We have demonstrated, for the first time to our knowledge, a coupled tandem optical parametric oscillator (OPO) configuration in which a second OPO is placed within the resonator of the first, , OPO. A significant enhancement in the overall cascaded efficiency of this OPO compared with standard two-stage OPO’s was observed. With a multimode Nd:YAG laser, an overall optical-to-optical efficiency (from to the mid IR) of 5.2% was obtained from operating only times above oscillation threshold. The measured overall slope efficiency was attractively high at 35%. With a single set of mirrors we obtained a broad wavelength-tuning range from 2.7 to .
© 1998 Optical Society of AmericaFull Article | PDF Article
OSA Recommended Articles
S. T. Yang, R. C. Eckardt, and R. L. Byer
J. Opt. Soc. Am. B 10(9) 1684-1695 (1993)
Jean-Jacques Zondy, Vitaliy Vedenyapin, Alexander Yelisseyev, Sergei Lobanov, Ludmila Isaenko, and Valentin Petrov
Opt. Lett. 30(18) 2460-2462 (2005)
Opt. Lett. 19(19) 1535-1537 (1994)