Fibre coupler for creation of high temperature-resistant interferometers and high temperature-resistant interferometer

Abstract

Fibre coupler for creation of optical fibre-containing interferometers (sensors), with at least two parallel optical fibres placed in an enclosure characterized in that each of the optical fibres consists of at least three alternately placed light-conductive sections with different coatings, at least one (1) of which has a melting point above 200° C., and the two corresponding sections (2) with coating other than with a melting point above 200° C. are coupled using any known method. Interferometer containing above described fibre couplers, where the fibre couplers are interconnected by at least two optical fibre sections (8, 9) with a high temperature-resistant coating.

Dependencies are inferred from the claim text.