al.: Cost-Effective Up to 40 Gb/s Transmission Performance of 1310 nm Directly Modulated Lasers for Short- to Medium-Range Distances

Abstract—This paper presents successful 20 and 40 Gb/s poten-tially low-cost transmission experiments using 1310 nm directly modulated distributed feedback lasers (DMLs) in the very-short-to medium-range distances. This paper will recommend oper-ating conditions for error-free transmission at these bit rates and distances. Pattern dependencies are identified. General charac-teristics of direct laser modulation are confirmed by dedicated simulation software and experiments. Unknown laser parameters needed to solve the rate equations are estimated by a given method based on measured and calculated small- and large-signal DML responses. Index Terms—40 Gb/s, 1310 nm, direct laser modulation, laser characterization, parameter estimation. I