Fiber-optic magnetic sensors based on magnetostriction yield 1/f-type noise, which has typically been limiting the sensors’ resolution at frequencies below 1 Hz. To study the origin of this noise, we devised a new experimental technique that discriminates between the transducer self-noise and various other noise sources and determines under which conditions the limiting noise source is the material’s self-noise.
© 1994 Optical Society of America
Original Manuscript: July 7, 1994
Published: November 1, 1994
D. M. Dagenais and F. Bucholtz, "Measurement and origin of magnetostrictive noise limitation in magnetic fiber-optic sensors," Opt. Lett. 19, 1699-1701 (1994)