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The feasibility of using a single GaAlAs buried-heterostructure laser as a multifunctional terminal on a fibre-optic bus has been demonstrated. During the reception period the received optical signal is simultaneously tapped for the information and optically amplified for further transmission. During the transmitting period the laser diode terminal works as a conventional optical emitter. A 100 Mbit/s...
A clock recovery circuit has been constructed using dual-gate MESFETs. From a 5 Gbit/s data stream consisting of 50 time division multiplexed 100 MHz channels, the 100 MHz master clock is recovered both in frequency and in phase. Phase jitter is less than 20 ps in the presence of data and channel noise. A significant advantage of this approach over previous ones is the simplicity in the clock recovery...
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