Abstract
The performance and reliability of optical parametric oscillators (OPO) has improved markedly with the availability of high-quality pump laser sources and of new nonlinear optical materials, such as β-barium borate (BBO).1,2 This yields enhanced OPO conversion efficiency and output power over a wide tuning range. For instance, we have shown3 that a BBO OPO, pumped by pulsed 355-nm radiation from a single-mode injection-seeded Nd: YAG laser, can attain a total (signal + idler) output pulse energy of ≥100 mJ throughout the tuning range 430 nm −2.0 µm, with maximum conversion efficiency >60%.
© 1992 Optical Society of America
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