Nature Photonics features "Optical communications: Underwater link"
Congratulation to Hassan Oubei on his recent paper being highlighted in Nature Photonics:
NATURE PHOTONICS | RESEARCH HIGHLIGHTS
OPTICAL COMMUNICATIONS
Underwater link
Nature Photonics 9, 707 (2015) doi:10.1038/nphoton.2015.218
Published online 29 October 2015
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Abstract: We experimentally demonstrate an underwater wireless optical communications (UWOC) employing 450-nm TO-9 packaged and fiber-pigtailed laser diode (LD) directly encoded with an orthogonal frequency division multiplexed quadrature amplitude modulation (QAM-OFDM) data. A record data rate of up to 4.8 Gbit/s over 5.4-m transmission distance is achieved. By encoding the full 1.2-GHz bandwidth of the 450-nm LD with a 16-QAM-OFDM data, an error vector magnitude (EVM) of 16.5%, a signal-to-noise ratio (SNR) of 15.63 dB and a bit error rate (BER) of 2.6 × 10-3, well pass the forward error correction (FEC) criterion, were obtained.
