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专利名称：Apparatus for thermal compensation of an
arrayed waveguide grating
发明人：Kjetil Johannessen申请号：US10205275申请日：20020725公开号：US06954566B2公开日：20051011
专利附图：
摘要：An arrayed waveguide grating including a waveguide array extending betweentwo free propagation regions is disclosed. One free propagation region is coupled to aninput waveguide, and the other free propagation region is coupled to output waveguides.
In an example, the input-side free propagation region has two sections that are moveablerelative to one another. Movement is achieved by using, for example, a thermallyresponsive actuator that moves the input waveguide a desired distance to compensatefor a temperature change. An arm formed of a low thermal expansion coefficient metalmay be used as a thermally responsive actuator moving a substrate. In another example,both the input side and the output side free propagation regions have sections moveablerelative to one another and, therefore, less movement is required to correct for thermalvariations. An N×N arrayed waveguide grating may also be formed.
申请人：Kjetil Johannessen
地址：Trondheim NO
国籍：NO
代理机构：Marshall, Gerstein & Borun LLP
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