2.5-Gb/s transmission characteristics of 1.3-μm DFB lasers with external optical feedback
- 7 August 2002
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 14 (1) , 101-103
- https://doi.org/10.1109/68.974175
Abstract
All-optical networks will require low-cost laser sources. In order to reduce the packaging cost and to design a module without optical isolator, the 2.5-Gb/s 300-ps/nm transmission characteristics of 1.3-/spl mu/m distributed-feedback lasers is analyzed in the presence of strong external optical feedback. The penalty degradation when the laser is operating under optical feedback is discussed and its dependence with the coherence collapse onset is analyzed. Although a drastic increase of the penalty with the coherence collapse state is reported, floor-free operation is demonstrated with a return loss as high as -8 dB.Keywords
This publication has 5 references indexed in Scilit:
- 1.3 μm low cost plastic module for 622 Mbit/s transmission at 85°CPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- High temperature (Ga)InAsP/high band gap GaInAsP barriers 1.3 μm SL-MQW lasers grown by gas source MBEJournal of Crystal Growth, 1997
- The effect of reflections on the system performance of intensity modulated laser diodesJournal of Lightwave Technology, 1991
- Regimes of feedback effects in 1.5-µm distributed feedback lasersJournal of Lightwave Technology, 1986
- Coherence collapse in single-mode semiconductor lasers due to optical feedbackIEEE Journal of Quantum Electronics, 1985