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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Islam, A. H. M. R. Bakaul, M. Nirmalathas, A. |
| Copyright Year | 2009 |
| Abstract | Multilevel M-ary amplitude-shift-key (M-ASK) intensity modulation formats have been proposed and experimentally demonstrated in millimeter-wave radio-over-fiber (mm-wave RoF) system. In order to demonstrate multilevel intensity modulation for spectrally efficient implementation, return-to-zero (RZ) and non-RZ (NRZ) implementations for both 4-ASK and 8-ASK modulation formats are utilized in full-duplex RoF link. Hence, for downlink, two different signal generation schemes are utilized in this paper for optical mm-wave generation and transport using optical heterodyning of two unlocked lasers. For uplink, similar RF self-homodyning technique is applied at the base station (BS) to simplify the signal translation process. Theoretical analyses and experimental results using the proposed technique for M-ASK modulation formats confirm the system's performance. Apart from the bandwidth-efficient realization of the proposed schemes, demonstrated full-duplex RoF techniques avoid most of the high-speed electrooptic and RF devices from both the central station (CS) and BSs keeping the optical mm-wave generation, optical transport, and BSs simpler in both directions. |
| Starting Page | 1956 |
| Ending Page | 1972 |
| Page Count | 17 |
| File Size | 2031451 |
| File Format | |
| ISSN | 19430655 |
| Volume Number | 4 |
| Issue Number | 5 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2012-10-01 |
| Publisher Place | U.S.A. |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Frequency modulation Downlink Optical fibers Microwave photonics Optical mixing microwave photonics Fiber optics systems heterodyning homodyning multilevel modulation radio over fiber (RoF) |
| Content Type | Text |
| Resource Type | Article |
| Subject | Atomic and Molecular Physics, and Optics Electrical and Electronic Engineering |
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