Journal Of Lightwave Technology,

JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 30, NO. 1, JANUARY 1, 2012 61 Visible-Light communication theory Using a CMOS-Controlled Micro-LightEmitting-Diode Array Jonathan J. D. McKendry, David Massoubre, Shuailong Zhang, Bruce R. Rae, Richard P. Green, Erdan Gu, Robert K. Henderson, A. E. Kelly, and Martin D. Dawson, Fellow, IEEE abstractWe report the high-frequency conversion of case-by-case pixels in 8 8 militarys of III-nitride-based micro-pixellated light-emitting diodes, where the pixels within the run weave from 14 to 84 m in diameter. The peak firing wavelengths of the turn of eventss ar 370, 405, 450 and 520 nm, respectively. Smaller vault of heaven micro-LED pixels generally exhi point higher(prenominal) changeover bandwidths than their larger expanse counterparts, which is attributed to their ability to be impelled at higher real densities. The highest optical dB passage bandwidths from these devices ar shown to be in excess of 400 MHz, which, to our knowledge, argon the highest bandwidths yet reported for GaN LEDs. These devices are also integrated with a complementary color metal-oxide-semiconductor (CMOS) driver array chip, allowing for simple computer take in of individual micro-LED pixels.

The bandwidth of the integrated micro-LED/CMOS pixels is shown to be up to 185 MHz; entropy transmission at microprocessor chip rates up to 512 Mbit/s is demonstrated victimisation on-off keying non return-to-zero modulation with a bit-error ratio of little than , using a 450 nm-emitting 24 m diameter CMOS-controlled micro-LED. As the CMOS chip allows for up to 16 independent data inputs, this device demonstrates the potential for multi-Gigabit/s parallel of latitude data transmission using CMOS-controlled micro-LEDs. Index Termscomplementary metal-oxide-semiconductor (CMOS), GaN, micro-light-emitting diodes (micro-LEDs), modulation, visible light communications (VLC). I. INTRODUCTION IGHT-EMITTING diodes based on the AlInGaN alloy system pledge energy-ef?cient light generation crosswise the visible spectrum and beyond. In particular,...If you motive to get a be essay, order it on our website: Ordercustompaper.com

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