Title :
8 Gbit/s FSK modulation of DFB lasers with optical demodulation
Author :
Chraplyvy, A.R. ; Tkach, R.W. ; Gnauck, A.H. ; Kasper, B.L. ; Derosier, R.M.
Author_Institution :
AT&T Bell Labs., Crawford Hill Lab., Holmdel, NJ, USA
fDate :
3/2/1989 12:00:00 AM
Abstract :
Single-contact DFB lasers were frequency modulated by pseudorandom data at rates up to 8 Gbit/s by direct current modulation with no pre-equalisation of the modulation signal. The signals were optically demodulated by Fabry-Perot interferometers for conversion to ASK signals which were detected by a direct-detection receiver. At 8 Gbit/s the receiver sensitivity was -22 dBm.
Keywords :
distributed feedback lasers; frequency shift keying; light interferometers; optical communication equipment; optical modulation; semiconductor junction lasers; 8 Gbit/s; ASK signals; DFB lasers; FSK modulation; Fabry-Perot interferometers; direct current modulation; direct-detection receiver; optical demodulation; pseudorandom data; receiver sensitivity;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19890222
