Metal coated fiber sensor for laser power measurements with enhanced sensitivity

Ivan Khramov; Renat Shaidullin; Oleg Ryabushkin

doi:10.1117/12.2520770

11 April 2019 Metal coated fiber sensor for laser power measurements with enhanced sensitivity

Ivan Khramov, Renat Shaidullin, Oleg Ryabushkin

Proceedings Volume 11028, Optical Sensors 2019; 110281U (2019) https://doi.org/10.1117/12.2520770
Event: SPIE Optics + Optoelectronics, 2019, Prague, Czech Republic

Abstract

A method for high-sensitive measurement of optical power of fiber lasers is introduced. It is based on application of a metal-coated fiber as a sensor. A part of optical radiation transmitting through the core of a metal-coated silica fiber is scattered and further absorbed in the outer cladding. The change of electrical resistance of the metal coating induced by its heating is measured. This technique can be used for measurements of the output power of fiber laser sources in real time with minor optical losses and beam distortion. The dynamic range can be widely varied by changing the bend curve radius of the sensor fiber. Optical scattering and bend losses were investigated for different geometries of metal-coated fibers. A heating model of metal-coated fibers was developed.

Citation Download Citation

Ivan Khramov, Renat Shaidullin, and Oleg Ryabushkin "Metal coated fiber sensor for laser power measurements with enhanced sensitivity", Proc. SPIE 11028, Optical Sensors 2019, 110281U (11 April 2019); https://doi.org/10.1117/12.2520770

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available