System and method for compressing short or ultra-short light pulses, and associated light-pulsed laser system

A method for temporally compressing short or ultra-short light pulses emitted by a light source (2),

• wherein said method comprises successively:
• a first step of non-linear light pulse compression by a first non-linear light pulse compression module (10), said first module (10) comprising a multi-pass cell (14), the multi-pass cell (14) comprising a first non-linear optical medium, and
• a second step of non-linear light pulse compression by a second non-linear light pulse compression module (20), said second module (20) comprising a capillary (24) filled with a second gaseous non-linear optical medium and a compressor (28) arranged at the output of the capillary (24),
• the first non-linear compression module (10) and the second non-linear compression module (20) being arranged in series on the path of a source light beam (100) of source light pulses, the first non-linear compression module (10) being arranged upstream of the second non-linear compression module (20).