Abstract
Numerical simulations were carried out on micropillar cavities consisting of distributed Bragg reflectors (DBRs) with an InP spacer layer. Owing to a large refractive index contrast of in DBRs, cavities with just 4/6.5 top/bottom DBR pairs that give a low pillar height (), have noticeable Purcell-enhancement effect in the 1.55-μm band. With careful designs on cavities with diameters of , a quality factor of up to 3300, a nominal Purcell factor of up to 110, and an output efficiency of are obtainable. These results ensure improvement of operation frequency and enhancement of photon indistinguishability for 1.55-μm single photon sources based on InAs/InP quantum dots.
© 2013 Optical Society of America
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