled cavity optical parametric oscillator is applied for photoacoustic spectroscopy in the wavelength range of 3.8–4.3 μm. High resolution spectra of N2O are reported around 3.8 and 4 μm.
An entangled cavity optical parametric oscillator is applied for photoacoustic spectroscopy in the wavelength range of 3.8-4.3 mum. High resolution spectra of N2O are reported around 3.8 and 4 mum.
We demonstrate 100 GHz continuous tuning and plusmn3 MHz frequency stabilization of the signal radiation delivered by an entangled cavity nanosecond OPO while the frequency fluctuation of the pump radiation is larger than 500 MHz.
We show that gain in an OPO with a large walkoff between the pump and signal saturates just like a laser gain and thus CW pumped OPO can be directly mode-locked with high conversion efficiency.
The OPO arrangement with intracavity OPA at the idler wavelength is experimentally and theoretically investigated in the context of pulsed devices emitting several mJ. Benefits and drawbacks are discussed versus the conventional singly resonant OPO.
Active mode-locking of a near degenerate (~1064 nm) doubly resonant periodically poled LiNbO3 OPO pumped at 532 nm is reported. Pulse durations as short as 700 ps are observed.
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