We report on what we believe to be the first active mode locking of near-degenerate, doubly and singly resonant cw-pumped optical parametric oscillators (OPOs). We show experimentally that a steady-state regime of short pulses is reached in a few tens of microseconds under cw pumping. The oscillation buildup dynamics of both OPOs is also explored, evidencing an unusual transient behavior in the mode-locking process.
© 2007 Optical Society of America
Original Manuscript: January 16, 2007
Revised Manuscript: April 11, 2007
Manuscript Accepted: April 13, 2007
Published: June 6, 2007
Jean-Michel Melkonian, Nicolas Forget, Fabien Bretenaker, Cyril Drag, Michel Lefebvre, and Emmanuel Rosencher, "Active mode locking of continuous-wave doubly and singly resonant optical parametric oscillators," Opt. Lett. 32, 1701-1703 (2007)