Grating External Cavity Semiconductor Laser with Dis-collimated Optical Feedback

Abstract

Engineering is a broad discipline that applies scientific principles, mathematics, and practical knowledge to design, develop, and maintain structures, machines, systems, and technologies. It includes various branches such as mechanical, electrical, civil, computer, chemical, and biomedical engineering. Engineers play a vital role in solving real-world problems, improving infrastructure, advancing technology, and supporting sustainable development. Their work impacts nearly every aspect of modern life, from transportation and healthcare to energy and communication systems.