Abstract
Uncooled direct modulation of a 1.55 μm distributed feedback (DFB) laser is demonstrated at 10 Gbit/s is demonstrated. The small signal performance of the laser at 25 °C gives rise to a -3 dB bandwidth in excess of 9 GHz, reducing to 8 GHz at 55 °C. Under uncooled, direct modulation at 10 Gbit/s the back-to-back eye diagrams obtained at temperatures up to 55 °C are found to be open, with extinction ratios of 6 dB for a peak-to-peak current swing of 40 mA. Transmission at 10 Gbit/s over standard singlemode fibre, is demonstrated over 12 km with the uncooled device. Using this device, multi-level coding is demonstrated at 20 Gb/s, and transmission at 5 Gb/s over 700 m of multi-mode fibre (MMF) at 60 °C.
Original language | English |
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Pages (from-to) | 203-208 |
Number of pages | 6 |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 3947 |
Publication status | Published - 1 Jan 2000 |
Event | In-Plane Semiconductor Lasers IV - San Jose, CA, USA Duration: 24 Jan 2000 → 25 Jan 2000 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering