Thermomechanical issues of high power laser diode catastrophic optical damage
Catastrophic optical damage (COD) of high power laser diodes is a crucial factor limiting
ultra high power lasers. The understanding of the COD process is essential to improve the …
ultra high power lasers. The understanding of the COD process is essential to improve the …
Catastrophic Optical Damage in Semiconductor Lasers: Physics and New Results on InGaN High‐Power Diode Lasers
M Hempel, S Dadgostar, J Jiménez… - physica status solidi …, 2022 - Wiley Online Library
Among the limitations known from semiconductor lasers, catastrophic optical damage (COD)
is perhaps the most spectacular power‐limiting mechanism. Here, absorption and …
is perhaps the most spectacular power‐limiting mechanism. Here, absorption and …
Precise facet temperature distribution of high-power laser diodes: Unpumped window effect
J Michaud, P Del Vecchio, L Béchou… - IEEE Photonics …, 2015 - ieeexplore.ieee.org
A thermoreflectance technique is used to evaluate the temperature variations at the output
facet of high-power GaAs-based laser diodes emitting at 980 nm. Two kinds of diodes with …
facet of high-power GaAs-based laser diodes emitting at 980 nm. Two kinds of diodes with …
Catastrophic optical damage in 808 nm broad area laser diodes: a study of the dark line defect propagation
We present a study of the propagation of dark line defects (DLDs) in catastrophically
damaged 808 nm laser diodes, based on cathodoluminescence (CL) measurements and …
damaged 808 nm laser diodes, based on cathodoluminescence (CL) measurements and …
Kinetics of catastrophic optical damage in GaN-based diode lasers
Catastrophic optical damage (COD) in 450 nm emitting InGaN/GaN diode lasers is artificially
provoked by applying single sub-microsecond current pulses of increasing amplitude …
provoked by applying single sub-microsecond current pulses of increasing amplitude …
CL as a tool for device characterisation: the case of laser diode degradation
S Dadgostar, J Souto, J Jiménez - Nano Express, 2021 - iopscience.iop.org
Cathodoluminescence is a powerful technique for the characterization of semiconductors.
Due to its high spatial resolution, it is emerging as a suitable method for the study of …
Due to its high spatial resolution, it is emerging as a suitable method for the study of …
Long-term aging and quick stress testing of 980-nm single-spatial mode lasers
Single-spatial mode lasers emitting at 980 nm are studied during continuous-wave long-
term operation and ultra-high power short-term operation (stress-test) up to 13.5 W. We find …
term operation and ultra-high power short-term operation (stress-test) up to 13.5 W. We find …
Evaluation of structural and microscopic properties of tetragonal ZrO2 for the facet coating of 980 nm semiconductor laser diodes
ZrO 2 based antireflection coatings are expected to show a high laser induced damage
threshold in the facet coating applications of laser diodes. A single layer of undoped ZrO 2 …
threshold in the facet coating applications of laser diodes. A single layer of undoped ZrO 2 …
Short‐wavelength infrared defect emission as a probe of degradation processes in 980 nm single‐mode diode lasers
Infrared emission from 980‐nm single‐mode high power diode lasers is recorded and
analyzed in the wavelength range from 0.8 to 8.0 μm. A pronounced short‐wavelength …
analyzed in the wavelength range from 0.8 to 8.0 μm. A pronounced short‐wavelength …
High optical strength GaAs-based laser structures
MA Bettiati - Microelectronics Reliability, 2013 - Elsevier
The optical-strength properties of 3S PHOTONICS GaAs-based semiconductor laser
structures are presented. After some general considerations about this robustness issue …
structures are presented. After some general considerations about this robustness issue …