High-Temperature and High-Speed Performances of InGaAlAs-MQW DFB Lasers for 10-Gb/s Datacom Applications


IEICE TRANSACTIONS on Electronics   Vol.E88-C   No.5   pp.938-943
Publication Date: 2005/05/01
Online ISSN: 
DOI: 10.1093/ietele/e88-c.5.938
Print ISSN: 0916-8516
Type of Manuscript: INVITED PAPER (Joint Special Section on Recent Progress in Optoelectronics and Communications)
InGaAlAs MQW,  DFB laser,  

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A 1.3-µm InGaAlAs-MQW RWG DFB laser with low-resistance notch-free grating during operations of up to 12.5 Gb/s at 115 was fully investigated. This performance was achieved by combining the high differential gain of the InGaAlAs MQW active layer, high characteristic temperature of RWG structures, and low-resistance notch-free grating. In addition, transmission over 30-km was achieved with the laser running at up to 115. These results confirm the suitability of this type of laser for use as a cost-effective light source in 10-Gb/s datacom applications.