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LASER ASSEMBLY AND A METHOD FOR OPTICAL AMPLIFICATION OF ULTRASHORT LASER PULSES
LASER ASSEMBLY AND A METHOD FOR OPTICAL AMPLIFICATION OF ULTRASHORT LASER PULSES
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机译：激光组件和超短脉冲激光光学放大的方法
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摘要
a laseranordnung are described and a procedure for optical amplification ultrakurzer pulses with a wavelength range of 1.5 microns in wellenlu00e4ngenanteil until 2.1 micrometer and temporal pulsdauern in piko or femtosekundenbereich.the device comprises at least the following components: an optical unit for the production of seed pulses (sl) with temporal pulsdauern in piko or femtosekundenbereich and wenigsfrom a spectral wellenlu00e4ngenanteil with a spectral bandwidth of at least 100 nm within a wellenlu00e4ngenspektrums between 1.5 microns to 2.1 microns, an optical volume bragg grating.in vbg1 that has been trained and the optical unit directly or indirectly in the beam to the seed laser pulses by,in the vbg1 reflected pulses compared to the seed intensity laser pulses on their temporal pulse length stretched and their spectral bandwidth are reducedthe vbg1 directly or indirectly lower fiber based optical amplifier arrangement along at least part of the reflected pulses are amplifiedto obtain increased pulses, and a further optical volume bragg grating, a vbg2,so the optical amplifier arrangement and training directly or indirectly by that the vbg2 reflected.enhanced pulses compared to the increased laserimpulsen on their temporal pulse length are compressed.;the lu00f6sungsgemu00e4u00dfe device is characterized by the fact that an optical dispersionsausgleichseinheit (9) is provided in the at least one of the faserbasierten,optical amplifier arrangement (2) opposite dispersion has inherent dispersion and a for the wavelengths of 1.5 - 2.smooth transparent, einstu00fcckigen semiconductor material isand that the dispersionsausgleichseinheit (9) along the light path of the reflected pulses (rl) of the optical amplifier arrangement (2) or the optical amplifier arrangement (2) alongthe light path of the enhanced pulses (vl) or reflected, enhanced by laser (rvl) subordinate, is arranged.
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