The investigation of the balanced output power of multi-section tunable laser based on reconstruction-equivalent chirp technique

A method to get balanced output power of a current-controlled in-line semiconductor laser based on REC technique is investigated. By mapping the contour lines of the P-I contour diagram of this in-line tunable laser into the wavelength-current contour map, the maximum output power and the tuning curve is obtained. Numerical studies are carried on under linear and quadratic relations, as well as an experiment measurement. Results shows it's a feasible method to find the maximum output power and obtain working currents for the current-controlled in-line semiconductor lasers.