LAUSR

Abstract We are presenting an overview of designed and implemented LabVIEW-based f-to-2f spectral interferometer for carrier-envelope phase (CEP) monitor and stabilization of high-power femtosecond laser system. This automated method applied successfully to the femtosecond laser system working at 1-kHz repetition rate and focused on the amplified pulses. The slow CEP variations observed and suppressed using LabVIEW software and hardware by generating feedback to the direct locking electronics of the CEP stabilized oscillator. The LabVIEW code designed efficiently to acquire the data, filter the signal to minimize the noise and to generate a feedback signal from the slow CEP variations of consecutive pulses. The multitask coding technique adopted in LabVIEW coding to enhance the speed of data acquisition and the feedback generation. The CEP variation monitored and controlled precisely in real-time.