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Qclinewidthol

rahertz frequencies by heterodyning the free-running quantum cascade laser with two far-infrared gas lasersBeat notes are detected with a GaAs diode mixer and a microwave spectrum analyzer permitting very precisefrequency measurements and giving instantaneous linewidths of less than 30 kHz Characteristics are alsoreported for frequency tuning as the injection current is varied 2004 Optical Society

www-ece.rice.edu/~daniel/papers/QC...linewidthOL.pdf
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  • Created: Wed Feb 11 14:54:33 2004
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