50_kHz_FM_OPTICAL_RECEIVER

Published:2009/7/2 3:00:00 Author:May | From:SeekIC

Designed for pulse-rate modulation system in which transmitter varies pulse rate of modulated light beam in optical-fiber cable above and below center frequency of 50 kHz. L14G2 GE photo transistor converts modulated optical light to RF signal for demodulation and reconstruction of original audio. Based on circuit in General Electric Opto-Electronics Manual. -I. Math, Math's Notes, CQ, July 1977, p 67-68 and 90.



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