Progress towards an ultracompact cw terahertz spectrometer
2010
A cw terahertz spectrometer operating without optical amplifiers and without mechanical delay line is presented. Fiber-coupled 1.5 µm DFB lasers in a “butterfly” housing drive a photodiode emitter, which provides 5 µW output at 0.5 THz. A coherent photoconductive receiver yields an SNR up to 75 dB.
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