OPTICAL WAVEGUIDE WITH NANO-CHANNEL AND OPTOFLUIDIC SENSOR WITH SUCH AN OPTICAL WAVEGUIDE Russian patent published in 2018 - IPC G02B6/122 

FIELD: measurement.

SUBSTANCE: group of inventions refers to optical waveguide. Optical waveguide comprises first and second substrates including first and second optical guide structures embedded flush with the surface of the first and second substrates. Moreover, these substrates are assembled together by superimposing one another on their surfaces in such a way that the two specified optical guide structures face one another and are extended in the same direction, wherein between the first and second optical guiding structures a channel is formed along this direction, wherein the larger channel size in the cross section is oriented substantially parallel to said surfaces of the first and second substrates, and said channel is adapted to receive the fluid. Optical sensor for fluid analysis comprises an optical waveguide, two tanks connected to one of the tanks means for the intake of fluid into the channel and connected to another tank means for the release of the fluid from the channel.

EFFECT: technical result consists in providing an optical waveguide with a low loss of diffusion, minimal dimensions and increased reliability.

17 cl, 7 dwg