Robert C. Abrams, Richard White
Abstract
A three-frequency 10.6-μm heterodyne receiver was demonstrated experimentally. Narrow-band reception of a 40-MHz IF was realized without tracking of the carrier frequency by the local oscillator laser. A signal-to-noise ratio within 1 dB of the theoretical value was measured for large SNR.
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A three-frequency 10.6-μm heterodyne receiver was demonstrated experimentally. Narrow-band reception of a 40-MHz IF was realized without tracking of the carrier frequency by the local oscillator laser. A signal-to-noise ratio within 1 dB of the theoretical value was measured for large SNR.
Key concepts: Local oscillator, Heterodyne (poetry), Heterodyne detection, Optics, Superheterodyne receiver, Laser, Physics, Signal-to-noise ratio (imaging)