Abstract

A tunable KTiOPO₄ optical parametric oscillator (OPO) operating in a single longitudinal mode of its resonator is described. Single-mode operation has been achieved by use of an intracavity Fabry–Perot étalon in a short-length OPO resonator. The crystal is pumped by the second harmonic of an injection-seeded Nd:YAG laser. The tuning range observed with a crystal cut at 60° is 0.75–0.87 μm for the signal beam and 1.83–1.37 μm for the idler beam. The linewidth of the OPO is approximately 200 MHz (0.0066 cm⁻¹), which is close to the Fourier-transform limit. The total output energy was measured to be as much as 0.6 mJ per pulse.

© 1995 Optical Society of America

Generation of 3–4-μm femtosecond pulses from a synchronously pumped, critically phase-matched KTiOPO₄ optical parametric oscillator

S. W. McCahon, S. A. Anson, D.-J. Jang, and Thomas F. Boggess
Opt. Lett. 20(22) 2309-2311 (1995)

Single-mode near-infrared optical parametric oscillator amplifier based on periodically poled KTiOPO₄

Glenn W. Baxter, Philip Schlup, Iain T. McKinnie, Jonas Hellström, and Fredrik Laurell
Appl. Opt. 40(36) 6659-6662 (2001)

Highly efficient single-longitudinal-mode β-BaB₂O₄ optical parametric oscillator with a new cavity design

J. M. Boon-Engering, L. A. W. Gloster, W. E. van der Veer, I. T. McKinnie, T. A. King, and W. Hogervorst
Opt. Lett. 20(20) 2087-2089 (1995)

Singly resonant continuous-wave mode-locked KTiOPO₄ optical parametric oscillator pumped by a Nd:YAG laser

J. Chung and A. E. Siegman
J. Opt. Soc. Am. B 10(11) 2201-2210 (1993)

Design criteria and comparison of femtosecond optical parametric oscillators based on KTiOPO₄ and RbTiOAsO₄

D. T. Reid, M. Ebrahimzadeh, and W. Sibbett
J. Opt. Soc. Am. B 12(11) 2168-2179 (1995)