A stable passively synchronized femtosecond laser has been realized by coupling two 1.3 W mode-locked Ti:sapphire lasers with a Kerr medium. An ultralong tolerance of 10 µm for the cavity length mismatch and a timing jitter of less than 0.4 fs were obtained. The relative carrier-envelope phase slip was directly observed by measuring the heterodyne output between the two lasers.
© 2005 Optical Society of America
Jinrong Tian, Zhiyi Wei, Peng Wang, Hainian Han, Jun Zhang, Linghui Zhao, Zhaohua Wang, Jie Zhang, Tao Yang, and Jianwei Pan, "Independently tunable 1.3 W femtosecond Ti:sapphire lasers passively synchronized with attosecond timing jitter and ultrahigh robustness," Opt. Lett. 30, 2161-2163 (2005)