Graduate Thesis Or Dissertation

 

Wide stripe, high power diode lasers Public Deposited

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https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/6m311s70h

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  • Typical power outputs of commercially available diode lasers are on the order of 5 milliwatts. This thesis discusses the growth, processing and fabrication of high power (lOO's of milliwatts) diode lasers. Devices were grown by Molecular Beam Epitaxy (MBE) and by Metal Organic Chemical Vapor Deposition (MOCVD). The MOCVD diode lasers demonstrated room temperature laser operation with peak output powers of 450 mW/facet pulsed mode. The MBE diode lasers demonstrated room temperature pulsed laser operation of 110 mW/facet. The dynamics of the quantum well structure were studied. The carrier concentration, threshold current density and coatings were modeled. It was demonstrated through transmission line analogies that, depending on the thickness of the high reflective coating, the result would be a high output power diode laser or a superluminescent device. The MBE device was coated with a high power coating resulting in a peak power of 450 mW. The MOCVD device was used to study the superluminescence resulting from specific coatings.
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