The carrier-envelope phase of the pulse train emitted by a 10-fs mode-locked laser has been stabilized such that carrier-envelope phase coherence is maintained for at least 150 s (measurement limited). The phase coherence time was measured independently of the feedback loop.
© 2002 Optical Society of America
Tara M. Fortier, David J. Jones, Jun Ye, Steven T. Cundiff, and Robert S. Windeler, "Long-term carrier-envelope phase coherence," Opt. Lett. 27, 1436-1438 (2002)