Comparison of optical reflection tolerance between conventional and λ/4-shifted DFB lasers in a 2.4 Gbit/s system
- 4 August 1988
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 24 (16) , 1049-1051
- https://doi.org/10.1049/el:19880714
Abstract
Effects of optical reflection on transmission characteristics with conventional fibre (1.3μm zero dispersion) are examined using 1.55μm conventional and λ/4-shifted DFB lasers. It is shown for the first time that λ/4-shifted DFB lasers are superior to conventional ones in transmission performance with optical reflection. BER floor levels of λ/4-shifted DFB lasers are lower than those of conventional ones, and do not change for the reflection level of PC-type optical connector.Keywords
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