VCSEL-based differential modulation technique for high-speed gigabit passive optical networks
| Autor: | S. Wassin, G. M. Isoe, Andrew W. R. Leitch, E.K. Rotich Kipnoo, Tim Gibbon |
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| Rok vydání: | 2018 |
| Předmět: |
Physics
Extinction ratio business.industry On-off keying Single-mode optical fiber 01 natural sciences Passive optical network Atomic and Molecular Physics and Optics Vertical-cavity surface-emitting laser 010309 optics Transmission (telecommunications) Modulation Gigabit 0103 physical sciences Optoelectronics 010306 general physics business |
| Zdroj: | Journal of Modern Optics. 66:419-423 |
| ISSN: | 1362-3044 0950-0340 |
| DOI: | 10.1080/09500340.2018.1535672 |
| Popis: | With the convergence towards 5G, optical networks need to be upgraded to support the emerging data tsunami. This work experimentally demonstrates the first real-time transmission of 20 Gbps over a class 10G 1550 nm vertical cavity surface emitting laser (VCSEL) in the context of on-off-keying (OOK) modulation format, by employing VCSEL differential drive mode technique, for adoption in high-speed gigabit passive optical networks (GPONs). Two OOK data streams each with 10 Gbps are differentially modulated onto a single VCSEL, therefore generating an aggregated data rate of 20 Gbps OOK signal. A receiver sensitivity of -13.36 dBm is experimentally achieved. Through extinction ratio optimization, an error free transmission over 24.7 km single mode fibre is attained, with a transmission penalty of 1.91 dB. Our proposed technique alleviates band-limitation of the VCSEL carrier, and doubles the channel data rate without replacing the transmitter optics. |
| Databáze: | OpenAIRE |
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