Yanyi Jiang et al 2005 Metrologia 42 304 doi:10.1088/0026-1394/42/4/016
Yanyi Jiang1, Zhiyi Bi1, Lennart Robertsson2 and Long-Sheng Ma1,2,3
Show affiliationsWe demonstrate a simplified set-up for control of the carrier-envelope offset frequency (fceo) in a Ti : sapphire femtosecond laser frequency comb. A periodically poled KTiOPO4 crystal is used for second harmonic generation with zero walk-off angle, which enables collinear propagation of beating beams in the self-referencing set-up. A beat signal with a signal-to-noise ratio of more than 40 dB can be obtained within a 300 kHz bandwidth. Using this signal, fceo could be tracked to a frequency synthesizer within a few millihertz for an averaging time of 1 s, which contributed a relative stability of 8 × 10−18 in the visible region around 532 nm.
42.55.Rz Doped-insulator lasers and other solid state lasers
42.60.Lh Efficiency, stability, gain, and other operational parameters
42.65.Ky Frequency conversion; harmonic generation, including higher-order harmonic generation
42.65.Re Ultrafast processes; optical pulse generation and pulse compression
Issue 4 (August 2005)
Received 31 January 2005
Published 24 June 2005
Yanyi Jiang et al 2005 Metrologia 42 304
C Mukku et al 1997 J. Phys. A: Math. Gen. 30 3003
Z Dehouche et al 2005 Nanotechnology 16 402
M A Rodríguez-Valverde et al 2003 Eur. J. Phys. 24 159
Tomas Kron et al 2002 Phys. Med. Biol. 47 713
A S Kheifets et al 2002 J. Phys. B: At. Mol. Opt. Phys. 35 L15
Xiao-Dong Sun and Shi-kun Wang 1993 J. Phys. A: Math. Gen. 26 L293
U Mizutani et al 1990 J. Phys.: Condens. Matter 2 6169
Tomaž Fabčič et al 2005 J. Phys. B: At. Mol. Opt. Phys. 38 S219
L Coslovi et al 1979 J. Phys. E: Sci. Instrum. 12 216