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Tunable short cavity 10-Gb/s 1550-nm DFB-laser with integrated optical amplifier and taper

: Moehrle, M.; Sigmund, A.; Wagner, C.; Przyrembel, G.; Bornholdt, C.; Zeiler, M.; Moerl, L.


IEEE Photonics Technology Letters 23 (2011), No.16, pp.1157-1159
ISSN: 1041-1135
Journal Article
Fraunhofer HHI ()

A novel tunable 1550-nm buried heterostructure (BH-) distributed feedback (DFB)-laser is presented consisting of a phase tuning section, a short cavity complex coupled DFB section, and an amplifier section with integrated optical taper. The device shows a narrow optical far-field, a high optical output power, up to 10-Gb/s direct modulation capability and a wavelength tuning range of several nanometers by varying the current in the phase section only.