The design of an experimental single-channel 224-Mbit/s (megabits per second) optical pulse code modulation (PCM) terminal is described and data are presented which have been obtained with such a terminal using a helium-neon laser operating at 6328 Å. The basic elemets is an optical gate using lithium tantalate whose design and operating characteristics are described.
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Denton et al. (1968) studied this question.
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