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Journal article

Spatial-Mode Discrimination in Guided and Antiguided Arrays of Long-Wavelength VCSELs

By Czyszanowski, T.1; Sarzala, R. P.1; Dems, M.1; Walczak, J.1; Wasiak, M.1; Nakwaski, W.1; Iakovlev, V.2; Volet, N.3; Kapon, E.2

From

Photonics Group, Lodz Univ. of Technol., Lodz, Poland1

BeamExpress SA, Lausanne, Switzerland2

Lab. of Phys. of Nanostruct., Ecole Polytech. Fed. de Lausanne, Lausanne, Switzerland3

Three means of optical confinement imposed on InAlGaAs/InP 1.3 μm VCSEL arrays are investigated with self-consistent numerical model of laser operation. Laterally patterned tunnel junction (TJ), in-build guiding realized with air-gap patterning, and antiguiding schemes are investigated and optimized to achieve single-mode operation.

The analysis shows that mode discrimination in laterally patterned TJ is very responsive to the injected current, the air-gap patterning reduces influence of the working conditions and supports multimode operation, and finally, antiguiding schemes provide single-mode operation for prescribed geometrical design.

Language: English
Publisher: IEEE
Year: 2013
Pages: 1-10
ISSN: 15584542 and 1077260x
Types: Journal article
DOI: 10.1109/JSTQE.2013.2251324
Keywords

Laser arrays transverse optical modes Laser modes Optical arrays Optical reflection Refractive index Stimulated emission Temperature distribution Vertical cavity surface emitting lasers vertical-cavity surface-emitting lasers (VCSELs)

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