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

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

A GaInAsP DFB laser modulated with a 50 Mbit/s pseudo-random AMI FSK signal was locked to the 2p10-3d5 transition of argon at 1.2960 μm 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 1/3 dB

Published in:

Electronics Letters  (Volume:24 ,  Issue: 18 )