Journal
VERTICAL-CAVITY SURFACE-EMITTING LASERS XVI
Volume 8276, Issue -, Pages -Publisher
SPIE-INT SOC OPTICAL ENGINEERING
DOI: 10.1117/12.902643
Keywords
vertical-cavity surface-emitting lasers (VCSELs); semiconductor lasers; optical interconnections; high-speed data transmission; multimode fiber
Funding
- Optical Link Project of the European Community's Eureka Programme
- I Systems GmbH and Prysmian Group
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Single mode (SM) 850 nm vertical-cavity surface-emitting lasers (VCSELs) are suitable for error-free (bit error ratio <10(-12)) data transmission at 17-25 Gb/s at distances 2-0.6 km over 50 mu m-core multimode fiber (MMF). Reduced chromatic dispersion due to ultralow chirp of SM VCSELs under high speed modulation (up to 40 Gb/s) are responsible for the dramatic length extension. Good coupling tolerances of the SM devices to the MMF manifest their applicability for low cost optical interconnects. As the higher resonance frequency (up to 30 GHz) is reached at lower current densities in small aperture (3 mu m -diameter) devices the SM devices are also preferable due to reliability considerations.
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