Uncooled 25 Gbit/s direct modulation of semi-insulating buried-heterostructure 1.3 μm AIGalnAs quantum-well DFB lasers

摘要

Uncooled 25 Gbit/s direct modulation of 1.3 μm DFB lasers is demonstrated. The 150 μm-long semi-insulating buried-heterostructure AIGalnAs quantum-well DFB lasers show clear eye-openings with dynamic extinction ratio of 5 dB up to 70℃. 13 km singlemode-fibre transmission experiments using the devices show low power penalty within 1.3 dB between 25 and 70℃. These characteristics are the first achievement by 1.3 μm directly modulated lasers.