Abstract
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.
Original language | English |
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Journal | I E E E Photonics Technology Letters |
Volume | 24 |
Issue number | 1 |
Pages (from-to) | 16-18 |
ISSN | 1041-1135 |
DOIs | |
Publication status | Published - 2012 |
Keywords
- Harmonic mixer
- Fiber wireless communication
- Microwave photonics
- Radio-over-Fiber systems