Bit-and power-loading-A comparative study on maximizing the capacity of RSOA based colorless DMT transmitters
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Date
2017-10
Publication Type
Journal Article
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Abstract
We present a comparative study of the capacity increase brought by bit- and power-loading discrete multi-tone (DMT) modulation for low-cost colorless transmitters. Three interesting reflective semiconductor optical amplifier (RSOA) based colorless transmitter configurations are compared: First, an amplified spontaneous emission (ASE) spectrum-sliced source; second, a self-seeded RSOA fiber cavity laser (FCL) and third, an externally seeded RSOA. With bit- and power-loaded DMT, we report record high line rates of 6.25, 20.1 and 30.7 Gbit/s and line rates of 4.17, 10.1 and 24.5 Gbit/s in a back-to-back and in a 25 km nonzero dispersion shifted fiber (NZDSF) transmission experiments for the three transmitter configurations, respectively. In all the experiments, BER (bit error ratios) below an FEC (forward error correction) limit of 7.5 × 10−3 were achieved.
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published
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Journal / series
Volume
7 (10)
Pages / Article No.
999
Publisher
MDPI
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Subject
Bit- and power-loading; Colorless transmitter; Discrete multi-tone (DMT); Reflective Semiconductor Optical Amplifier (RSOA); WDM-PON
Organisational unit
03974 - Leuthold, Juerg / Leuthold, Juerg