Patent ID: 6351331
Filing Date: 2002-02-26
Classification: G02F,H01F

Abstract:
A Faraday rotator comprising a garnet crystal represented by the following compositional formula and having a lattice constant of 12.470Â±0.013 Ã¥:(Tb1âˆ’(a+b+c)LnaBibM1c)3(Fe1âˆ’dM2d)5O12 in the formula, Ln is an element selected from the group consisting of rare earth elements other than Tb; M1 represents an element selected from the group consisting of Ca, Mg and Sr; M2 is an element selected from the group consisting of Al, Ti, Si and Ge; and a to d are numerals satisfying the following relations: 0&lE;a&lE;0.5, 0