In an arrangement substantially like an optical isolator, appropriate choice of the composition of the magneto-optic element can result in a variable optical attenuator. The composition is selected to vary in the direction of light propagation, and also is selected such that the magneto-optic element comprises a compensation wall. The compensation wall is movable in response to a change in the temperature of the magneto-optic element, whereby the attenuation of the device is changed.
申请公布号
EP1050774(A3)
申请公布日期
2002.07.17
申请号
EP20000303261
申请日期
2000.04.18
申请人
AGERE SYSTEMS OPTOELECTRONICS GUARDIAN CORPORATION
发明人
ABBOTT, ROBERT RALPH;BERKSTRESSER, GEORGE WAYNE;BRANDLE, CHARLES DAVID, JR.;FRATELLO, VINCENT JEROME;LICHT, STEVEN JOY