Determining the refractive index of a laser diode waveguide from the measured radiation pattern |
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| Authors: | V V Bliznyuk O I Koval V A Parshin A G Rzhanov A E Tarasov |
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| Institution: | 1.National Research University Moscow Power Engineering Institute,Moscow,Russia;2.Faculty of Physics,Moscow State University,Moscow,Russia |
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| Abstract: | It is shown that to find the transverse refractive-index profile of a semiconductor laser waveguide, it is sufficient to know the angle of the device’s radiation divergence and two values of the function describing the directional radiation pattern. A calculation technique is proposed and its use in the diagnostics of laser diode degradation is discussed. |
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