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Title: Polarization mode control of long-wavelength VCSELs by intracavity patterning

Polarization mode control is enhanced in wafer-fused vertical-cavity surface-emitting lasers emitting at 1310 nm wavelength by etching two symmetrically arranged arcs above the gain structure within the laser cavity. The intracavity patterning introduces birefringence and dichroism, which discriminates between the two polarization states of the fundamental transverse modes. We find that the cavity modifications define the polarization angle at threshold with respect to the crystal axes, and increase the gain anisotropy and birefringence on average, leading to an increase in the polarization switching current. As a result, experimental measurements are explained using the spin-flip model of VCSEL polarization dynamics.
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  1. Ecole Polytechnique Federale de Lausanne, Lausanne (Switzerland)
Publication Date:
OSTI Identifier:
Report Number(s):
Journal ID: ISSN 1094-4087; OPEXFF; 617555
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Optics Express
Additional Journal Information:
Journal Volume: 24; Journal Issue: 9; Journal ID: ISSN 1094-4087
Optical Society of America (OSA)
Research Org:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA)
Country of Publication:
United States
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS semiconductor lasers; vertical cavity surface emitting lasers; polarization