Se fabricaron y se calificaron vidrios ternarios PbO-Bi2O3-B2O3 (PBB) de óxidos metálicos muy pesados (60-100mol%). Con una sencilla y simple instalación magnética de corriente continua se midieron las constantes de Verdet de los vidrios de PBB de 0,0923-0,1664min/Gcm, a longitudes de onda de 633nm. Se estudiaron los efectos Faraday en los vidrios con una sustitución de PbO por Bi2O3. PbO-Bi2O3-B2O3=50-40-10mol% mostró una buena estabilidad térmica, una constante de Verdet elevada (0,1503min/Gcm) y un buen factor de mérito (0,071). Sobre la base de este vidrio se construyó un prototipo de sensor de corriente magneto-óptico y se evaluó su sensibilidad a diferentes corrientes para llegar a 8,31nW/A.
High heavy metal oxides (60–100mol.%) ternary PbO–Bi2O3–B2O3 (PBB) glasses were fabricated and characterized. Using a homemade single lightway DC magnetic setup, Verdet constants of PBB glasses were measured to be 0.0923–0.1664min/Gcm at 633nm wavelengths. Glasses with substitution of PbO by Bi2O3 were studied in terms of their Faraday effects. PbO–Bi2O3–B2O3=50–40–10mol.% exhibited good thermal stability, high Verdet constant (0.1503min/Gcm) and good figure of merit (0.071). Based on this glass, a magneto optical current sensor prototype was constructed and its sensitivity at different currents was evaluated to be 8.31nW/A.
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