Optimisation of coupling between photonic crystal and active elements in an epitaxially regrown GaAs based photonic crystal surface emitting laser
DM Williams, KM Groom, BJ Stevens… - Japanese Journal of …, 2012 - iopscience.iop.org
Japanese Journal of Applied Physics, 2012•iopscience.iop.org
The waveguide design of a GaAs based, epitaxially regrown photonic crystal surface
emitting laser is discussed so as to optimise the coupling of the photonic crystal and the
mode overlap with the quantum wells. Design criteria include the positioning of the quantum
well and the photonic crystal layers, and the effect of varying aluminium composition in the
lower cladding layer. Room-temperature, pulsed laser oscillation is demonstrated.
emitting laser is discussed so as to optimise the coupling of the photonic crystal and the
mode overlap with the quantum wells. Design criteria include the positioning of the quantum
well and the photonic crystal layers, and the effect of varying aluminium composition in the
lower cladding layer. Room-temperature, pulsed laser oscillation is demonstrated.
Abstract
The waveguide design of a GaAs based, epitaxially regrown photonic crystal surface emitting laser is discussed so as to optimise the coupling of the photonic crystal and the mode overlap with the quantum wells. Design criteria include the positioning of the quantum well and the photonic crystal layers, and the effect of varying aluminium composition in the lower cladding layer. Room-temperature, pulsed laser oscillation is demonstrated.
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