Demonstration of broadband intracavity spectroscopy in a pulsed optical parametric oscillator made of β-barium borate
- 1 September 1993
- journal article
- Published by Optica Publishing Group in Journal of the Optical Society of America B
- Vol. 10 (9) , 1778-1784
- https://doi.org/10.1364/josab.10.001778
Abstract
Broadband intracavity-absorption spectroscopy is demonstrated in a singly idler-resonant optical parametric oscillator made of β-barium borate, pumped by the third harmonic of an injection-seeded Q-switched Nd:YAG laser. IR 1.53-μm absorption of idler radiation by transitions of acetylene is detected with enhanced sensitivity in the upconverted spectrum of the signal radiation at 461 nm. Quantitative comparison of computer-simulated pulse-energy spectra with experimental absorption spectra indicates that the experimental detection sensitivity is close to the theoretical limit.Keywords
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