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Updated: Jun 11, 2026
Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
Published on: May 30, 2014
One-Watt level mid-IR output, singly resonant, continuous-wave optical parametric oscillator pumped by a monolithic
Ab F Nieuwenhuis1, Chris J Lee, Bernd Sumpf
11Laser physics and Nonlinear Optics Group, MESA + Institute for Nanotechnology, University of Twente, Enschede, The Netherlands. a.f.nieuwenhuis@utwente.nl
Abstract:
We report more than 1.1 Watt of idler power at 3373 nm in a singly resonant optical parametric oscillator (SRO), directly pumped by a single-frequency monolithic tapered diode laser. The SRO is based on a periodically poled MgO:LiNbO3 crystal in a four mirror cavity and is excited by 8.05 W of 1062 nm radiation. The SRO pump power at threshold is 4 W. The internal slope-efficiency and conversion efficiency reach 89% and 44% respectively. The signal and idler waves are temperature tuned in the range of 1541 to 1600 nm and 3154 to 3415 nm respectively. To the best of our knowledge, this is the highest output obtained for a diode pumped optical parametric oscillator (OPO), and the first time a SRO is directly pumped by a monolithic tapered diode laser.
