A plant and a technique of determining the mode composition of the radiation of laser diodes with quantum-size separate restriction heterostructures are described. Based on the features of laser beams with large divergence, the technique makes it possible to determine whether the diode oscillation regime is single mode. It is established for the first time that the radiation directional pattern of single-mode diodes may be specified in terms of elementary functions.
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Translated from Metrologiya, No. 12, pp. 16–26, December, 2013.
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Bliznyuk, V.V., Brit, M.A., Efremov, V.S. et al. Determination of the Mode Composition of the Radiation of a Laser Diode in Open Space. Meas Tech 56, 1390–1396 (2014). https://doi.org/10.1007/s11018-014-0388-1
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DOI: https://doi.org/10.1007/s11018-014-0388-1