Spectral Mode Hop Characteristics of Ridge Waveguide Lasers With Distributed Bragg-Reflector

In this letter, the mode hop characteristics of distributed Bragg-reflector ridge waveguide lasers emitting at 1120 nm with different resonator geometries and facet reflectivities are investigated. The emission wavelength is measured systematically for a wide temperature and pump current range in order to find the setup that provides the largest mode hop free tuning range. The measurements are supplemented by calculations based on a phenomenological model, which allows a prediction of the general emission characteristics.