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Modeling and simulation of interaction of the ultrashort laser pulse with chirped mirror for structure design improvement

S. O. YAKUSHEV1, I. A. SUKHOIVANOV2, O. V. SHULIKA1,* , V. V. LYSAK1,3, S. I. PETROV3

Affiliation

  1. Kharkov National University of Radio electronics, Kharkov, Ukraine
  2. University Guanajuato, Salamanca, Mexico
  3. Gwangju Institute of Science and Technology, Gwangju, Republic of Korea

Abstract

The model for interaction of an ultrashort optical pulse with chirped mirror is developed through exact analysis of the pulse waveform. This allows to optimize chirped mirror design in terms of pulse parameters (duration, time-bandwidth product). Through waveform analysis we show existence of a range of layer numbers in the mirror, which provide simultaneously maximal pulse compression and minimal waveform distortion for the given incident chirped pulse. The model predicts possibility to obtain almost full pulse reconstruction under single reflection from the mirror. Using simulation we show that after reflection the pulse not only experiences compression but acquires waveform distortions as well. The pedestal on the leading edge of the pulse is due to group delay oscillation. Distortions of the trailing edge of the pulse are due to third-order dispersion in the mirror. Careful compensation of both dispersion parts results in full restoration of the pulse waveform. Magnitude and duration of the pulse can be restored via application of wider bandwidth chirped mirrors..

Keywords

Chirped mirrors, Dispersion compensation, Ultrashort pulses, Pulse compression.

Submitted at: May 30, 2007
Accepted at: Aug. 18, 2007

Citation

S. O. YAKUSHEV, I. A. SUKHOIVANOV, O. V. SHULIKA, V. V. LYSAK, S. I. PETROV, Modeling and simulation of interaction of the ultrashort laser pulse with chirped mirror for structure design improvement, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 8, pp. 2384-2390 (2007)