NONLINEAR OPTICAL EFFECTS AND DEVICES: Compensation of self-focusing distortions in quasiresonant amplification of a light pulse
Abstract
A theoretical analysis is made of the compensation of a positive nonlinear refractive index of insulators containing impurities by saturation of the refractive index in the anomalous dispersion region. The exact solutions are obtained for self-similar amplification of a laser pulse under conditions of homogeneous broadening of a resonant transition. It is shown that profiling of the time envelope of a steady-state bleaching wave of a saturable absorber together with detuning of the pulse frequency upward from resonance makes it possible to increase the threshold of small-scale self-focusing.
- Publication:
-
Quantum Electronics
- Pub Date:
- February 1988
- DOI:
- 10.1070/QE1988v018n02ABEH011482
- Bibcode:
- 1988QuEle..18..233O