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Performances of a frequency-locked 1.3 mu m DFB laser under 50 Mbit/s FSK modulation

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4 Author(s)
Y. C. Chung ; AT&T Bell Labs., Holmdel, NJ, USA ; R. W. Tkach ; A. R. Chraplyvy ; C. B. Roxlo

A GaInAsP DFB laser modulated with a 50 Mbit/s pseudo-random AMI FSK signal was locked to the 2p/sub 10/-3d/sub 5/ transition of argon at 1.2960 mu m using the optogalvanic effect. No significant degradation in frequency stability due to the modulation was observed. When the signal was demodulated, the power penalty due to the frequency-locking servo loop was found to be less than /sup 1///sub 3/ dB.<>

Published in:

Electronics Letters  (Volume:24 ,  Issue: 18 )