Monolithic Integration of Collimating Fresnel Lens for Beam Quality Enhancement in Tapered High Power Laser Diode

• Main Authors: Lau, F. K., TEE, Chyng Wen, Zhao, X., Williams, K. A., Penty, R. V., White, I. H., Calligaro, M., Lecomte, M., Parillaud, O., Michel, N., Krakowski, M.
• Format: text
• Language: English
• Published: Institutional Knowledge at Singapore Management University 2006
• Subjects: Etching; Fresnel lenses; Ion beams; Laser resonators; Lasers; Lens design; Lenses; Near field; Semiconductor lasers; Physical Sciences and Mathematics
• Online Access: https://ink.library.smu.edu.sg/lkcsb_research/3333; https://ink.library.smu.edu.sg/context/lkcsb_research/article/4332/viewcontent/Monolithic_integration_2006.pdf
• Institution: Singapore Management University

We demonstrate, for the first time, a monolithic integrated lens for wide aperture gain-guided tapered laser beam quality enhancement by compensating the quadratic phase curvature. The 3mm long tapered laser with an output aperture of 170μm adopted in this design consists of a gain-guided tapered se...