Title :
A novel, highly-strained structure with an integrated optical cavity for a low threshold germanium laser
Author :
Gupta, Shashank ; Nam, Donguk ; Petykiewicz, Jan ; Sukhdeo, David ; Vuckovic, Jelena ; Saraswat, Krishna
Author_Institution :
Dept. of Electr. Eng., Stanford Univ., Stanford, CA, USA
Abstract :
We propose a novel low threshold, CMOS-compatible laser structure with a strained germanium gain medium and a photonic crystal cavity. We demonstrate 1.70% uniaxial tensile strain through experiments and design a high quality factor (>11,000) optical cavity around the gain medium.
Keywords :
Q-factor; germanium; integrated optics; laser cavity resonators; photonic crystals; semiconductor lasers; tensile strength; CMOS-compatible laser structure; Ge; high quality factor optical cavity; highly-strained structure; integrated optical cavity; low threshold germanium laser; photonic crystal cavity; strained germanium gain medium; uniaxial tensile strain; Cavity resonators; Finite element analysis; Laser beams; Optical reflection; Silicon compounds; Tensile strain;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA
