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Optical repeater using PFM at 1 GHz

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6 Author(s)
Brosson, P. ; Universidade Estadual de Campinas, Campinas, Brazil ; Rogers, D. ; Ripper, J. ; Patel, N.
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We report the first realization of PFM optical communication with a repeater station, using double heterostructure GaAs/GaAlAs semiconductor lasers. The system uses the property of semiconductor lasers for which the optical pulse rate can be locked by an external modulation of the injection current in the vicinity of the resonance frequency of the laser. This modulation scheme has the advantages of a high information rate capability by using the "spiking" resonance of the laser and, more importantly, of a simple repeater station in which another pulsing laser acts as a regenerative pulse amplifier.

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Quantum Electronics, IEEE Journal of  (Volume:15 ,  Issue: 8 )