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We demonstrate the transmission of 51.56-Gb/s OOK signals over 15 km of SSMF using a 1.55-μm DML. A receiver-side duobinary filter is used together with FFE for the compensation of the bandwidth limitation and fiber dispersion.
A high-level optical access network based on coherent technology supporting ultra-dense Wavelength Division Multiplexing (WDM) is developed in the EU FP7 COCONUT project (COst-effective COherent ultra-dense-WDM-PON for lambda-To-the-user access networks). The COCONUT network should allow for seamless evolution from present PON architectures, and also support new emerging applications such as mobile...
We report a complete VCSEL optical link operating at 40-Gb/s (BER<10−12) with an eye opening of 0.56 UI and 6 dB of link margin. Transmitter pre-distortion enables substantial improvements in speed, jitter, and link margin.
Transmitter equalization enables dramatic improvements in total link performance: >; 6 dB in sensitivity, 3X in timing margin, and 2X in power efficiency at 15 Gb/s, and a record 5.7 pJ/bit at 20 Gb/s.
We investigate 10-Gb/s uncooled, directly modulated free-running 1.55-mum VCSEL transmission for WDM-PONs. Wavelength variation with bias current and dispersion tolerance are evaluated for WDM-PON transmission. Errorfree transmission over 10-km SMF and 80-km SMF+DCF have been demonstrated.
In conventional optical data transmission schemes, electrical filters and/or optical filters are used to improve the quality of system performance. In this paper, improved design of dense wavelength division multiplexing (DWDM) optical systems is achieved by using a selective electrical filter assignment method. The methodology objective is to optimize system design and mitigate the effects of fiber...
Optical communication systems based on dense wavelength division multiplexing (DWDM) would benefit from the ability to adjust the operating wavelength of a laser transmitter. Previous attempts, including thermal adjustment, etalon based wavelength locking, and various types of optical frequency and phase locked loops such as the Pound-Drever-Hall technique suffer from weaknesses including sensitivity...
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