Browsing by Author "Gu, C. S."

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400Mbit/s OOK green-LED visible light communication with low illumination
(2018-12-01)
Yeh, C. H.
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Chow, C. W.
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Gu, C. S.
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Guo, B. S.
;
Chang, Y. J.
In this work, we propose and demonstrate a LED-based visible light communication (VLC) system. Here, an analog front end (AFE) circuit with optimal equalization design is investigated to enhance the modulation bandwidth of LED. The VLC data rates of 340Mbit/s can be achieved under 1.5-3m free space transmissions with error-free (bit error ratio, BER<1x10(-9)). When the traffic rate is increased to 400Mbit/s, the BER satisfying the forward error correction (FEC) limit (BER=3.8x10(-3)) can be achieved at the low illumination of 34.1 Lux.
Performance analysis of free space optical communication traffic integrated with passive optical network
(2018-10-18)
Yeh, C. H.
;
Chow, C. W.
;
Gu, C. S.
;
Guo, B. S.
;
Cheng, Y. J.
In this Letter, a hybrid 10 Gbit/s on-off keying free space optics and passive optical network (FSO-PON) system is proposed and demonstrated. The experimental received sensitivities are -18 and -20 dBm at the back to back (BtB) and after 25 km fibre transmission, respectively, with 5 m free space traffic link. In the proposed analysis, FSO-PON system can support 32 and 16; and 8 and 4 remote optical wireless units for free space communication at BtB and after 25 km fibre link, respectively, when the free space transmission lengths are 150 and 300 m.