Journal article
Ultra-broadband Photonic Harmonic Mixer Based on Optical Comb Generation
We propose a novel photonic harmonic mixer operating at frequencies up to the millimeter-wave (MMW) band. By combining a broadband fiber-wireless signal with highorder harmonics of a fundamental local oscillator in an optical frequency comb generator, frequency down-conversion can be implemented without using costly ultra-broadband photodiode.
It is theoretically shown that the down-conversion efficiency and the bandwidth of the mixer is highly dependent on the optical modulation indices and the fundamental frequency of comb lines. Down-conversion of a W-band (75-110GHz) fiberwireless signal is experimentally demonstrated. Moreover, the error vector magnitude (EVM) performance of a multi-gigabit quadrature phase shift keying (QPSK) signal at 62.5, 82.5 and 102.5GHz carrier frequencies is studied to evaluate the downconversion efficiency.
The proposed photonic harmonic mixer can be a candidate for applications in high capacity fiber-wireless communication systems.
| Language: | English |
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| Publisher: | IEEE |
| Year: | 2012 |
| Pages: | 16-18 |
| ISSN: | 19410174 and 10411135 |
| Types: | Journal article |
| DOI: | 10.1109/LPT.2011.2171939 |
| ORCIDs: | Tafur Monroy, Idelfonso |
Harmonic analysis Mixers Optical fibers Optical mixing Optical modulation Photonics broadband fiber wireless signal carrier frequencies downconversion efficiency error vector magnitude frequency downconversion fundamental local oscillator harmonic mixer high capacity fiber wireless communication high order harmonics microwave photonics millimeter wave band multigigabit quadrature phase shift keying optical comb generation optical frequency comb generator optical harmonic generation phase shift keying photodiodes radio-over-fiber systems radio-over-fibre ultrabroadband photodiode ultrabroadband photonic harmonic mixer
