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Tunable Short Cavity 10-Gb/s 1550-nm DFB-Laser With Integrated Optical Amplifier and Taper

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7 Author(s)
Martin Moehrle ; Fraunhofer Institute for Telecommunications, Heinrich-Hertz-Institute, Berlin, German ; A. Sigmund ; C. Wagner ; G. Przyrembel
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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.

Published in:

IEEE Photonics Technology Letters  (Volume:23 ,  Issue: 16 )