Magnetic quasi-phase matching all-fiber isolator

Abstract

We have experimentally demonstrated an all-fiber optical isolator with 20dB isolation. The result shows that the quasi-phase matching technique via a meter-long magnet array is highly feasible to generate more than 45 degrees of Faraday rotation in the fibers. The all-fiber isolator can also be temperature tuned to operate between 1048 nm and 1066 nm wavelength. Copyright © 2010 C. A. Lu and G. T. Moore.