<p>A variable optical attenuator device is described that comprises a first optical input, a first optical output, a first optical path between the first optical input and the first optical output, and means for moving a shutter across said first optical path. A hollow core waveguide is provided to substantially guide light along the first optical path of the device. The device may also be used to provide an analogue beam splitting or switch function in telecommunication systems and the like.</p>
申请公布号
WO2004083915(A1)
申请公布日期
2004.09.30
申请号
WO2004GB01075
申请日期
2004.03.12
申请人
QINETIQ LIMITED;JENKINS, RICHARD, MICHAEL;MCNIE, MARK, EDWARD;COMBES, DAVID, JOHNATHAN;MCQUILLAN, JAMES
发明人
JENKINS, RICHARD, MICHAEL;MCNIE, MARK, EDWARD;COMBES, DAVID, JOHNATHAN;MCQUILLAN, JAMES