Abstract
A broadband millimeter-wave (mmW) at 60-GHz band and an impulse radio
ultra-wideband (IR-UWB) over a colorless 100-GHz dense wavelength division
multiplexing (DWDM) passive optical network (PON) that supports simultaneous
transmission of a broadband mmW signal, a UWB signal and a wireline baseband
signal is experimentally demonstrated. At the transmitter, a polarization
modulator (PolM) is employed, which operates in conjunction with a polarization
controller (PC) and a polarization beam splitter (PBS) as an equivalent Mach-Zehnder
modulator (MZM). For 60-GHz and IR-UWB signal transmission, the equivalent
MZM is biased at the minimum transmission point to generate two sidebands
that are separated at a frequency in the 60-GHz band, and the wireless signals
(60 GHz and IR-UWB) are carried by the two sidebands. For the wireline baseband
transmission, the equivalent MZM is biased at the maximum transmission point
to generate only the optical carrier, and the wireline signal is carried by
the optical carrier. The wireline signal and the wireless signals are orthogonally
polarized and sent over a single-mode fiber (SMF) to a base station (BS).
For each WDM channel in the central station (CS) and the BS, since no optical
filters are employed, colorless operation is supported. Point-to-point error-free
transmission of a 1.25-Gbps mmW signal, a 1.25-Gbps IR-UWB signal and a 10-Gbps
wireline signal over a 25-km SMF is experimentally demonstrated. The number
of users that can be supported by the proposed colorless WDM-PON is estimated
based on the measured receiver sensitivities.
© 2013 IEEE
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