Measurements of Verdet Constant in Heavy Metal Oxide Glasses for Magneto-Optic Fiber Current Sensors
Optical materials(2022)
摘要
We investigate the Verdet constant in selected heavy metal oxide glasses with good rheological properties for multiple thermal processing. The measurement results prove that lead-bismuth-gallate and tellurite glasses have Verdet constant of 69.33 rad T−1m−1 and 54.91 rad T−1m−1, respectively, at a wavelength of 475 nm. These magneto-optic responses are higher than in the case of pure silica or other commercially available soft glasses used in optical fiber development. The investigated glasses are potential candidates for all-fiber optical current sensors with enhanced sensitivity and resolution.
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关键词
Faraday effect,Verdet constant,Magneto-optic sensors,Magneto-optic materials,Soft glasses
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