Monitoring of early catastrophic optical damage in laser diodes based on facet reflectivity measurement

2017 ◽  
Vol 110 (22) ◽  
pp. 223503 ◽  
Author(s):  
S. Y. Zhang ◽  
S. W. Feng ◽  
Y. M. Zhang ◽  
Z. F. An ◽  
H. W. Yang ◽  
...  
Keyword(s):  
Laser Diodes ◽  
Reflectivity Measurement ◽  
Optical Damage ◽  
Facet Reflectivity

Catastrophic-Optical-Damage-Free InGaN Laser Diodes With Epitaxially Formed Window Structure

2011 ◽  
Vol 17 (5) ◽  
pp. 1412-1416 ◽  
Author(s):  
Masao Kawaguchi ◽  
Hideki Kasugai ◽  
Katsuya Samonji ◽  
Hiroyuki Hagino ◽  
Kenji Orita ◽  
...  
Keyword(s):  
Laser Diodes ◽  
Optical Damage

Catastrophic Optical-damage in High-power, Broad-area Laser-diodes

2009 ◽  
Vol 1195 ◽  
Author(s):  
Aland K. Chin ◽  
Rick K. Bertaska ◽  
Martin A. Jaspan ◽  
Allen M. Flusberg ◽  
Steve D. Swartz ◽  
...  
Keyword(s):  
Cavity Length ◽  
Ring Cavity ◽  
Laser Diodes ◽  
Optical Power ◽  
Transverse Mode ◽  
Broad Area ◽  
Optical Damage ◽  
Double Heterostructure ◽  
Transverse Modes ◽  
Optical Power Density

AbstractA detailed description of the phenomenon of catastrophic optical-damage (COD) in short (380μm cavity-length), 12μm aperture, proton-bombarded, double-heterostructure laser-diodes with uncoated facets was first presented in 1974. In these devices, COD generally initiates at the facets due to high optical-power density and propagate along transverse-mode filaments. To achieve reliable operation at high optical-power, broad-area laser-diodes have evolved to long (several-millimeter cavity-length), wide-aperture (50-200μm), dielectric-defined, broadened-waveguide, separate-confinement, double-heterostructure, quantum-well laser-diodes with coated, passivated facets. COD in these devices involve both transverse modes and ring-cavity modes.

Erratum: Catastrophic optical damage in GaAlAs/GaAs laser diodes

1987 ◽  
Vol 134 (2) ◽  
pp. 135
Author(s):  
W. Both ◽  
G. Erbert ◽  
A. Klehr ◽  
R. Rimpler ◽  
G. Stadermann ◽  
...  
Keyword(s):  
Laser Diodes ◽  
Optical Damage ◽  
Gaas Laser
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