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Advances in OptoElectronics
Volume 2010, Article ID 179813, 5 pages
Research Article

Magnetic Quasi-Phase Matching All-Fiber Isolator

Advanced Electric Laser Branch, Air Force Research Laboratory, 3550 Aberdeen Ave SE, Kirtland Air Force Base, Albuquerque, NM 87117, USA

Received 2 December 2009; Accepted 1 March 2010

Academic Editor: Samir K. Mondal

Copyright © 2010 Chunte A. Lu and Gerald T. Moore. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


We have experimentally demonstrated an all-fiber optical isolator with 20 dB 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.