Patent ID: 6208778
Filing Date: 2001-03-27
Classification: G02B

Abstract:
A crosstalk-inhibiting arrangement for a switching cell in which an optical signal from an input waveguide is alternately directed to first and second output waveguides depending upon a presence or absence of fluid in a first region between said input waveguide and said first output waveguide, said first region being a portion of a fluid-manipulable first switching mechanism, said arrangement comprising:an intermediate waveguide and a fluid-manipulable second switching mechanism positioned to form an optical path from said input waveguide to said second output waveguide when said first region has an absence of said fluid, said intermediate waveguide extending from said first region at an angle in the range of 95 degrees to 150 degrees relative to said input waveguide, said second switching mechanism being positioned such that a second region is formed between said intermediate waveguide and said second output waveguide.