Abstract

Half-duplex transmission over a single optical fiber using an LED source–detector (LED-DET) scheme, that is, LED's being used both as light sources and as photodetectors, has been demonstrated. The effective quantum efficiency in the detector mode, including optical power coupling from the fiber, was measured to be 18%, which is compared with the furcation loss in the conventional duplex transmission system using optical directional couplers. It is shown that we can realize a more economical, high-performance, half-duplex data transmission system by using an LED-DET scheme.

© 1978 Optical Society of America

Full duplex transmission link over single-strand optical fiber

B. S. Kawasaki, K. O. Hill, D. C. Johnson, and A. U. Tenne-Sens
Opt. Lett. 1(3) 107-108 (1977)

Parallel image transmission by a single optical fiber

A. A. Friesem and U. Levy
Opt. Lett. 2(5) 133-135 (1978)

Analog image transmission in optical waveguides

Stanford P. Yukon and Bernard Bendow
Opt. Lett. 2(3) 75-76 (1978)

Efficient optical waveguide switch/amplitude modulator

R. V. Schmidt and P. S. Cross
Opt. Lett. 2(2) 45-47 (1978)

Capacitive-mesh output couplers for optically pumped far-infrared lasers

D. A. Weitz, W. J. Skocpol, and M. Tinkham
Opt. Lett. 3(1) 13-15 (1978)