External grating laser-Mach-Zehnder emitter for 2.5 and 10Gbit/s WDM systems
20 January 2000
Wavelength insensitive operation of a Fabry-Perot laser integrated with a Mach-Zchnder modulator is demonstrated, in an external fibre grating configuration from 1540 to 1560nm. The threshold current is similar to 40mA with 0.2mW output power coupled into a fibre at 80mA. Open eye diagrams at 2.5 and 10Gbit/s as well as transmission at 2.5Gbit/s with negative penalty have been obtained.