Two Faraday elements are configured with two linear retardation elements such that the variations in their individual rotations due to wavelength and temperature changes are compensated for. Wideband isolation between 1250 and 1650 nm is demonstrated using 45° and 90° yttrium iron garnet elements and two 45° right-angle glass prisms (n ~ 1.73) that produce approximately 60° linear retardations on total internal reflection.
© 1989 Optical Society of America
Original Manuscript: March 10, 1989
Manuscript Accepted: August 22, 1989
Published: November 1, 1989
Carl F. Buhrer, "Wideband temperature-compensated optical isolator or circulator configuration using two Faraday elements," Opt. Lett. 14, 1180-1182 (1989)