title: Long-term carrier-envelope-phase stabilization of a femtosecond laser by the direct locking method.
abstract: We have developed a practical solution to implement the direct locking method for the carrier-envelope phase (CEP) stabilization of femtosecond laser pulses and achieved 24-hour CEP stabilization without realignment of any optical components. The direct locking method realizes the CEP stabilization in the time domain by directly quenching the beat signal from an f-to-2f interferometer and, thereby, locking every pulse to a same CEP. We have accomplished the long-term CEP stabilization using commercially available standard feedback electronics, and maintained the CEP stabilization with low jitter without using any frequency-analyzing components, greatly facilitating the accessibility of the CEP stabilization.
authors: Dept of Physics and Coherent X-ray Research Center, Korea Advanced Institute of Scienceand Technology, Daejeon 305-701, Korea.
authors: Jae-hwan
authors: JH
authors: Lee
authors: Yong Soo
authors: YS
authors: Lee
authors: Juyun
authors: J
authors: Park
authors: Tae Jun
authors: TJ
authors: Yu
authors: Chang Hee
authors: CH
authors: Nam
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D005246:Feedback; D007368:Interferometry / Q000295:instrumentation*; D007834:Lasers; D008029:Lighting / Q000295:instrumentation*; D009991:Oscillometry / Q000295:instrumentation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity