WDM Orthogonal Subcarrier Multiplexing Based on Mode-Locked Lasers
| Autor: | Francois Lelarge, V. Panapakkam, Abderrahim Ramdane, Kamel Merghem, Fernando A. Gutierrez, Quentin Gaimard, Andrew D. Ellis, Liam P. Barry, Philip Perry, Eamonn P. Martin, Aravind P. Anthur |
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| Rok vydání: | 2017 |
| Předmět: |
Engineering
Relative intensity noise business.industry Subcarrier multiplexing 02 engineering and technology Multiplexing Atomic and Molecular Physics and Optics 020210 optoelectronics & photonics Transmission (telecommunications) Modulation Wavelength-division multiplexing Broadband 0202 electrical engineering electronic engineering information engineering Baseband Electronic engineering business |
| Zdroj: | Journal of Lightwave Technology. 35:2981-2987 |
| ISSN: | 1558-2213 0733-8724 |
| Popis: | The (de)modulation of broadband orthogonal subchannels relying on all-analogue signal processing potentially achieves high-capacity orthogonal subcarrier multiplexing (OSCM) electro-optical transceivers with low power consumption and latency. Overall transmission rates can be multiplied by employing wavelength division multiplexing (WDM) technology. Mode-locked lasers (MLL) are relevant optical frequency combs, as they produce a high number of comb tones while presenting a small footprint and low power consumption. Unlike baseband transmission, the use of high-frequency subchannels in OSCM systems overcomes the high relative intensity noise that MLL comb tones present at low frequencies. This paper reports a direct-detection real-time all-analogue WDM/OSCM experiment that emulates a 432 Gbit/s (20 × 21.6 Gbit/s) electro-optical transceiver. The 20 optical carriers were generated by a state-of-the-art quantum-dash MLL. The net data rate after considering forward error correction overheads is still higher than 400 Gbit/s. This is the highest capacity achieved in real-time broadband all-analogue WDM/OSCM links to date. |
| Databáze: | OpenAIRE |
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