P. Gunning et al., PICOSECOND PULSE GENERATION OF LESS-THAN-5PS FROM GAIN-SWITCHED DFB SEMICONDUCTOR-LASER DIODE USING LINEARLY STEP-CHIRPED FIBER GRATING, Electronics Letters, 31(13), 1995, pp. 1066-1067
4.4ps pulses generated from a 1546nm gain-switched DFB-SLD using a 6mm
long linearly step-chirped fibre grating represent a temporal compres
sion factor of 4.3. The pulse source is stable, compact and dispenses
with the dispersion compensating fibre conventionally used for pulse c
ompression.