Abstract
We propose and experimentally investigate a scheme for transmitting a phase-modulated radio-over-fiber (RoF) signal along an existing fiber infrastructure without degradation of the existing baseband signal. Optical phase encoding of both signals, namely a baseband 21.4-Gb/s nonreturn-to-zero differential quaternary phase-shift keyed signal and a 5.25-GHz RoF carrying 1.25 Gb/s, enables the use of identical optical receiver structures. The experimental results show that both receivers achieve error-free operation after 80-km standard single-mode fiber transmission. The proposed scheme has potential applications for converged wireless and wireline optical access networks.
Original language | English |
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Journal | I E E E Photonics Technology Letters |
Volume | 20 |
Issue number | 21 |
Pages (from-to) | 1814-1816 |
ISSN | 1041-1135 |
DOIs | |
Publication status | Published - 2008 |
Bibliographical note
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- radio-over-fiber (RoF)
- Digital signal processing (DSP)
- phase modulation
- optical wireless access network