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Proceedings Paper

Catastrophic optical mirror damage in diode lasers monitored during single pulse operation
Author(s): Jens W. Tomm; Mathias Ziegler; Thomas Elsaesser; Henning E. Larsen; Paul M. Petersen; Peter E. Andersen; Sønnik Clausen; Ute Zeimer; David Fendler
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Paper Abstract

The catastrophic optical mirror damage (COMD) effect is analyzed for 808 nm emitting diode lasers in single-pulse operation. During each single pulse, both nearfield of the laser emission and thermal image of the laser facet are monitored with cameras being sensitive in the respective spectral regions. A temporal resolution in the μs-range is achieved. The COMD is unambiguously related to the occurrence of a 'thermal flash' detected by thermal imaging. A one-by-one correlation between emission nearfield, 'thermal flash', thermal runaway, and structural damage is observed. As a consequence of the single-pulse-excitation technique, the propagation of 'dark bands' as observed in photo- or cathodoluminescence maps in the plane of the active region from the front facet is halted after the first pulse. Because of the rapidness of the thermal runaway, we propose the single-pulse technique for testing the facet stability and the intentional preparation of early stages of COMD; even for diode lasers that regularly fail by other mechanisms.

Paper Details

Date Published: 12 February 2010
PDF: 7 pages
Proc. SPIE 7616, Novel In-Plane Semiconductor Lasers IX, 76161G (12 February 2010); doi: 10.1117/12.839585
Show Author Affiliations
Jens W. Tomm, Max-Born-Institut (Germany)
Mathias Ziegler, Max-Born-Institut (Germany)
Thomas Elsaesser, Max-Born-Institut (Germany)
Henning E. Larsen, DTU Fotonik (Denmark)
Technical Univ. of Denmark (Denmark)
Paul M. Petersen, DTU Fotonik (Denmark)
Technical Univ. of Denmark (Denmark)
Peter E. Andersen, DTU Fotonik (Denmark)
Technical Univ. of Denmark (Denmark)
Sønnik Clausen, Risø-DTU (Denmark)
Technical Univ. of Denmark (Denmark)
Ute Zeimer, Ferdinand-Braun-Institut für Höchstfrequenztechnik (Germany)
David Fendler, Ferdinand-Braun-Institut für Höchstfrequenztechnik (Germany)


Published in SPIE Proceedings Vol. 7616:
Novel In-Plane Semiconductor Lasers IX
Alexey A. Belyanin; Peter M. Smowton, Editor(s)

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