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Simple ASK transmitter using a 790 nm self-pulsating laser diode for local area networks

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3 Author(s)
K. -W. Na ; Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea ; C. -H. Lee ; S. -Y. Shin

A simple amplitude shift keying (ASK) optical link is demonstrated by using a low-cost self-pulsating laser diode and an envelope detector for a low-cost broadband local area network. A link sensitivity of -22 dBm was achieved at 200 Mbit/s. Because the self-pulsation frequency can be tuned by the bias current, frequency division multiplexing can be simply implemented for multiuser applications

Published in:

Electronics Letters  (Volume:31 ,  Issue: 4 )