Affiliation:
1. Fujian Institute of Research on the Structure of Matter
2. Anhui Institute of Optics and Fine Mechanics
3. University of Central Florida
4. Royal Institute of Technology
Abstract
We present a tunable (6.62-11.34 µm), singly-resonant, cascade optical parametric oscillator with intracavity pumping of BaGa2GeSe6 in the second stage and spectral narrowing realized by a Volume Bragg Grating acting on the signal wave of the first stage which serves as a pump for the second stage. The maximum energy achieved near 8 µm in the narrowband regime is 1.1 mJ at 100 Hz (spectral width: ∼20 cm-1, pulse duration: ∼7 ns). The overall conversion efficiency from 1 to 8 µm for broadband and narrowband operation is 4.0% and 3.1%, respectively, corresponding to quantum efficiencies of 31% and 23%.
Subject
Atomic and Molecular Physics, and Optics
Cited by
13 articles.
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