Amplitude Systemes

Centre National De La Recherche Scientifique

Ecole Polytechnique

Amplitude

Institut D'optique Graduate School

Yoann Zaouter

Marc Hanna

Eric Mottay

Frederic Druon

Dimitris Papadopoulos

Eric Cormier

Patrick Georges

Louis Daniault

Loïc Lavenu

Frédéric Druon

Florent Guichard

Disclosed is a system for compressing short or ultra-short light pulses emitted by a light source. The compression system includes: —a first non-linear light pulse compression module including a multi-pass cell, the multi-pass cell including a first non-linear optical medium; and —a second non-linear light pulse compression module including a capillary filled with a gaseous second non-linear optical medium, and a compressor arranged at the output of the capillary, the first non-linear compression module and the second non-linear compression module being arranged in series on the path of a source light beam of source light pulses. Also disclosed is a light-pulses laser system and to a method for compressing short or ultra-short light pulses.

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

A method and passive device for the coherent combination of two amplified and/or spectrally broadened optical beams using at least one bidirectional optical component (A, A), the device includes an amplitude division ring interferometer having optical splitting and recombining elements disposed so as to receive an incident optical beam (S) and to split it spatially into a first secondary input beam (H) and a second secondary input beam (H), optical guiding elements disposed so as to define an optical path in the form of a ring in the interferometer, the at least one bidirectional optical component being disposed on the optical path of the ring interferometer, the splitting and recombining elements being disposed in such a way as to receive and to recombine spatially, temporally and coherently the first secondary output beam (H&#x2033;) and the second secondary output beam (H&#x2033;), so as to form a coherent output beam.

Device and passive method for the coherent combination of two amplified and/or spectrally broadened optical beams

A chirped pulse fiber amplifier with nonlinear compensation, includes elements for generating a light pulse having an initial peak-power Pand an initial duration T, a stretcher including at least one optical diffraction network having a line density higher than 1200 lines/mm and suitable for time-stretching the pulse and of inserting a time asymmetry in the stretched pulse, an amplifying fiber including a doped optical fiber section coupled with an optical pumping element and suitable for amplifying the stretched pulse for producing a pulse having a power, a compressor with optical diffraction grating suitable for time-compressing the amplified pulse so that the stretcher and the compressor are mismatched, the mismatch between the stretcher and the compressor being suitable for simultaneously compensating the second- and third-order nonlinear dispersions in the amplifying fiber during the propagation of a pulse having an initial power Pthrough the chirped pulse amplifier.

Fiber chirped pulse amplifier with nonlinear compensation

An ultra-short high-power light pulse source including a first laser pump source (), a mode-locked laser oscillator (), a second laser pump source (), a waveguide () capable of inserting spectral phases into the light pulses, and a compressor () capable of generating predetermined spectral phases into the light pulses. The waveguide () includes an element capable of compensating the predetermined spectral phases generated at least by the compressor (), the second laser pump source () being capable of delivering a second pump light flow () having a power Psuch that the spectral phases generated by the wave guide () are opposed or quasi opposed to the predetermined spectral phases generated by the compressor () in order to generate compressed ultra-short light pulses () at the output of the compressor () with a planar or quasi planar spectral phase.

Ultra-short high-power light pulse source

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Paris, France

Yoann Zaouter