4.8 Gbit/s 16-QAM-OFDM transmission based on compact 450-nm laser for underwater wireless optical communication
Journal
Optics Express
Journal Volume
23
Journal Issue
18
Pages
23302-23309
Date Issued
2015
Author(s)
Oubei, H.M.
Duran, J.R.
Janjua, B.
Wang, H.-Y.
Tsai, C.-T.
Chi, Y.-C.
Ng, T.K.
Kuo, H.-C.
He, J.-H.
Alouini, M.-S.
Lin, G.-R.
Ooi, B.S.
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.
Type
journal article