High Extinction Ratio and High-Temperature 2.5-Gb/s Floor-Free 1.3-(mu)m Transmission With a Directly Modulated Quantum Dot Laser

摘要

For the first time with a directly modulated InAs-GaAs quantum-dot laser, high extinction ratio (up to 17 dB) and 25 deg C-85 deg C single-mode-fiber data floor-free transmissions are achieved at 2.5 Gb/s. Moreover, an interferometric technique showed a nearly constant Henry factor approx2 until a bias current six times the threshold current.