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We mathematically analyze and experimentally investigate the characteristics of subcarrier-modulated (SCM) light. Our investigation shows that the baseband data are also carried on the optical carrier after subcarrier modulation. This residual data introduce crosstalk when the optical carrier is separated from subcarriers and reused for uplink data modulation. The influence of the residual data carried...
We experimentally investigate the transmission performance of a carrier-reuse WDM passive optical network, where downstream data is modulated on the optical subcarrier. Two different optical network unit (ONU) structures based on injection locked and directly modulated FP-LDs are studied. The results show that the effect of the residual data carried on the reused optical carrier can be suppressed...
This paper examines the optimum optical and electrical filter bandwidths of the optical MSK receiver. Results show that the MSK signal with low OSNR exhibits narrower optimal optical filter bandwidth compared with RZ-DPSK and RZ-OOK.
We propose and demonstrate a novel protection scheme for WDM passive optical networks based on sub-ring architecture. Experiment of 10 Gb/s downstream and 1.25 Gb/s upstream transmissions was carried out to verify the proposed protection scheme.
Techniques for generation and detection of optical minimum-shift keying signals are presented. The property of optical MSK and expected performance in high speed optical transmission system are discussed.
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