AMPLIFIER CHAIN FOR GENERATING ULTRASHORT DIFFERENT WIDTH LIGHT PULSES

摘要

The invention relates to an amplifier chain for generating ultrashort different width light pulses, in particular to amplifier chains for amplifying picosecond and femtosecond pulses. The inventive amplifier chain comprises a stretcher (STR) provided with at least one array-like input dispersive element (GS) for temporally stretching an incident pulse (1), an amplifying medium for amplifying said stretched pulse and a compressor which is provided with at least one input dispersive element substentially identical to that of the stretcher and is used for temporally compressing the amplified pulse. The inventive stretcher and compressor comprise means for displacing the dispersive elements between a first and a second position in such a way that an incident angle value<sub/