CATV, LTE and data convergence test in optical access networks

An optical access network with LTE, optical data, and CATV signals is experimentally studied. Rx sensitivities of −27.5 dBm, −26 dBm, and −24 dBm were obtained at bitrates of 1.25 Gb/s, 2.5 Gb/s, and 10 Gb/s at BER=10 −4 ; whereas Rx optical power of −27 dBm is needed at an EVM of 28.2% for LTE. The minimum spectral separation is also measured showing the effect of the high power CATV on the other two signals.