A translucent sintered body, a faraday rotator made of this sintered body, and an optical isolator

摘要

A translucent sintered body having the following basic composition:
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ Ca (1-x) Yb x F (2+x) ,
where 0.4 ‰¦ x ‰¦ 1.0,
or preferably
Ca (1-x-y) Yb x R y F (2+x+y) , 0.4 ‰¦ x ‰¦ 1.0, 0 ‰¦ y ‰¦ 0.5 wherein R is at least one element selected from Ce, Pr, Sm, Eu and Y.