Dm. Adams et al., MACH-ZEHNDER MODULATOR INTEGRATED WITH A GAIN-COUPLED DFB LASER FOR 10GBIT S, 100KM NDSF TRANSMISSION AT 1.55-MU-M/, Electronics Letters, 32(5), 1996, pp. 485-486
The first monolithic integration of an interferometric modulator with
a gain-coupled distributed-feedback laser is reported. The integrated
MZ/DFB is fabricated by butt-coupling in order to minimise design cons
traints on the MZ and DFB active regions. 10Gbit/s transmission over 1
00 km of NDSF at lambda = 1.55 mu m is achieved with a receiver penalt
y of <1dB. similar to 90% of the integrated lasers emit in a single lo
ngitudinal mode.