Inphotech Sp. Z O.o.

Inphotech Spolka Z Ograniczona Odpowiedzialnoscia

Sds Optic Spolka Akcyjna

Dawid Budnicki

Tomasz Nasilowski

Marek Napierala

Lukasz Szostkiewicz

Karol Wysokinski

Lukasz Ostrowski

Michal Murawski

Zbigniew Holdynski

Janusz Fidelus

Anna Pytel

Mariusz Makara

Krzysztof Grzegorz Poturaj

Marcin Staniszewski

Ana Pytel

Krzysztof Wilczynski

Anna Makowska

Magdalena Staniszewska

Zbigniew Holdyñski

Krzysztof Poturaj

Disclosed is an interferometric fiber optic sensor for detecting chemical substances. A light source a detector are connected to a light dividing element in an optical path with an optical fiber segment. The optical fiber segment is further optically coupled with a measuring element across a residual cavity. The measuring element further has a face adapted to be exposed to a test substance that may contain a chemical substance to be detected. The optical fiber segment and the measuring element can be held together so that there is only the residual cavity between them. The optical fiber segment is contained, at least along part of its length, within a capillary. A first end part of the capillary is joined with the measuring element while another portion of the capillary is joined or clenched on the optical fiber segment, so that the capillary, the optical fiber segment and the measuring element together form a fiber optic measuring probe as a part of the optical path with the light source and detector.

Interferometric fiber optic sensor, fiber optic probe and method of detection of chemical substance

A waveguide interferometer includes a multicore fiber used a multicore waveguide, where the multicore waveguide includes a coupler section formed by tapering a portion of the multicore waveguide so that one core though which a light source is fed is optically coupled to another core that is terminated differently that the core into which the source signal is provided. The terminations respond differently upon being exposed to an environmental condition or substance, and the difference in response to the environmental condition or substance results in a shift in interference of the light reflected back through the multicore waveguide, which is detected with a detector on the same side of the multicore waveguide as the light source.

Waveguide interferometer

Growing community of inventors

Sanniki, Poland

Dawid Budnicki