Directionality and mode structure of radiation of semiconductor lasers with electron-beam pumping |
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Authors: | A L Gurskii I I Zholnerevich V I Kozlovskii I I Kulak E V Lutsenko A I Mit'kovets G P Yablonskii |
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Institution: | (1) B. I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, 68, F. Skorina Ave., 220072 Minsk, Belarus;(2) Belarusian State University, Minsk;(3) Institute of Molecular and Atomic Physics, National Academy of Sciences of Belarus, Minsk;(4) P. N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow |
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Abstract: | We present results of investigations of the directionality diagram and mode structure of radiation of semiconductor lasers
with electron pumping that have microrelief reflectors instead of a blind mirror and output mirrors, whose coefficient of
reflection depends on the wavelength and the angle of light propagation. Application of such mirrors allows one to narrow
the spectrum of output radiation of the lasers, simultaneously reducing the threshold and increasing the output power. The
discovered multilobe structure of the directionality diagrams is explained on the basis of geometrical optics. The possibility
of controlling the directionality of radiation depending on the spectral and angular characteristics of the output mirror
is shown.
Reported at the Second International Scientific and Technical Conference on Quantum Electronics, Minsk, November 23–25, 1998.
Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 66, No. 5, pp. 092–697, Septemter–October, 1999. |
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Keywords: | semiconductor laser directionality diagram electron pumping mode structure microrelief |
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