| Issue |
MATEC Web Conf.
Volume 185, 2018
2018 The 3rd International Conference on Precision Machinery and Manufacturing Technology (ICPMMT 2018)
|
|
|---|---|---|
| Article Number | 00015 | |
| Number of page(s) | 8 | |
| DOI | https://doi.org/10.1051/matecconf/201818500015 | |
| Published online | 31 July 2018 | |
Based on FP LDs with split band technique in two-channel fiber optical CATV transport system
1
Department of Electrical Engineering, Ming Chi University of Technology, Taipei, 24301 Taiwan
2
Institute of Electro-Optical Engineering, National Taipei University of Technology, New Taipei City, 10608 Taiwan
*
Corresponding author : wst@mail.mcut.edu.tw
This study proposes a two-channel fiber optic cable television (CATV) transport system based on Fabry–Perot laser diodes (FP-LDs) with a split band technique. To reduce the interference between channels, we apply the split band technique to two channels with different frequencies by using two converters at each moment. In this two-channel transmission scheme, composite second-order (CSO) and composite triple-beat (CTB) distortions induced by the systems are possibly confined in unused channels and result in good transmission performances. Through a 40 km standard single-mode fiber transmission, excellent performances of carrier-to-noise ratio (≥50 dB), CSO (≥70 dB), and CTB (≥72 dB) are obtained using the proposed fiber optic CATV transport systems. The proposed systems employing FP-LDs with a split band technique are also simpler and more cost effective than conventional externally modulated systems.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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