Low-biased fiber-optic link for microwave downconversion

Low-biased fiber-optic link for microwave downconversion

Downconversion of microwave signals using fiber-optic links is investigated while low-biasing one modulator in a cascaded pair. Enhancement of the downconverted signal and variation of intermodulation distortion terms as a function of phase bias are studied theoretically and experimentally. Distorti...

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Veröffentlicht in:IEEE photonics technology letters 1996-12, Vol.8 (12), p.1692-1694
Hauptverfasser: Howerton, M.M., Moeller, R.P., Gopalakrishnan, G.K., Burns, W.K.
Format: Artikel
Sprache:eng
Schlagworte:
Frequency
High speed optical techniques
Optical distortion
Optical interferometry
Optical losses
Optical mixing
Optical modulation
Optical saturation
Photodetectors
Stimulated emission
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Beschreibung
Zusammenfassung:Downconversion of microwave signals using fiber-optic links is investigated while low-biasing one modulator in a cascaded pair. Enhancement of the downconverted signal and variation of intermodulation distortion terms as a function of phase bias are studied theoretically and experimentally. Distortion is significant at high local oscillator powers needed to minimize conversion loss.
ISSN:1041-1135
1941-0174
DOI:10.1109/68.544721