Photonic crystal laser with mode selective mirrors.
The mini-stopband (MSB) of a W3 line-defect photonic crystal waveguide is used as a mirror for a GaAs based quantum-dot laser. Single mode, continuous-wave lasing is demonstrated for broad area lasers up to a current of 125 mA (2.7 x laser threshold), which demonstrates the high degree of mode selectivity of the MSB mirror. FDTD calculations indicate that optimisation of the mirror interface could lead to a further fourfold increase in reflectivity resulting in significantly reduced thresholds.
Department of Physics and Astronomy, University of St Andrews, St Andrews, Fife, KY16 9SS, UK. sam15@st-andrews.ac.uk
S A
SA
Moore
L
L
O'Faolain
T P
TP
White
T F
TF
Krauss
D003198:Computer Simulation; D017076:Computer-Aided Design; D003460:Crystallization / Q000379:methods*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers; D007909:Lenses; D008962:Models, Theoretical; D017785:Photons; D045663:Quantum Dots