Diamond-like carbon films deposited onto optical fibres and waveguides: application in chemical sensing

Mateusz Śmietana; Jan Szmidt; Michael L. Korwin-Pawlowski; Wojtek J. Bock

doi:10.1117/12.661980

22 April 2006 Diamond-like carbon films deposited onto optical fibres and waveguides: application in chemical sensing

Mateusz Śmietana, Jan Szmidt, Michael L. Korwin-Pawlowski, Wojtek J. Bock

Proceedings Volume 6189, Optical Sensing II; 61890T (2006) https://doi.org/10.1117/12.661980
Event: SPIE Photonics Europe, 2006, Strasbourg, France

Abstract

The paper presents the diamond-like carbon (DLC) film as a coating for multimode optical fibre, single-mode optical fibre with long-period grating (LPG) and planar optical waveguides. Thin DLC coatings significantly change sensing elements' properties. Constructed systems can be very sensitive to concentration changes of several chemical solutions (e.g. sodium chloride, calcium chloride and ethylene glycol) due to changes of refractive index of the solutions. The influence of Radio Frequency Plasma Chemical Vapour Deposition (RF PCVD) process parameters on sensitivity is discussed. A novel integrated planar waveguide sensing system with DLC film is presented. The films were analysed morphologically and optically.

Citation Download Citation

Mateusz Śmietana, Jan Szmidt, Michael L. Korwin-Pawlowski, and Wojtek J. Bock "Diamond-like carbon films deposited onto optical fibres and waveguides: application in chemical sensing", Proc. SPIE 6189, Optical Sensing II, 61890T (22 April 2006); https://doi.org/10.1117/12.661980

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