摘要
This investigation demonstrates the generation of OFDM-RoF signal using frequency doubling technique for the first time, to the author's best knowledge. The 4-Gb/s OFDM signal using 16-QAM format modulated on each subcarrier at a center frequency of 19GHz is experimentally demonstrated. Benchmarked against the OOK format, the 16-QAM OFDM format has the higher spectral efficiency with a sensitivity penalty of less than 2.6 dB. After transmission over 50-km single mode fiber, the power penalties of RF OOK and OFDM signals are less than 0.5dB.
原文 | English |
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頁(從 - 到) | 6056-6063 |
頁數 | 8 |
期刊 | Optics Express |
卷 | 16 |
發行號 | 9 |
DOIs | |
出版狀態 | Published - 28 4月 2008 |