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Polarization mode control of long-wavelength VCSELs by intracavity patterning

Journal Article · · Optics Express
DOI:https://doi.org/10.1364/OE.24.009715· OSTI ID:1246335

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.

Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC04-94AL85000
OSTI ID:
1246335
Report Number(s):
SAND--2016-0066J; 617555
Journal Information:
Optics Express, Journal Name: Optics Express Journal Issue: 9 Vol. 24; ISSN 1094-4087; ISSN OPEXFF
Publisher:
Optical Society of America (OSA)Copyright Statement
Country of Publication:
United States
Language:
English

References (21)

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Cited By (2)

Ultrafast spin-lasers journal April 2019
Ultrafast spin-lasers text January 2018

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