Lateral-longitudinal near-field measurements of 10μm broad-ridge blue laser diodes
26 January 2022 • 11:30 AM - 11:50 AM PST | Room 152 (Upper Mezzanine South)
We investigate the lateral near field of blue laser diodes with 10 μm broad ridges in pulsed conditions. While scanning the near field step by step with the help of a streak camera, we observe complex dynamics due to lateral-longitudinal mode competition, wavelength shifts and lateral mode switching. Additionally, a high-resolution spectrometer enables us to differentiate between the different mode combs which form the longitudinal mode spectrum. We observe filling of the gain volume and a spectral broadening with increasing current, as well as a slight asymmetry and an inhomogeneous lateral mode pattern.
Dominic J. Kunzmann
Chemnitz Univ. of Technology (Germany)
Masters Degree in Physics 2019 at Technical University Chemnitz Bachelors Degree in Physics 2017 at Technical University Chemnitz