We have demonstrated a reduction of the timing jitter between passively synchronized Ti:sapphire and Cr:forsterite mode-locked lasers into a 100-attosecond (as) regime by suppressing slow fluctuations with the use of active slow-bandwidth extracavity feedback. This active-passive hybrid synchronization scheme permits the achievement of timing jitters of 98±18 as at a bandwidth of 100 kHz and of 126±20 as at a bandwidth of 1 MHz for as long as 100 s.
© 2005 Optical Society of America
Dai Yoshitomi, Yohei Kobayashi, Hideyuki Takada, Masayuki Kakehata, and Kenji Torizuka, "100-attosecond timing jitter between two-color mode-locked lasers by active-passive hybrid synchronization," Opt. Lett. 30, 1408-1410 (2005)