Picojoule threshold, picosecond optical parametric generation in reverse proton-exchanged lithium niobate waveguides
JOSA B, Vol. 21, Issue 7, pp. 1397-1402 (2004)
http://dx.doi.org/10.1364/JOSAB.21.001397
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Abstract
We have demonstrated picosecond optical parametric generation in reverse proton-exchanged waveguides in periodically poled lithium niobate with thresholds as low as 200 pJ. Near-transform-limited near-infrared pulses were obtained from cascaded optical parametric generation. For a 1.8-ps (FWHM) pump pulse at 769.6 nm, a saturated internal photon-conversion efficiency of 33% was obtained with 1 nJ of pump energy. The signal-wavelength tuning range was from 1.15 μm to 2.3 μm with a pump wavelength between 770 nm and 789.5 nm. Numerical simulations well predicted the mechanism for the transform-limited pulse generation. These results enable optical parametric generation devices with low threshold and good temporal properties with a simple single-pass setup.
© 2004 Optical Society of America
OCIS Codes
(070.4550) Fourier optics and signal processing : Correlators
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(320.5390) Ultrafast optics : Picosecond phenomena
(320.7080) Ultrafast optics : Ultrafast devices
Citation
Xiuping Xie, Andrew M. Schober, Carsten Langrock, Rostislav V. Roussev, Jonathan R. Kurz, and Martin M. Fejer, "Picojoule threshold, picosecond optical parametric generation in reverse proton-exchanged lithium niobate waveguides," J. Opt. Soc. Am. B 21, 1397-1402 (2004)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-21-7-1397
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