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All-optical synchronization and multiplication of the frequency of mode-locked signals

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3 Author(s)
Phelan, P. ; Dept. of Phys., Trinity Coll., Dublin, Ireland ; Farrell, G. ; Hegarty, J.

The authors report all-optical synchronized multiplication by rational fractions of the modulation frequency of optical signals in self-pulsing two-section semiconductor laser diodes. The effect is based on the overlap of harmonics of the input signal with harmonics of the self-pulsation. This new generic function is illustrated with mode-locked inputs rich in harmonics, where fractions of 1, 2, and 3/2 are generated, and a number of applications for this effect are identified.<>

Published in:

Photonics Technology Letters, IEEE  (Volume:4 ,  Issue: 12 )