Abstract
Sensing of magnetic fields using fiber-optic interferometers has been demonstrated recently.1–3 In these devices, a two-arm Mach-Zehnder fiber interferometer is used (Fig. 1). One of the fiber-optic interferometer arms serves as a sensor arm on which some magnetostrictive material is deposited. When exposed to a magnetic field, the magnetostrictive material will stretch the sensor fiber while the reference fiber remains unaffected. As a result, a magnetically induced differential path length change or phase shift is introduced at the output of the interferometer.
© 1984 Optical Society of America
PDF ArticleMore Like This
Kee P. Koo, A. B. Tveten, Anthony Dandridge, and George H. Sigel
TuD3 Optical Fiber Communication Conference (OFC) 1984
F. Bucholtz, K. P. Koo, and George H. Sigel
ThAA4 Optical Fiber Sensors (OFS) 1985
K. A. Arunkumar
THK4 OSA Annual Meeting (FIO) 1985