100-attosecond timing jitter between two-color mode-locked lasers by active-passive hybrid synchronization.
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.
Yoshitomi
Dai
D
National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba 305-8568, Japan. d.yoshitomi@aist.go.jp
Kobayashi
Yohei
Y
Takada
Hideyuki
H
Kakehata
Masayuki
M
Torizuka
Kenji
K