LASER AND LIGHT GUIDE SYSTEM AND MANUFACTURING METHOD THEREOF

• Main Authors: PERLIN, Piotr, GIBASIEWICZ, Krzysztof, STANCZYK, Szymon, NAJDA, Stephen, SABA, Kiran, KAFAR, Anna
• Format: Patent
• Language: English
• Published: 13.02.2025
• Subjects: BASIC ELECTRIC ELEMENTS; DEVICES USING STIMULATED EMISSION; ELECTRICITY

The subject of the invention is the method for manufacturing a laser and light guide system comprising the following steps: a gallium nitride substrate is formed, after which regions with increased disorientation in relation to their surroundings are defined on the gallium nitride substrate, a bottom cladding layer is deposited, a bottom light guide layer is deposited, a light-emitting layer is deposited, a non-doped upper light guide layer is deposited, an electron blocking layer is deposited, an upper light guide layer is deposited, an upper cladding layer is deposited, an subcontact layer is deposited, a spatial structure of a light guide in a shape of a ridge is formed, an aperture separating the laser and the light guide is formed, forming one of the laser mirrors, wherein the light guide is formed out of the same layers as the laser structure, whereas the quantum wells in the light guide region comprise at least 3.5 mol % less indium compared to the laser region, and the optical absorption of laser light in the light guide is lower than 12 cm−1. Another subject of the invention is a laser and light guide system.