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    • 5. 发明授权
    • Apparatus, system and method for a tunable optical filter
    • 用于可调谐光学滤波器的装置,系统和方法
    • US07693364B2
    • 2010-04-06
    • US11857892
    • 2007-09-19
    • Giovanni BarbarossaMing LiSong Peng
    • Giovanni BarbarossaMing LiSong Peng
    • G02B6/28H04J14/02
    • G02B6/29382G02B6/272G02B6/2766G02B6/29361G02B6/29362G02B6/29395G02F1/313G02F2202/40G02F2203/05
    • A tunable optical filter comprises an optical switch having a single first optical port and a plurality of second optical ports; a plurality of band pass filters, each one of the band pass filters optically coupled to a respective second optical port; and an optical multiplexer having a plurality of inputs and a single output, each input optically coupled to a respective band pass filter, wherein the optical switch delivers a plurality of optical channels to a selected one of the band pass filters, the selected band pass filter transmitting a single selected optical channel to an input of the optical multiplexer. Alternatively, the multiplexer may be substituted by a second optical switch. Optionally, the band pass filters may reflect other channels back to the plurality of second optical ports.
    • 可调光滤波器包括具有单个第一光端口和多个第二光端口的光开关; 多个带通滤波器,每个带通滤波器光耦合到相应的第二光端口; 以及具有多个输入和单个输出的光学多路复用器,每个输入光学耦合到相应的带通滤波器,其中所述光学开关将多个光学信道传送到所选择的带通滤波器中的一个,所选择的带通滤波器 将单个选择的光信道发送到光复用器的输入。 或者,多路复用器可以由第二光学开关代替。 可选地,带通滤波器可以将其它信道反射回多个第二光端口。