This paper describes the simulation approach of the improvement of dispersion tolerance for an electrical-binary-signalbased duobinary transmitter. We can transmit the duobinary signals over 200 km of singe-mode fiber by optimizing the relative time delay and the driving voltage.
We present a low-cost WDM-PON employing colorless uncooled RSOA-based
spectrum sliced sources. Colorless operations over 32 WDM channels are demonstrated from 0 to 60 <sup>o</sup>C in 155-Mb/s transmissions over 25 km.
This paper presents several ways to implement cost-effective optical duobinary transmitters using low-cost optical modulators. We show that, compared to the conventional scheme, the proposed schemes can be used to implement cost-effective duobinary transmission systems without a significant sacrifice of system performance.
An optical amplifier for metro WDM networks, based on a gain-clamped semiconductor optical amplifier is proposed. The amplifier (RAGCSOA) consists of a low gain Raman fiber amplifier and a gain-clamped semiconductor optical amplifier. The RAGCSOA has over 20 dB gain and a noise figure below 3 dB. In addition, the potentially compact amplifier shows negligible transients under dynamic add-drops. Sixteen channels of 10 Gb/s signals were successfully transmitted over five NZDSF spans of 80 km using RAGCSOAs. RAGCSOAs were also used to successfully transmit sixteen channels of 10 Gb/s WDM signals over four 40km spans of SMF with add-drops. No penalty was observed when 15 out of 16 channels were dynamically add/dropped in all the transmission systems. The RAGCSOA can be very compact when a GCSOA chip and a Raman pump LD chip are packaged in a module.
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Network Architecture, Management, and Applications IV