Single grating laser pulse stretcher and compressor

H - Electricity – 01 – S

Patent

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Details

H01S 3/10 (2006.01) G02B 27/09 (2006.01) G02B 27/44 (2006.01) H01S 3/00 (2006.01)

Patent

CA 2179268

A single-grating method and apparatus is described for a laser pulse stretcher and compressor (30). The method and apparatus exploit a two-layer vertical structure: one layer for the stretcher section (elements 32, 34, 36, and 38) and one layer for the compressor section (elements 32, 40a, and 40b). This allows additional components to be disposed between the respective stretcher and compressor sections. Applications are described for chirped-pulse and regenerative amplifiers, where tuning is desired. When a change in the input wavelength is applied, only one rotational adjustment is required to resume the alignment of the whole stretcher and compressor.

On décrit un procédé et un appareil à réseau unique pour un dispositif d'expansion et de compression d'impulsions laser (30). Le procédé et l'appareil font appel à une structure verticale à deux couches: une couche pour la section d'expansion (éléments 32, 34, 36 et 38) et une couche pour la section compression (élément 32, 40a, 40b). Ceci permet de disposer des composants additionnels entre les sections respectives d'expansion et de compression. On décrit des applications du dispositif dans les amplificateurs à impulsions modulées en fréquence et à réaction, lorsqu'on souhaite obtenir une syntonisation. Lorsqu'on effectue un changement de la longueur d'onde d'entrée, il suffit d'un seul ajustage en rotation pour revenir à un alignement de tout le dispositif d'expansion et de compression.

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