Calibration of interferometric autocorrelation trace for femtosecond pulse in frequency domain and the real-time chirp diagnostic for Ti:sapphire oscillator | Zendy

Xudong Xie | Zendy; Qingyue Wang | Zendy; Chai Lu | Zendy

Open Access

Calibration of interferometric autocorrelation trace for femtosecond pulse in frequency domain and the real-time chirp diagnostic for Ti:sapphire oscillator

Author(s) -

Xudong Xie,

Qingyue Wang,

Chai Lu

Publication year - 2005

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.54.3657

Subject(s) - chirp , femtosecond , autocorrelation , interferometry , optics , pulse (music) , materials science , sapphire , physics , time domain , ultrashort pulse , femtosecond pulse shaping , fourier transform , laser , computer science , mathematics , statistics , quantum mechanics , detector , computer vision

The time delay of interferometric autocorrelation trace of femtosecond pulse was calibrated in frequency domain. By virtue of the calibrated interferometric aut ocorrelation trace, root-mean-square width and chirp parameter of the femtosecon d pulse to be measured were calculated. Based on these parameters, the Ti:sapphi re oscillator was optimized to generate 115fs pulse in full width at half ma ximum, which was very close to the width of the transform-limited pulse. The mea surement involved only an integration and a fast Fourier transform. Consequently , real-time chirp diagnostics for Ti:sapphire oscillator was feasible.

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