Abstract
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.
Original language | English |
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Journal | Applied Physics Letters |
Volume | 97 |
Issue number | 2 |
Pages (from-to) | 021110 |
ISSN | 0003-6951 |
DOIs | |
Publication status | Published - 2010 |
Bibliographical note
Copyright (2010) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.Keywords
- Combustion pollution control technologies
- Fusion energy