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Spatial Modal Control of Two-Dimensional Photonic Crystal Bragg Lasers

Research Area: Nanophotonics Year: 2007
Type of Publication: Article Keywords: photonic crystal, Bragg laser,
Authors: Zhu, L.; Sun, X.; DeRose, G. A.; Scherer, Axel; Yariv, A.
Journal: Optics Letters Volume: 32
Number: 16 Pages: 2273-2275
Month: August
We investigate the modal losses and field distributions of different order transverse modes supported by the photonic crystal Bragg structure using a transfer matrix method. We find that only the fundamental transverse mode has a single-lobed near field and far field and there exists a trade-off between ensuring lasing in the fundamental transverse mode and reducing the threshold. Employing these design principles, we experimentally demonstrate a large-area, edge-emitting, and single-mode semiconductor photonic crystal Bragg laser with a single-lobed, diffraction-limited far field under continuous wave condition.
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