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Using a \hbox {Si}_{3}\hbox {N}_{4} Ring Resonator Notch Filter for Optical Carrier Reduction and Modulation Depth Enhancement in Radio-Over-Fiber Links

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9 Author(s)
Perentos, A. ; Dept. of Electr. & Comput. Eng., Univ. of Cyprus, Nicosia, Cyprus ; Cuesta-Soto, F. ; Canciamilla, A. ; Vidal, B.
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Optical carrier reduction via the use of a Si3N4 ring resonator notch filter (RRNF) is proposed and experimentally demonstrated as a means for improving the modulation efficiency in 10-GHz radio-over-fiber (RoF) links. The realized filter is characterized in both the optical and microwave domains and is then exploited in an RoF test bed. Experimental results show a modulation depth improvement of up to 9 dB.

Published in:

Photonics Journal, IEEE  (Volume:5 ,  Issue: 1 )