Title :
High-receiver sensitivity in 591 Mb/s noncoherent FSK transmission experiments with standard DFB lasers and a phase tunable DFB laser
Author :
Gautheron, O. ; Szwaj, C. ; Coeurjolly, C.
Author_Institution :
Alcatel-CIT, Laville du Bois, France
Abstract :
591-Mb/s noncoherent FSK 2/sup 23/-1 PRBS transmission experiments using two different commercial standard DFB (distributed feedback) lasers and a phase-tunable DFB laser have been carried out. The commercial DFB lasers are modulated with an AMI (alternated mark inversion) code and the phase-tunable DFB laser with a NRZ (nonreturn to zero) code. With an optical filter bandwidth of 2.7 GHz, receiver sensitivities (for a 10/sup -10/ BER) of -38 dBm for the phase-tunable DFB laser and -36 dBm for both standard DFB lasers are achieved. The influence of optical filter bandwidth and modulation index on the BER is also evaluated.<>
Keywords :
distributed feedback lasers; frequency shift keying; laser tuning; optical filters; optical links; optical receivers; semiconductor lasers; 2.7 GHz; 591 Mbit/s; AMI code; BER; NRZ code; alternated mark inversion; distributed feedback lasers; modulation index; noncoherent FSK transmission experiments; nonreturn to zero; optical filter bandwidth; phase tunable DFB laser; receiver sensitivities; standard DFB lasers; Ambient intelligence; Bandwidth; Bit error rate; Distributed feedback devices; Frequency shift keying; Laser feedback; Modulation coding; Optical filters; Optical signal processing; Phase modulation;
Journal_Title :
Photonics Technology Letters, IEEE
