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Optical Engineering

In situ analysis of a vertical-cavity surface-emitting laser active layer by two-photon spectroscopy
Author(s): Bruno Ullrich; R. Schroeder; A. Knigge; M. Zorn; Marcus Weyers
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Paper Abstract

We present the in situ optical analysis of the active layers in a vertical-cavity surface-emitting laser structure with a GaInP/AlGaInP core at room temperature. To penetrate the high number of AlAs and AlGaAs Bragg mirrors, two-photon spectroscopy is employed to determine the characteristics of the cavity and specifically the emissive layer for a variety of excited electron-hole pair concentrations in the range of 5×1017 to 6×1019 cm–3. It is found that many body effects due to optical doping lower the emission wavelengths of the devices. The shift is equivalent for several different structures and the effect is therefore assigned to the active zone. Furthermore, it is demonstrated that the emission wavelength of the lasers considerably depends on the detection angle.

Paper Details

Date Published: 1 April 2003
PDF: 5 pages
Opt. Eng. 42(4) doi: 10.1117/1.1557173
Published in: Optical Engineering Volume 42, Issue 4
Show Author Affiliations
Bruno Ullrich, Bowling Green State Univ. (United States)
R. Schroeder, Bowling Green State Univ. (United States)
A. Knigge, Ferdinand-Braun-Inst. fuer Hoechstfrequenztechnik (Germany)
M. Zorn, Ferdinand-Braun-Inst. fuer Hoechstfrequenztechnik (Germany)
Marcus Weyers, Ferdinand-Braun-Inst. fuer Hoechstfrequenztechnik (Germany)

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