1550nm InAs/InP Quantum Dash Based Directly Modulated Lasers for Next Generation Passive Optical Network

High speed transmissions up to 20Gb/s are reported using 1.55µm InP-based Quantum Dashes distributed feedback lasers. Combining the directly modulated laser with an etalon filter, we demonstrate uncompensated and non-amplified SMF 10Gb/s transmissions at a constant bias current from back-toback up to 65km with extinction ratio as large as 8dB. This result opens the way to the implementation of low cost high bit rate sources for access network applications.