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Opt Lett. 2002 May 1;27(9):686-8.

Optical fiber long-period gratings with Langmuir-Blodgett thin-film overlays.


An overlay material was deposited by the Langmuir-Blodgett technique onto a single-mode optical fiber containing a long-period grating. The long-period grating exhibits characteristic attenuation bands in its transmission spectrum whose central wavelengths were observed to depend on the optical thickness of the overlay material, even for materials that have a refractive index higher than that of silica.


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