SYSTEM FOR GENERATING SHORT OPTICAL PULSES OF A DURATION SHORTER THAN THE PERIOD OF THE OPTICAL CARRIER USING THE PRINCIPLE OF PARAMETRIC AMPLIFICATION
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SYSTEM FOR GENERATING SHORT OPTICAL PULSES OF A DURATION SHORTER THAN THE PERIOD OF THE OPTICAL CARRIER USING THE PRINCIPLE OF PARAMETRIC AMPLIFICATION
SYSTEM FOR GENERATING SHORT OPTICAL PULSES OF A DURATION SHORTER THAN THE PERIOD OF THE OPTICAL CARRIER USING THE PRINCIPLE OF PARAMETRIC AMPLIFICATION
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机译:使用参数放大原理产生比光学载体周期短的持续时间短的光学脉冲的系统
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摘要
Generator of short optical pulses includes:a generator of optical pulses with a wavelength equal to λ/2 and a spectral width less than λ/3;a generator of optical pulses of a duration less than 10 picoseconds at a wavelength λ/3;a device for recombining the pulses from the generators;a parametric amplification device receiving the output of the recombination device as input;a filter extracting, from the output of the amplification device, a band centred about a wavelength λ;a second harmonic generator receiving the output of the filter and generating a band centred over a wavelength λ/2;a programmable device making it possible to temporally adjust the pulses corresponding to the bands, in order to allow for the generation of a pulse with a wavelength equal to λ/3 and of a duration less than the period of the optical cycle.展开▼