A metal-dielectric mirror is shown as a simple solution for high-reflectivity coatings on cleaved-facet edge-emitting lasers, as well as a means to provide wavelength stabilization and spectral filtering. We show, through the use of a simple SiO2/Ti/Au coating, reflectivities better than 90% and a 25% reduction in the 30-dB linewidth of the output spectrum. Wavelength filtering and varying reflectivities are described as the result of multiple reflections and a coupled-cavity effect.
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| http://dx.doi.org/10.1364/ol.29.001010 | DOI Listing |
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