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Proceedings Paper

Aging behavior of high-power laser arrays monitored by photocurrent spectroscopy
Author(s): Jens Wolfgang Tomm; A. Baerwolff; Uwe Menzel; Ch. Lier; Thomas Elsaesser; Franz X. Daiminger; Stefan Heinemann
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Paper Abstract

The well-known method of photocurrent spectroscopy, i.e. the measurement of the spectral sensitivity of a laser diode like for a detector, was found to monitor aging properties of (In)AlGaAs/GaAs high power laser diode arrays (LDA) in a convenient way. Photocurrent spectra of LDAs emitting at 808 nm (1.53 eV) were measured in the 0.8 - 3.0 eV photon energy range. Aging induced changes in different spectral regions reveal the influence of different mechanisms affecting the structure. Conclusions on the microscopic nature of the changes are drawn and applications are discussed.

Paper Details

Date Published: 1 May 1997
PDF: 11 pages
Proc. SPIE 3004, Fabrication, Testing, and Reliability of Semiconductor Lasers II, (1 May 1997); doi: 10.1117/12.273826
Show Author Affiliations
Jens Wolfgang Tomm, Max-Born-Institut fuer Nichtlineare Optik und Kurzzeitspektroscopie (Germany)
A. Baerwolff, Max-Born-Institut fuer Nichtlineare Optik und Kurzzeitspektroskopie (Germany)
Uwe Menzel, Max-Born-Institut fuer Nichtlineare Optik und Kurzzeitspektroskopie (Germany)
Ch. Lier, Max-Born-Institut fuer Nichtlineare Optik und Kurzzeitspektroskopie (Germany)
Thomas Elsaesser, Max-Born-Institut fuer Nichtlineare Optik und Kurzzeitspektroskopie (Germany)
Franz X. Daiminger, Jenoptik Laserdiode GmbH (Germany)
Stefan Heinemann, Jenoptik Laserdiode GmbH (Germany)


Published in SPIE Proceedings Vol. 3004:
Fabrication, Testing, and Reliability of Semiconductor Lasers II
Mahmoud Fallahi; S. C. Wang, Editor(s)

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