Leakage Current Reduction in Buried Heterostructure Tunable Twin-Guide Laser Diodes

Abstract
An effective concept for leakage current reduction in tunable twin-guide (TTG) lasers is proposed. TTG lasers fabricated according to this modified design using a hybrid metalorganic vapour phase and liquid phase process achieve CW output power exceeding 25 mW and linewidth below 10 MHz within the tuning range of 2 nm.