A pressure gradient method for spectral broadening of intense-femtosecond laser pulses in gas-filled hollow fiber is proposed. The simulations using input energy of 6 mJ and pulse duration of 40 fs have shown that using the same value of f p(x)dx, the energy transmittance can be enhanced by a factor of 25% compared to that of using constant gas pressure while the global spatial phase is also improved.
|Number of pages||9|
|Journal||Journal of Nonlinear Optical Physics and Materials|
|Publication status||Published - 1 Jan 2004|
- Hollow wave guide
- Pulse compression
- Spectral broadening