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Use of the sidebands of a mach-zehnder modulator for a FMCW distance measurement
Use of the sidebands of a mach-zehnder modulator for a FMCW distance measurement
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机译:使用Mach-Zehnder调制器的边带进行FMCW距离测量
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摘要
A distance measuring method and device, wherein a first and a second laser radiation are generated so that the first laser radiation has a first frequency modulation and the second laser radiation has a second frequency modulation, wherein at least in sections a time derivative of the first frequency modulation is different from a time derivative of the second frequency modulation. In accordance with the invention the first and the second laser radiation are generated by modulating a base radiation by means of an electro-optical modulator, so that an output radiation comprising a carrier component and a plurality of sideband components is produced, wherein a first sideband component provides the first laser radiation and a second sideband component provides the second laser radiation.
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