Waveguide optical coding device for optical ADC
An optical encoding and waveguide technology, applied in the optical field, achieves the effects of improving stability and reliability, reducing costs, and simplifying the design
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[0029] Below in conjunction with accompanying drawing, further illustrate the present invention with 4 encoders.
[0030] like figure 1 , 2 As shown, the waveguide type 4-bit optical encoding device for optical ADC provided by the present invention is composed of an upper cladding material, a lower cladding material and a core material; the upper cladding material is UV-cured epoxy NOA61, and the refractive rate n 1 =1.55, the lower cladding material is UV curing epoxy UV15, the refractive index is n 3 =1.50, the core material is polysulfone, the refractive index n 2 = 1.67, the thickness, width and ridge height of the core layer are set as d=1.0 μm, W=5 μm, h=0.8 μm; the core layer material is a ridge structure with 15 longitudinal channels connected to 15 input ports respectively waveguide and 4 transverse waveguides respectively connected to 4 output ports; among the 15 longitudinal waveguides, from left to right are the first longitudinal waveguide, the second longitud...
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