Experimental characterization of filamentation phenomena in pressure-mounted diode laser bars
Laser diodes are important to our modern society and have many interesting appli- cations. They however still have some aspects to be studied, to improve their performance and reliability. In this work, the emission of two diode laser bars, each with different configurations and from different manuf...
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| Tipo de recurso: | tesis de maestría |
| Fecha de publicación: | 2024 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/423577 |
| Acceso en línea: | https://hdl.handle.net/2117/423577 |
| Access Level: | acceso abierto |
| Palabra clave: | Photonics Optoelectronics Optical measurements Lasers Filamentation Non-linear effects Broad area diode laser Pressure-mounted diode laser bars Fotònica Optoelectrònica Òptica -- Mesuraments Làsers Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fotònica |
| Sumario: | Laser diodes are important to our modern society and have many interesting appli- cations. They however still have some aspects to be studied, to improve their performance and reliability. In this work, the emission of two diode laser bars, each with different configurations and from different manufacturers, was studied under varying pressure and current conditions. The primary focus was on understanding how filamentation-caused measurable characteristics evolve under different conditions when using MONOCROM's packing technology. An optical system designed using Zemax and calibrated for accurate near-field measurements is used to measure the intensity profiles that will be later analyzed with MATLAB. Data analysis revealed that the number of filaments and their width, generally increase with higher currents. Mounting forces, also influence filamentation, with varying trends for the different bars and analyzed pa- rameters. It is also found that each emitter within a bar shows unique responses to the applied conditions. |
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