A single-mode fiber Faraday rotator is proposed and fabricated by using a paramagnetic glass with a high Verdet constant. The Faraday rotator is a W-fiber with three layers, namely, core, inner cladding, and outer cladding. To make the fiber FR-5 is used as the starting material. The Verdet constant of the rotator is -0.25 min/Oe-cm at a 0.633-µm wavelength. The rotator can be used in a fiber isolator.
© 1984 Optical Society of America
Kazuo Shiraishi, Satoshi Sugaya, and Shojiro Kawakami, "Fiber Faraday rotator," Appl. Opt. 23, 1103-1106 (1984)