Coherent multi-frequency optical source generation using a femto-second laser and its application for coherent population trapping

• Published in: Optics express Vol. 15; no. 6; pp. 3265 - 3270
• Main Authors: Moon, H S, Park, S E, Kim, E B
• Format: Journal Article
• Language: English
• Published: United States 19.03.2007
• ISSN: 1094-4087; 1094-4087
• DOI: 10.1364/OE.15.003265

We present a coherent multi-frequency source generated from a mode-locked femto-second laser. The key concept for the coherent multi-frequency source generation is using the mode-locked femto-second laser as many continuous wave (CW) optical sources. We simultaneously selected and amplified the desired modes of the optical frequency comb using femto-second laser injection-locking (FSLIL). Using two coherent sources generated by the mode-locked femto-second laser, we have demonstrated a coherent spectroscopy in a Lambda-type system of the Cs D2 line. The proposed coherent multi-frequency source generation technique will be a useful technique for optical frequency standards based on multi-photon schemes.