Title :
Theoretical performance of multigigabit-per-second lightwave systems using injection-locked semiconductor lasers
Author :
Cartledge, John C.
Author_Institution :
Bellcore, Red Bank, NJ, USA
fDate :
7/1/1990 12:00:00 AM
Abstract :
The locking conditions for multigigabit-per-second modulation are examined, and the dependence of the receiver sensitivity on the fiber dispersion coefficient-length product is investigated. With a 4.8-Gb/s NRZ (nonreturn-to-zero) modulation, a 1-dB penalty in receiver sensitivity occurs for a transmission distance of 68 km. The injected power is 0.4 mW and the frequency detuning is -35 GHz. With 10-Gb/s NRZ modulation, the allowable transmission distance is 12.5 km for an injected power of 1.0 mW and a frequency detuning of -35 GHz. These results represent increases in the transmission distances obtained with a solitary laser by factors of 3.7 at 4.8 Gb/s and 2.7 at 10 Gb/s
Keywords :
laser mode locking; optical dispersion; optical fibres; optical links; optical modulation; semiconductor junction lasers; 0.4 mW; 1.0 mW; 12.5 km; 2.7 Gbit/s; 3.7 Gbit/s; 4.8 Gbit/s; 68 km; fiber dispersion coefficient-length product; frequency detuning; injected power; injection-locked semiconductor lasers; locking conditions; multigigabit-per-second lightwave systems; multigigabit-per-second modulation; nonreturn-to-zero; receiver sensitivity; transmission distance; Chirp modulation; Distributed feedback devices; Fiber lasers; Frequency; Injection-locked oscillators; Laser feedback; Laser noise; Master-slave; Pulse modulation; Semiconductor lasers;
Journal_Title :
Lightwave Technology, Journal of
