Katsushi Iwashita
Abstract
A new optical FSK heterodyne detection scheme is proposed and demonstrated. This scheme uses an optical image rejection mixer. The intermediate frequency bandwidth is the same as ASK heterodyne detection while equalling dual filter FSK detection receiver sensitivity.
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A new optical FSK heterodyne detection scheme is proposed and demonstrated. This scheme uses an optical image rejection mixer. The intermediate frequency bandwidth is the same as ASK heterodyne detection while equalling dual filter FSK detection receiver sensitivity.
Key concepts: Frequency-shift keying, Heterodyne detection, Image response, Heterodyne (poetry), Bandwidth (computing), Sensitivity (control systems), Intermediate frequency, Optical filter