High-speed and temperature-insensitive operation in 1.3-µm InAs/GaAs high-density quantum dot lasers

Temperature-insensitive 10.3-Gb/s operation under fixed driving condition was demonstrated using directly-modulated InAs/GaAs high-density quantum dot lasers, maintaining an Ethernet mask margin of 48 % up to 100degC. 20-Gb/s direct modulation has also been demonstrated.