Physics – Quantum Physics
Scientific paper
2009-04-11
Optics Express, Vol. 16 Issue 6, pp.3577-3582 (2008)
Physics
Quantum Physics
6 pages, 5 figures
Scientific paper
10.1364/OE.16.003577
In this paper we show that by suitably tailoring the dispersion characteristics of a Bragg reflection waveguide (BRW) mode, it is possible to achieve efficient photon pair generation over a large pump bandwidth while maintaining narrow signal bandwidth. The structure proposed consists of a high index core BRW with a periodically poled GaN core and periodically stratified cladding made up of alternate layers of $Al_{0.02}Ga_{0.98}N$ and $Al_{0.45}Ga_{0.55}N$. Such photon-pair generators should find applications in realizing compact and stable sources for quantum information processing.
Alibart Olivier
Das Ranabir
Micheli Marc de
Ostrowsky Daniel Barry
Tanzilli Sébastien
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