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We demonstrate the use of difference frequency generation to lock a visible CW Ti:sapphire laser to a femtosecond frequency comb spanning 1 to 2 mum generated by a fiber laser frequency comb.
The paper describes two approaches for minimization of phase noise of the comb generated from a mode-locked fiber laser. First is the implementation of higher speed actuators for control of the comb and second is direct generation of an octave of continuum
Absolute frequencies of an acetylene-stabilized laser at 1542 nm and an iodine-stabilized Nd:YAG at 1319 nm are measured at their second harmonics by use of a femtosecond optical comb based on a mode-locked Ti:sapphire laser. A frequency measurement system based on a mode-locked fiber laser (1.56mum) is also being developed for metrological applications in the telecommunication bands
We observed a 200-nm spectrum broadening of the third harmonics (520 nm) of an Er-doped mode-locked fiber laser (1560 nm) based on cross-phase modulation in a photonic crystal fiber.
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