Design and analysis of two-dimensional high-index-contrast grating surface-emitting lasers | Zendy

Rakesh G. Mote | Zendy; S. F. Yu | Zendy; Wei Zhou | Zendy; Xiaofeng Li | Zendy

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Design and analysis of two-dimensional high-index-contrast grating surface-emitting lasers

Author(s) -

Rakesh G. Mote,

S. F. Yu,

Wei Zhou,

Xiaofeng Li

Publication year - 2008

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.17.000260

Subject(s) - grating , optics , laser , high contrast , materials science , semiconductor laser theory , refractive index , diffraction grating , guided mode resonance , excited state , optoelectronics , surface (topology) , excitation , contrast (vision) , physics , mathematics , geometry , quantum mechanics , nuclear physics

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.

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