Title :
A high speed transmitter for visible light communications upto 50 Mbps
Author :
Ahmed, Arif ; Khan, Junaid A. ; Younis, Usman
Author_Institution :
Dept. of Electr. Eng., Nat. Univ. of Sci. & Technol., Islamabad, Pakistan
Abstract :
A high speed, low-cost transmitter for visible light communication has been developed. The PCB design has been optimized for high frequency operation using surface-mounted devices. A two-stage on-chip amplifier has been used to amplify the square-wave pulses up to 50 MHz fundamental frequency, which is limited by the measurement setup. The frequency components up to eleventh harmonic have been observed in the amplified signal. The transmitter driver has been used to operate a high-brightness LED and the transmission up to 25 MHz-50 Mbps (using NRZ) has been attained.
Keywords :
optical communication; optical transmitters; printed circuit design; surface mount technology; PCB design; high speed transmitter; square-wave pulses; surface mounted devices; two-stage on-chip amplifier; visible light communications; Bandwidth; Harmonic analysis; Inverters; Light emitting diodes; Optical transmitters; Receivers;
Conference_Titel :
Emerging Technologies (ICET), 2014 International Conference on
Conference_Location :
Islamabad
Print_ISBN :
978-1-4799-6088-0
DOI :
10.1109/ICET.2014.7021035
