Sub-10-dB Noise Figure in a Multiple-GHz Analog Optical Link

Sub-10-dB Noise Figure in a Multiple-GHz Analog Optical Link

We present the first microwave analog optical link to achieve a noise figure (NF) below 10 dB. A link gain of up to ~6dB and common-mode noise rejection achieved via a dual-output Mach-Zehnder intensity modulator and differential detection enable us to achieve link NFs as low as ~7.5 dB in the range...

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Veröffentlicht in:IEEE photonics technology letters 2007-04, Vol.19 (7), p.465-467
Hauptverfasser: McKinney, J.D., Godinez, M., Urick, V.J., Thaniyavarn, S., Charczenko, W., Williams, K.J.
Format: Artikel
Sprache:eng
Schlagworte:
Analog optical links
Gain
Intensity modulation
Laboratories
Links
Microwave photonics
Microwave technology
Microwaves
Modulators
Noise
Noise figure
noise figure (NF)
Noise levels
Noise measurement
Optical fiber communication
Optical losses
Photodiodes
Photonics
Radio frequency
Rejection
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Beschreibung
Zusammenfassung:We present the first microwave analog optical link to achieve a noise figure (NF) below 10 dB. A link gain of up to ~6dB and common-mode noise rejection achieved via a dual-output Mach-Zehnder intensity modulator and differential detection enable us to achieve link NFs as low as ~7.5 dB in the range of ~2-6.5 GHz
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2007.893023