Wavelength division multiplexing and demultiplexing device
A demultiplexer and wavelength division multiplexing technology, which is applied in the direction of instruments, optical waveguides, light guides, etc., can solve the problems of poor product uniformity, large product loss, and multiple structures, and achieve low product cost, low insertion loss, good uniformity
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example 1
[0063] Example 1: A kind of wavelength division multiplexing and demultiplexer manufacturing method, see figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 shown, including the following steps:
[0064] Step (1-1), making the substrate layer 11, the lower cladding layer 5 and the core layer 12;
[0065] First, the substrate material is used to make the substrate layer with the upper surface as a horizontal plane, and then the cladding material is deposited on the upper surface of the substrate layer to make the lower cladding layer with the upper surface as the horizontal plane, and then the core layer material is used to deposit on the upper surface of the lower cladding layer Make the core layer with the upper surface as a horizontal plane.
[0066] Step (1-2), making a waveguide optical path on the core layer;
[0067] Step (1-2-1), if the number of sub-signal lights 3 contained in the total signal light 13 input on the core layer is N, and N is a p...
example 2
[0082] Example 2: A kind of wavelength division multiplexing and demultiplexer manufacturing method, see figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 7 , Figure 8 , Figure 9 , Figure 10 As shown, the difference between Example 2 and Example 1 is that it also includes the following steps:
[0083] Step (2-1), making auxiliary groove 15;
[0084] After making the upper cladding layer, use photolithography and etching to set an auxiliary groove with the bottom of the groove falling on the lower cladding layer in the upper cladding layer on the rear side of the front end of each reflective waveguide optical path on the upper cladding layer , the distance between each auxiliary groove and the corresponding reflective waveguide optical path is 2-6 μm, the distance between each auxiliary groove and the corresponding filter is 2-16 μm, and the length of each auxiliary groove is the corresponding filter Integer multiples of the half-wavelength of the f...
example 3
[0089] Example 3: A manufacturing method of wavelength division multiplexing and demultiplexing, see figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 11 , Figure 12 As shown, the difference between example 3 and example 1 is that it also includes the following steps:
[0090] In step (1-4), the filter is first placed in the filter gap, and the reflective surface of the filter is perpendicular to the angle bisector of the angle between the two reflection waveguide light paths, and then UV ultraviolet light is used to Curing glue fixes the filter in the filter notch. In the filter gap between the filter and the filter waveguide optical path, a convex lens 9 with one side being a plane and the other side being an arc-shaped curved surface is fixed with UV ultraviolet curing glue, and the plane of the convex lens is arranged facing the filter, and the arc-shaped curved surface of the convex lens faces The optical path of the filter waveguide is arranged, ...
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