High-power, high-brightness, high-reliability laser diodes emitting at 800-1000 nm

Yanson, D.A.; Marsh, J.H.; Najda, Stephen P.; McDougall, S.D.; Fadli, Hassan; Masterton, Graeme; Qiu, Bocang; Kowalski, O.P.; Bacchin, G.; McKinnon, Gordon

doi:10.1117/12.699038

Cited by 9 publications

(3 citation statements)

References 3 publications

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“…We have adapted the LUNAM broad-area laser design [2,3] to a tapered geometry as illustrated in Fig.2. The device incorporates a modified ridge-waveguide structure with a QWI LUNAM slab at the front facet.…”

Section: High-power Single Emittermentioning

confidence: 99%

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High-power laser arrays with 100% fill factor emission facet

et al. 2008

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Novel types of laser diode array with a 100% filling factor at the emission facet are reported. The arrays utilize both parallel and tapered cavity emitters that are connected via a common Laterally Unconfined Non-Absorbing Mirror (LUNAM) defined with quantum-well intermixing technology at 808 nm wavelength. Two LUNAM array types are considered: incoherent (weakly coupled) and coherent (diffraction coupled).Incoherent LUNAM arrays benefit from a reduced power density at the facet, improving reliability, and a near-uniform intensity distribution across the array aperture. Stacked laser diode arrays built with LUNAM bars deliver 950 W power under QCW operation with <5% degradation at 1.9×10 8 shots.Novel coherent arrays are realized using a monolithically integrated LUNAM Talbot cavity. The devices produce a single-lobed horizontal far-field pattern over a limited current range with <10% slope efficiency penalty compared to an uncoupled case. The LUNAM arrays are promising candidates for high-power, high-brightness and high-reliability operation.

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Section: High-power Single Emittermentioning

confidence: 99%

“…The performance results of the Laterally Unconfined NAM (LUNAM) single emitters were reported in Refs. [2,3].…”

Section: Introductionmentioning

confidence: 98%

High-power laser arrays with 100% fill factor emission facet

et al. 2008

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“…This allows for adequate heat-sinking, whilst simultaneously facilitating optimum optical access to the laser facet. This is required for optical alignment, for example to collimating optics, and also eliminates bonding issues such as solder overspill at the facets (Yanson et al, 2007).…”

Section: Monolithic Laser Array Developmentmentioning

confidence: 99%