Arrays of anamorphic phase-matched Fresnel elements for diode-to-fiber coupling

Autor:	Rino E. Kunz, G. L. Bona, Markus Rossi
Rok vydání:	1995
Předmět:	Diffraction Microlens Coupling Materials science Fabrication business.industry Stray light Materials Science (miscellaneous) Phase (waves) Physics::Optics Photoresist Industrial and Manufacturing Engineering Computer Science::Other Optics Business and International Management business Diode
Zdroj:	Applied Optics. 34:2483
ISSN:	1539-4522 0003-6935
DOI:	10.1364/ao.34.002483
Popis:	A method for designing microlens arrays that inherently takes into account application requirements and fabrication constraints is presented. Elements with numerical apertures of up to 0.5 have been designed and fabricated by laser beam writing in photoresist and replication in plastic material. In a laser-diode-to-fiber array coupling experiment, an overall optical throughput of 60% was achieved. By means of anamorphic microlens arrays, correction of the laser-diode longitudinal astigmatism and circularization of the image-plane irradiance distribution are demonstrated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3da2ddca4b15ee2b32ebfae1bd69aed8 https://doi.org/10.1364/ao.34.002483 Zobrazit plný text záznamu