Abstract
We describe the method for measuring the microwave current modulation amplitude of a diode laser with a vertical cavity. The method is based on comparison of the laser frequency shift upon a change in the constant current component and the shift induced by microwave modulation amplitude. This shift is due to the laser cavity heating. The knowledge of the current modulation amplitude is important for analysis of the laser modulation spectra with account for the dynamics of interaction of the spectral components with one another and with inversion.
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ACKNOWLEDGMENTS
The authors are grateful to V.V. Meshcheryakov for discussion of results.
Funding
This study was supported by the Russian Science Foundation (project no. 19-12-00417).
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Translated by N. Wadhwa
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Bogatov, A.P., Vasil’ev, V.V., Vas’kovskaya, M.I. et al. Optical Method for Determining the Microwave Current Modulation Amplitude of Diode Lasers with a Vertical Cavity. Bull. Lebedev Phys. Inst. 50 (Suppl 2), S163–S168 (2023). https://doi.org/10.3103/S1068335623140038
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DOI: https://doi.org/10.3103/S1068335623140038