Title :
Buried heterostructure quantum cascade lasers with a large optical cavity waveguide
Author :
Beck, Mattias ; Faist, Jérôme ; Oesterle, Ursula ; Ilegems, Marc ; Gini, Emilio ; Melchior, Hans
Author_Institution :
Inst. de Phys., Neuchatel Univ., Switzerland
Abstract :
We report the fabrication and characterization of buried heterostructure quantum cascade (BH-QC) lasers formed by selective lateral regrowth of InP on the laser ridge by metal organic chemical vapor deposition (MOCVD). A fivefold improvement in maximum average power (up to 10 mW) and a twofold improvement in maximum operation duty cycle (up to 17%) are measured at 273 K and are attributed to lower lateral waveguide losses and a better heat dissipation.
Keywords :
MOCVD; laser beams; laser cavity resonators; laser transitions; optical fabrication; optical losses; quantum well lasers; ridge waveguides; waveguide lasers; 10 mW; 17 percent; 273 K; InP; MOCVD; buried heterostructure quantum cascade lasers; characterization; fabrication; heat dissipation; large optical cavity waveguide; laser ridge; lateral waveguide losses; maximum average power; maximum operation duty cycle; metal organic chemical vapor deposition; selective lateral regrowth; Chemical lasers; Chemical vapor deposition; Indium phosphide; MOCVD; Optical device fabrication; Optical waveguides; Organic chemicals; Power measurement; Quantum cascade lasers; Waveguide lasers;
Journal_Title :
Photonics Technology Letters, IEEE
