TY - CPAPER AU - Oliver Mücke AU - O. Kuzucu AU - F. Wong AU - E. Ippen AU - F. Kaertner AU - S. Foreman AU - D. Jones AU - L.-S. Ma AU - John Hall AU - Jun Ye AB - We demonstrate optical clockwork without the need for carrier-envelope phase control by use of sum-frequency generation between a continuous-wave optical parametric oscillator at 3.39μm and a femtosecond mode-locked Ti:sapphire laser with two strong spectral peaks at 834 and 670 nm, a spectral difference matched by the 3.39-μm radiation. © 2004 Optical Society of America BT - unknown CY - Rio Grande, Puerto Rico DA - 2004-12 DO - 10.1109/LEOS.2004.1363344 N2 - We demonstrate optical clockwork without the need for carrier-envelope phase control by use of sum-frequency generation between a continuous-wave optical parametric oscillator at 3.39μm and a femtosecond mode-locked Ti:sapphire laser with two strong spectral peaks at 834 and 670 nm, a spectral difference matched by the 3.39-μm radiation. © 2004 Optical Society of America PB - IEEE PP - Rio Grande, Puerto Rico PY - 2004 SN - 0-7803-8557-8 T2 - unknown TI - Optical clockwork without carrier-envelope phase control ER -