Passively mode-locked monolithic two-section gain-guided tapered quan-tum-dot lasers: I. Ultrashort and stable pulse generation
01 January 2011
Passively mode-locked monolithic two-section gain-guided tapered quantum-dot lasers is reported along with ultrashort and stable pulse generation.The active region of the laser structure consists of 10 InGaAs QD layers separated by GaAs barriers integrated in a GaAs waveguide. Gain guiding is achieved by ion implantation.