Spectrally tailored pulsed fiber laser oscillator

H - Electricity – 01 – S

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H01S 3/10 (2006.01) H01S 3/067 (2006.01)

Patent

CA 2743648

High power optical pulses generating methods and laser oscillators are provided. A light generating module gener-ates seed optical pulses having predetermined optical characteristics. A spectrum tailoring module is then used to tailor the spec-tral profile of the optical pulses. The spectral tailoring module includes a phase modulator which imposes a time-dependent phase variation on the optical pulses. The activation of the phase modulator is synchronized with the passage of the optical pulse therethough, thereby efficiently reducing the RF power necessary to operate the device.

L'invention porte sur des procédés de génération d'impulsions optiques haute puissance et sur des oscillateurs lasers. Un module de génération de lumière génère des impulsions optiques d'amorçage ayant des caractéristiques optiques prédéterminées. Un module de sélection spectrale est ensuite utilisé pour sélectionner le profil spectral des impulsions optiques. Le module de sélection spectrale comprend un modulateur de phase qui impose une variation de phase dépendant du temps sur les impulsions optiques. L'activation du modulateur de phase est synchronisée avec le passage de l'impulsion optique à travers celui-ci, réduisant ainsi efficacement l'énergie RF nécessaire pour faire fonctionner le dispositif.

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