Mode Selection and Amplification of an Optical Frequency Comb Using Femto-Second Laser Injection locking Technique

We have demonstrated the selection and the amplification of the components of an optical frequency comb using femto-second laser injection-locking technique.We used a mode-locked Ti:sapphire laser as a master laser and a single-mode diode laser as a slave laser. After passing through the interference filter with the center wavelength 794.7 nm and the transmittance bandwidth 1.5 nm, the optical frequency comb by mode-locked femto-second laser was injected into the slave laser. The injection-locked slave laser had 3-4 multi-mode with the mode spacing 100.5 MHz, whichcorrespond to the repetition rate of a mode-locked Ti:sapphire laser. The power of the modes selected by femto-second laser injection-locking technique was amplified to several thousands times