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dc.contributor.authorChi, Yu-Chiehen_US
dc.contributor.authorHsieh, Dan-Huaen_US
dc.contributor.authorTsai, Cheng-Tingen_US
dc.contributor.authorChen, Hsiang-Yuen_US
dc.contributor.authorKuo, Hao-Chungen_US
dc.contributor.authorLin, Gong-Ruen_US
dc.date.accessioned2019-04-03T06:38:32Z-
dc.date.available2019-04-03T06:38:32Z-
dc.date.issued2015-05-18en_US
dc.identifier.issn1094-4087en_US
dc.identifier.urihttp://dx.doi.org/10.1364/OE.23.013051en_US
dc.identifier.urihttp://hdl.handle.net/11536/124806-
dc.description.abstractA TO-38-can packaged Gallium nitride (GaN) blue laser diode (LD) based free-space visible light communication (VLC) with 64-quadrature amplitude modulation (QAM) and 32-subcarrier orthogonal frequency division multiplexing (OFDM) transmission at 9 Gbps is preliminarily demonstrated over a 5-m free-space link. The 3-dB analog modulation bandwidth of the TO-38-can packaged GaN blue LD biased at 65 mA and controlled at 25 degrees C is only 900 MHz, which can be extended to 1.5 GHz for OFDM encoding after throughput intensity optimization. When delivering the 4-Gbps 16-QAM OFDM data within 1-GHz bandwidth, the error vector magnitude (EVM), signal-to-noise ratio (SNR) and bit-error-rate (BER) of the received data are observed as 8.4%, 22.4 dB and 3.5 x 10(-8), respectively. By increasing the encoded bandwidth to 1.5 GHz, the TO-38-can packaged GaN blue LD enlarges its transmission capacity to 6 Gbps but degrades its transmitted BER to 1.7 x 10(-3). The same transmission capacity of 6 Gbps can also be achieved with a BER of 1 x 10(-6) by encoding 64-QAM OFDM data within 1-GHz bandwidth. Using the 1.5-GHz full bandwidth of the TO-38-can packaged GaN blue LD provides the 64-QAM OFDM transmission up to 9 Gbps, which successfully delivers data with an EVM of 5.1%, an SNR of 22 dB and a BER of 3.6 x 10(-3) passed the forward error correction (FEC) criterion. (C) 2015 Optical Society of Americaen_US
dc.language.isoen_USen_US
dc.title450-nm GaN laser diode enables high-speed visible light communication with 9-Gbps QAM-OFDMen_US
dc.typeArticleen_US
dc.identifier.doi10.1364/OE.23.013051en_US
dc.identifier.journalOPTICS EXPRESSen_US
dc.citation.volume23en_US
dc.citation.issue10en_US
dc.citation.spage13051en_US
dc.citation.epage13059en_US
dc.contributor.department光電工程學系zh_TW
dc.contributor.departmentDepartment of Photonicsen_US
dc.identifier.wosnumberWOS:000354706800056en_US
dc.citation.woscount102en_US
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