2.3 Gbit/s underwater wireless optical communications using directly modulated 520 nm laser diode
KAUST DepartmentPhotonics Laboratory
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Communication Theory Lab
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AbstractWe experimentally demonstrate a record high-speed underwater wireless optical communication (UWOC) over 7 m distance using on-off keying non-return-to-zero (OOK-NRZ) modulation scheme. The communication link uses a commercial TO-9 packaged pigtailed 520 nm laser diode (LD) with 1.2 GHz bandwidth as the optical transmitter and an avalanche photodiode (APD) module as the receiver. At 2.3 Gbit/s transmission, the measured bit error rate of the received data is 2.23×10−4, well below the forward error correction (FEC) threshold of 2×10−3 required for error-free operation. The high bandwidth of the LD coupled with high sensitivity APD and optimized operating conditions is the key enabling factor in obtaining high bit rate transmission in our proposed system. To the best of our knowledge, this result presents the highest data rate ever achieved in UWOC systems thus far.
Citation2.3 Gbit/s underwater wireless optical communications using directly modulated 520 nm laser diode 2015, 23 (16):20743 Optics Express
SponsorsThis work is supported by KAUST baseline funding; KAUST Competitive Center Funding (Red Sea Research Center), and KACST TIC (Technology Innovation Center) for Solid State Lighting at KAUST.
PublisherThe Optical Society