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We propose and experimentally demonstrate a frame-level OEO-regeneration technique for GPON reach extension which overcomes the limitations of bit-level OEO-regeneration with respect to upstream efficiency and transparency.
We present experiments on bidirectional transmission with 2.5 Gb/s for downstream and upstream data rates over 10 km transmission distance to complete a WDM PON by SOA for ONU and realize the downstream optical signal is reused for upstream transmission. The results show that OAN and ONW is extincted and the extinction ratio (ER) is reduced to 0 db when the output optical of SOA pass through Scheme...
Spectral hole burning in EDFA depends on channel loading condition. The most problematic channel load cases are identified in simulations of gain controlled EDFA. Simple way to predict channel gain deviation is suggested.
Detailed numerical investigations of the transmission performance of adaptively modulated optical orthogonal frequency division multiplexed (AMOOFDM) signals are undertaken, for the first time, in optical amplification- and chromatic dispersion compensation-free SMF IMDD systems using semiconductor optical amplifiers (SOAs) as intensity modulators. A theoretical model describing the characteristics...
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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