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Demodulation of multi-gigahertz frequency-modulated optical signals in an injection-locked distributed feedback laser oscillator

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1 Author(s)
Nakajima, H. ; CNET, Lab. de Bagneux, France

A new type of wavelength selective optical receiver that allows the demodulation of multi-gigaHertz frequency modulated (FM) optical signals is demonstrated by detecting FM light-induced changes in the forward voltage of an optically injection-locked distributed feedback semiconductor laser operating at far above the lasing threshold. A bandwidth as wide as 2 GHz is reported together with an FM demodulation efficiency of 52 mu V/GHz.

Published in:

Electronics Letters  (Volume:26 ,  Issue: 15 )