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- Q5051577 subject Q8583284.
- Q5051577 subject Q8728765.
- Q5051577 abstract "Catastrophic optical damage (COD), or catastrophic optical mirror damage (COMD), is a failure mode of high-power semiconductor lasers. It occurs when the semiconductor junction is overloaded by exceeding its power density and absorbs too much of the produced light energy, leading to melting and recrystallization of the semiconductor material at the facets of the laser. This is often colloquially referred to as "blowing the diode." The affected area contains a large number of lattice defects, negatively affecting its performance. If the affected area is sufficiently large, it can be observable under optical microscope as darkening of the laser facet, and/or as presence of cracks and grooves. The damage can occur within a single laser pulse, in less than a millisecond. The time to COD is inversely proportional to the power density.Catastrophic optical damage is one of the limiting factors in increasing performance of semiconductor lasers. It is the primary failure mode for AlGaInP/AlGaAs red lasers.Short-wavelength lasers are more susceptible to COD than long-wavelength ones.The typical values for COD in industrial products range between 12 and 20 MW/cm2.".
- Q5051577 wikiPageExternalLink hempel.pdf.
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- Q5051577 wikiPageWikiLink Q8583284.
- Q5051577 wikiPageWikiLink Q865807.
- Q5051577 wikiPageWikiLink Q8728765.
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- Q5051577 comment "Catastrophic optical damage (COD), or catastrophic optical mirror damage (COMD), is a failure mode of high-power semiconductor lasers. It occurs when the semiconductor junction is overloaded by exceeding its power density and absorbs too much of the produced light energy, leading to melting and recrystallization of the semiconductor material at the facets of the laser.".
- Q5051577 label "Catastrophic optical damage".