Design and analysis of two-dimensional high-index-contrast grating surface-emitting lasers
- 24 December 2008
- journal article
- Published by Optica Publishing Group in Optics Express
- Vol. 17 (1), 260-265
- https://doi.org/10.1364/oe.17.000260
Abstract
The use of a two-dimensional (2D) high-index-contrast grating (HCG) with square periodic lattice is proposed to realize surface-emitting lasers. This is possible because the use of 2D HCG, in which multiple resonant leaky modes are excited by the 2 orthogonal directions of the grating, causes the high reflective zone to be split into two regions. Hence, a dip of the reflectivity is formed to support the excitation of a resonant cavity-mode inside the 2D HCG. With suitable design on the dimensions of the 2D HCGs, Q factor as high as 1032 can be achieved.Keywords
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