Abstract

Faraday rotation in an optical fiber is normally quenched¹ by the presence of linear birefringence, either inherent to the fiber or induced by bending. However, this effect can be largely overcome by alternating the sense of the magnetic field along the length of the fiber in half-beat-length increments.^1-3 Since the beat length depends on wavelength, this leads to tuned devices providing an efficient inter- action over a narrow range of wavelengths.

© 1983 Optical Society of America