W. Idler et al., LOW-DISPERSION PENALTY AND WIDE TEMPERATURE-RANGE OPERATION OVER 120-K WITH 1.55-MU-M STRAINED MQW-DFB LASER MODULE, Electronics Letters, 31(7), 1995, pp. 568-569
STM 16 (2.488 Gbit/s) system operation over a wide DFB chip temperatur
e range of more than 120 K (from -25 degrees C to +95 degrees C) is pr
esented with dispersion penalty below 1 dB after transmission across 1
00 km standard fibre, DFB operation at 1.55 mu m with a high sidemode
suppression ratio of 40 dB is achieved within -40 degrees C to +95 deg
rees C. The lasers were realised using a BRS lateral structure and a q
uaternary InGaAsP MQW stack with six compressively strained quantum we
lls and a highly detuned DFB grating.