Metal-coated fiber sensor for laser radiation power measurements

Ivan Khramov; Renat Shaidullin; Oleg Ryabushkin

doi:10.1117/1.OE.58.7.072012

7 May 2019 Metal-coated fiber sensor for laser radiation power measurements

Ivan Khramov, Renat Shaidullin, Oleg Ryabushkin

Author Affiliations +

Optical Engineering, Vol. 58, Issue 7, 072012 (May 2019). https://doi.org/10.1117/1.OE.58.7.072012

Abstract

A technique for measurements of output power of fiber lasers using a metal-coated fiber sensor is proposed. Optical radiation transmitting through the core of a copper-coated silica fiber is partially scattered and, therefore, absorbed in the copper layer. The change of an electrical resistance of the metal coating induced by its heating is measured. This technique can be used for the real-time measurement of output radiation power of fiber laser sources. The measurement range of optical power can be controlled by changing the bend curve radius of the metal-coated fiber. Optical scattering coefficients of the metal-coated fiber core were determined using the proposed theoretical model of the fiber sensor heating.

Citation Download Citation

Ivan Khramov, Renat Shaidullin, and Oleg Ryabushkin "Metal-coated fiber sensor for laser radiation power measurements," Optical Engineering 58(7), 072012 (7 May 2019). https://doi.org/10.1117/1.OE.58.7.072012

Received: 31 October 2018; Accepted: 15 April 2019; Published: 7 May 2019

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