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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Ennser, K. Zannin, M. Taccheo, S. |
| Copyright Year | 2009 |
| Description | Author affiliation: Institute of Advanced Telecommunications, Swansea University, SA2 8PP, UK (Ennser, K.; Zannin, M.; Taccheo, S.) |
| Abstract | In this paper, the research progress on increasing the reach of passive optical networks (PONs) by means of optical amplification is reported. The work is focused on next generation PON operating at 10 Gb/s with long reach up to 100 km and high split. The studied amplifier is the Erbium-doped amplifier operating in the C-band. It is a mature technology largely used in the metro and long-haul network due to its relative flat and broad gain. In order to handle the bursty upstream traffic and overcome the different signal power level due to different distance between several optical network units (ONUs) to optical line terminal (OLT), a gain clamping technique to stabilise the amplifier is investigated. A dual-stage amplifier is used to obtain high gain at large input power excursion. The optically clamped amplifier provides gain over 22 dB up to a total input power of −3 dBm. The gain excursion is less than 1.6 dB for a large input power variation. Overall the experimental results show that the optical feedback loop is a simple and cost effective technique to guarantee amplifier robustness for typical upstream PON traffic. |
| Starting Page | 1 |
| Ending Page | 4 |
| File Size | 229829 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781424448258 |
| e-ISBN | 9781424448272 |
| DOI | 10.1109/ICTON.2009.5185147 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-06-28 |
| Publisher Place | Portugal |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Passive optical networks Stimulated emission Optical amplifiers Optical network units Optical feedback Semiconductor optical amplifiers Erbium-doped fiber amplifier Power amplifiers Telecommunication traffic Optical fiber networks gain control technique access network passive optical network (PON) optical amplifier Erbium-doped amplifier |
| Content Type | Text |
| Resource Type | Article |
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