Quasi-phasematched optical parametric oscillators using bulk periodically poled LiNbO3

Lawrence E. Myers; Robert C. Eckardt; Martin M. Fejer; Robert L. Byer

doi:10.1117/12.206465

10 April 1995 Quasi-phasematched optical parametric oscillators using bulk periodically poled LiNbO3

Lawrence E. Myers, Robert C. Eckardt, Martin M. Fejer, Robert L. Byer

Proceedings Volume 2379, Solid State Lasers and Nonlinear Crystals; (1995) https://doi.org/10.1117/12.206465
Event: Photonics West '95, 1995, San Jose, CA, United States

Abstract

We review progress of quasi-phasematched (QPM) optical parametric oscillators (OPOs) in bulk periodically poled LiNbO₃. Using the electric field poling process, we can reliably fabricate 0.5-mm thick crystals with uniform domain structures over 15-mm long. Periodically poled material retains the low loss and bulk power handling properties of single domain LiNbO₃, and QPM allows noncritical phasematching with the highest value of the nonlinear coefficient. OPOs pumped by 1.064-micrometers pulsed Nd:YAG lasers have been operated over the wavelength range 1.45 micrometers to 4.0 micrometers with tuning by temperature or QPM period. We have shown oscillation threshold as low as 0.020 mJ with a Q-switched pump laser, and pumping over two times threshold without damage. We have also demonstrated a doubly resonant oscillator near 1.96 micrometers pumped directly with a cw diode laser at 978 nm.

Citation Download Citation

Lawrence E. Myers, Robert C. Eckardt, Martin M. Fejer, and Robert L. Byer "Quasi-phasematched optical parametric oscillators using bulk periodically poled LiNbO3", Proc. SPIE 2379, Solid State Lasers and Nonlinear Crystals, (10 April 1995); https://doi.org/10.1117/12.206465

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