Abstract
We report the first demonstration of a uni-traveling carrier photodiode (UTC-PD) used as a 5 Gbps wireless receiver. In this experiment, a 35.1 GHz carrier was electrically modulated with 5 Gbps non-return with zero on-off keying (NRZ-OOK) data and transmitted wirelessly over a distance of 1.3 m. At the receiver, a UTC-PD was used as an optically pumped mixer (OPM) to down-convert the received radio frequency (RF) signal to an intermediate frequency (IF) of 11.7 GHz, before it was down-converted to the baseband using an electronic mixer. The recovered data show a clear eye diagram, and a bit error rate (BER) of less than 10-8 was measured. The conversion loss of the UTC-PD optoelectronic mixer has been measured at 22 dB. The frequency of the local oscillator (LO) used for the UTC-PD is defined by the frequency spacing between the two optical tones, which can be broadly tuneable offering the frequency agility of this photodiode-based receiver.
Highlights
As the highest demand for mobile services comes from indoor wireless networks [1], millimeter waves provide an attractive solution in indoor wireless access networks because of the large spectrum availability in the mm-wave range (30 GHz – 300 GHz) [2], which allows for high speed wireless communications even at low spectral efficiency
We report the first demonstration of a uni-traveling carrier photodiode (UTC-PD) used as a 5 Gbps wireless receiver
Funding FiWiN5G Marie Sklodowska-Curie European Union’s Horizon 2020 Research and Innovation Programme (642355); Engineering and Physical Sciences Research Council (EP/J017671/1)
Summary
As the highest demand for mobile services comes from indoor wireless networks [1], millimeter waves (mm-waves) provide an attractive solution in indoor wireless access networks because of the large spectrum availability in the mm-wave range (30 GHz – 300 GHz) [2], which allows for high speed wireless communications even at low spectral efficiency.
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