Discrete mode lasers for applications in access networks
Fast development of the modern telecommunication networks such as fiber-to-the-home or radio-over-fiber systems require an inexpensive yet reliable optical transmitter for electro-optic conversion. Such devices should be able to generate stable, single moded optical signals suitable for athermal ope...
| Published in: | 2007 9th International Conference on Transparent Optical Networks |
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| Main Authors: | , , , , , |
| Format: | Conference Object |
| Language: | English |
| Published: |
Institute of Electrical and Electronics Engineers
2007
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| Subjects: | |
| Online Access: | https://doras.dcu.ie/2324/1/ieee_icton_2007_5.pdf https://doi.org/10.1109/ICTON.2007.4296295 |
| Summary: | Fast development of the modern telecommunication networks such as fiber-to-the-home or radio-over-fiber systems require an inexpensive yet reliable optical transmitter for electro-optic conversion. Such devices should be able to generate stable, single moded optical signals suitable for athermal operation. Discrete Mode Lasers (DMLs) are able to fulfill all the above-mentioned requirements with the added benefit of low sensitivity to optical feedback. DMLs are essentially Fabry-Perot lasers in which the refractive index is modified by introducing perturbations along very small sections of the laser cavity. These modifications result in a single mode laser output with a very narrow linewidth (order of 400 kHz). In this paper, we demonstrate how a DML can outperform the commonly used/commercially available DFB lasers in terms of linewidth, sensitivity to optical feedback and transmission performance in the presence of feedback. |
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