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Heterodyne photomixer spectrometer with receiver photomixer driven at different frequency than source photomixer
Heterodyne photomixer spectrometer with receiver photomixer driven at different frequency than source photomixer
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机译:具有接收器光混合器的外差式光混合器光谱仪,其驱动频率与源光混合器不同
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摘要
A heterodyne photomixer spectrometer comprises a receiver photomixer that is driven at a different frequency than the source photomixer, thereby maintaining the coherent nature of the detection, eliminating etalon effects, and providing not only the amplitude but also the phase of the received signal. The heterodyne technique can be applied where the source and receiver elements are components of a waveguide thereby forming an on-chip heterodyne spectrometer.
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