Diode laser degradation mechanisms: A review

Waters, R. G.

doi:10.1016/0079-6727(91)90004-2

Cited by 72 publications

(26 citation statements)

References 62 publications

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“…High power lasers are increasingly important optoelectronic devices finding uses ranging from communications and data storage to medical applications [1]. For many applications, output powers of several hundred milliwatts are required, frequently giving rise to power densities at the laser facets ~1-10 MW cm -2 [2].…”

Section: Introductionmentioning

confidence: 99%

Pressure induced wavelength dependence of catastrophic optical damage in 980 nm semiconductor diode lasers

Lock

Sweeney

Adams

2004

Physica Status Solidi (b)

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Catastrophic Optical Damage (COD) occurs when the facet of high power semiconductor lasers melt due to extreme self-absorption. COD tends to occur in short wavelength lasers but seems to be less of a problem in long wavelength devices. In this paper, we use hydrostatic pressure as a means of changing the wavelength in order to investigate the dependence of COD on emission wavelength. We find that the recorded output power threshold at the onset of COD decreases with increasing pressure (decreasing wavelength). Our measurements further reveal that this threshold is closely correlated with the increase in optical confinement factor with pressure which suggests that the wavelength dependence may largely be attributed to the change in mode size with operating wavelength.

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Section: Introductionmentioning

confidence: 99%

Pressure induced wavelength dependence of catastrophic optical damage in 980 nm semiconductor diode lasers

Lock

Sweeney

Adams

2004

Physica Status Solidi (b)

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“…The sudden degradation occurs when the laser diode abruptly ends lasing after many hours of operation [9]. The degradation mode is achieved by the destruction of the active region of the laser following a thermal runaway process.…”

Section: Defects In the Laser Structurementioning

confidence: 99%

“…The degradation mode is achieved by the destruction of the active region of the laser following a thermal runaway process. In order to raise a scenario of the sudden degradation one needs to identify the defects produced during the degradation, and then to establish the physical mechanisms responsible for the formation of those defects, and their subsequent propagation forming the characteristic dark line defects (DLDs) associated with the catastrophic degradation [4,9].…”

Section: Defects In the Laser Structurementioning

confidence: 99%

Catastrophic optical damage of high power InGaAs/AlGaAs laser diodes

Souto¹,

Pura²,

Torres³

et al. 2016

Microelectronics Reliability

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The defects generated by the catastrophic optical degradation (COD) of high power laser diodes have been examined using cathodoluminescence (CL). Discontinuous dark lines that correspond to different levels of damage have been observed along the ridge. Finite element methods have been applied to solve a physical model for the degradation of the diodes that explicitly considers the thermal and mechanical properties of the laser structure. According to this model, the COD is triggered by a local temperature enhancement that gives rise to thermal stresses leading to the generation of dislocations. Damage is initially localized in the QW, and when it propagates to the waveguide layers the laser ends its life.

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“…As a rule of thumb, the areas with dark contrast adopt the form of dark lines, the so-called DLDs [14], which are clusters of dislocations.…”

Section: Experimental Characterization Of Degraded Devicesmentioning

confidence: 99%

Nanoscale effects on the thermal and mechanical properties of AlGaAs/GaAs quantum well laser diodes: influence on the catastrophic optical damage

Souto¹,

Pura²,

Jiménez³

2017

J. Phys. D: Appl. Phys.

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Diode laser degradation mechanisms: A review

Cited by 72 publications

References 62 publications

Pressure induced wavelength dependence of catastrophic optical damage in 980 nm semiconductor diode lasers

Pressure induced wavelength dependence of catastrophic optical damage in 980 nm semiconductor diode lasers

Catastrophic optical damage of high power InGaAs/AlGaAs laser diodes

Nanoscale effects on the thermal and mechanical properties of AlGaAs/GaAs quantum well laser diodes: influence on the catastrophic optical damage

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