19 February 2003 Laser photochemical modification of polymers and applications in optical information technology
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Proceedings Volume 4830, Third International Symposium on Laser Precision Microfabrication; (2003) https://doi.org/10.1117/12.486584
Event: LAMP 2002: International Congress on Laser Advanced Materials Processing, 2002, Osaka, Japan
Abstract
In this paper some recent results are presented about the photochemical modification of polymers by UV-laser-irradiation which leads to a controllable and local change of the refractive index in the irradiated area of the polymer surface. The exact modification mechanism and its relation to the modified refractive index have been investigated on the basis of PMMA used as a UV-modifiable model polymer with good optical quality. This new UV laser-assisted technology for photochemical modification of the optical properties of UV-modifiable polymers like PMMA or PMMI and their fluorinated derivates permits the fabrication of a wide range of integrated-optical components like strip waveguides, power splitters, (Mach-Zehnder-)interferometers, Bragg gratings and other dispersive structures. These integrated-optical elements are crucial for the realization of dispersive components like WDM or AWG, which have a wide application in the optical sensor and information technology. The optical and functional properties like loss rate or mode propagation of some selected integrated-optical components have been investigated and are discussed in this article.
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Carsten Wochnowski, Carsten Wochnowski, Krassimira Meteva, Krassimira Meteva, Simeon Metev, Simeon Metev, } "Laser photochemical modification of polymers and applications in optical information technology", Proc. SPIE 4830, Third International Symposium on Laser Precision Microfabrication, (19 February 2003); doi: 10.1117/12.486584; https://doi.org/10.1117/12.486584
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