Journal article
Multiband Carrierless Amplitude Phase Modulation for High Capacity Optical Data Links
Short range optical data links are experiencing bandwidth limitations making it very challenging to cope with the growing data transmission capacity demands. Parallel optics appears as a valid short-term solution. It is, however, not a viable solution in the long-term because of its complex optical packaging.
Therefore, increasing effort is now put into the possibility of exploiting higher order modulation formats with increased spectral efficiency and reduced optical transceiver complexity. As these type of links are based on intensity modulation and direct detection, modulation formats relying on optical coherent detection can not be straight forwardly employed.
As an alternative and more viable solution, this paper proposes the use of carrierless amplitude phase (CAP) in a novel multiband approach (MultiCAP) that achieves record spectral efficiency, increases tolerance towards dispersion and bandwidth limitations and reduces the complexity of the transceiver.
We report on numerical simulations and experimental demonstrations with capacity beyond 100 Gb/s transmission using a single externally modulated laser (EML). In addition, an extensive comparison with conventional CAP is also provided. The reported experiment uses MultiCAP to achieve 102.4 Gb/s transmission, corresponding to a data payload of 95.2 Gb/s error free transmission by using a 7% forward error correction (FEC) code.
The signal is successfully recovered after 15 km of standard single mode fiber (SSMF) in a system limited by a 3 dB bandwidth of 14 GHz.
Language: | English |
---|---|
Publisher: | IEEE |
Year: | 2014 |
Pages: | 798-804 |
ISSN: | 15582213 and 07338724 |
Types: | Journal article |
DOI: | 10.1109/JLT.2013.2284926 |
ORCIDs: | Tafur Monroy, Idelfonso |
Fiber optics communication Multiband carrierless amplitude phase modulation (MultiCAP) Short range communications
Bandwidth Bit error rate Optical fiber communication Optical filters Optical modulation Optical transmitters Quadrature amplitude modulation amplitude modulation bandwidth 14 GHz bit rate 102.4 Gbit/s bit rate 95.2 Gbit/s complex optical packaging direct detection forward error correction forward error correction code high capacity optical data links intensity modulation multiCAP multiband carrierless amplitude phase modulation multiband carrierless amplitude phase modulation (MultiCAP) optical coherent detection optical links optical transceiver complexity optical transceivers parallel optics short range communications short range optical data links single externally modulated laser