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Demonstration of blazing effect in detuned second order gratings

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4 Author(s)
Hagberg, M. ; Dept. of Optoelectron. & Electr. Meas., Chalmers Univ. of Technol., Goteborg ; Eriksson, N. ; Kjellberg, T. ; Larsson, A.G.

Surface-emitting InGaAs/AlGaAs lasers with two first order gratings as feedback elements followed by one detuned second order blazed grating as output window were fabricated using electron beam lithography and chemically assisted ion beam etching. A strong dependence of the surface emission efficiency on the blazed grating orientation was observed

Published in:

Electronics Letters  (Volume:30 ,  Issue: 7 )