40 Gb/s on–off keying downstream and 10 Gb/s on–off keying remodulated upstream signals in long-reach access network with multivideo services

Abstract

In this demonstration, we propose and investigate a long reach passive optical network (PON) using four wavelength-multiplexed sig- nals with both on-off keying modulations for 40 Gb/s downlink traffic in 100 km fiber transmission without dispersion compensation. In the ex- change node, we can use four channels with video services broadcasting to each optical network unit (ONU) for the uplink signal remodulation. Hence, four wavelength-multiplexed video signals also can be used to inject into the corresponding reflective semiconductor optical amplifiers in each ONU for uplink signal remodulation to achieve a 4 × 2.5 Gb/s data rate. In addition, under the 32 split ratio PON system, the power penalties of nearly 6.7 and 1 dB could be measured at the bit error rate of 10 − 9 for the downlink and uplink traffic, respectively. C 2011 Society of Photo-Optical