Abstract
An analog radio-over-fiber photoreceiver based on a resonant narrowband transimpedance low noise amplifier (TILNA) is proposed and demonstrated for use in low-cost and low-power remote radio heads for distributed antenna systems in the unlicensed 60 GHz band. The amplifier is designed to present a conjugate matched impedance to a wirebonded photodiode where the input impedance has a real part of 10
$\mathrm{\Omega }$
while the output impedance is matched towards 50
$\Omega$
. Fabricated in a 55 nm SiGe BiCMOS technology, the TILNA features a three stage common emitter low noise amplifier with 17 dB of gain, a 3.4 dB noise figure, an output 1-dB compression point of 8 dBm and low power consumption of 33.6 mW while occupying only 0.25 mm2 of chip space including pads. The photoreceiver, formed by the TILNA and a wirebonded InP UTC photodiode, offers 29 dB higher gain than a 50
$\Omega$
terminated reference photodiode where 11 dB improvement is provided by resonant matching. Experimental results show that the proposed photoreceiver has achieved up to 20Gbps C-band transmission of complex modulated waveforms over 5km of standard single-mode fiber using 4 Gbaud QAM32 with an RMS EVM of 11.5%.
PDF Article
More Like This
Compact and wideband transmit opto-antenna for radio frequency over fiber
Olivier Caytan, Laurens Bogaert, Haolin Li, Joris Van Kerrebrouck, Sam Lemey, Sam Agneessens, Johan Bauwelinck, Piet Demeester, Guy Torfs, Dries Vande Ginste, and Hendrik Rogier
Opt. Express 27(6) 8395-8413 (2019)
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription