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Physical limits of semiconductor laser operation: A time-resolved analysis of catastrophic optical damage
Author(s) -
Mathias Ziegler,
Martin Hempel,
H. Larsen,
Jens W. Tomm,
Peter E. Andersen,
Sønnik Clausen,
Stella N. Elliott,
Thomas Elsaesser
Publication year - 2010
Publication title -
applied physics letters
Language(s) - English
Resource type - Journals
eISSN - 1077-3118
pISSN - 0003-6951
DOI - 10.1063/1.3463039
Subject(s) - laser , semiconductor laser theory , materials science , diode , semiconductor , optoelectronics , resolution (logic) , optics , semiconductor device , thermal , physics , nanotechnology , thermodynamics , layer (electronics) , artificial intelligence , computer science
The early stages of catastrophic optical damage (COD) in 808 nm emitting diode lasers are mapped by simultaneously monitoring the optical emission with a 1 ns time resolution and deriving the device temperature from thermal images. COD occurs in highly localized damage regions on a 30 to 400 ns time scale which is determined by the accumulation of excess energy absorbed from the optical output. We identify regimes in which COD is avoided by the proper choice of operation parameters.

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