On-chip mode division multiplexing device based on reflection effect
A technology of mode division multiplexing and reflection effect, applied in instruments, optical components, optical waveguides and light guides, etc., can solve the problems of large device size, wavelength sensitivity, and small tolerance of manufacturing errors, and achieve large working bandwidth, simple preparation, Produces effects with high tolerance to errors
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[0025]The preferred embodiments of the present invention will be described in further detail below.
[0026]Such asfigure 1 withfigure 2 As shown, an on-chip mode division multiplexing device based on the reflection effect is shown in this embodiment as on-chip 4 modes, including TE0 mode, TE1 mode, TE2 mode, and TE3 mode. The device includes a base layer 9, an optical waveguide layer 8 and a cladding layer 7. The optical waveguide layer 8 includes 4 single-mode waveguides, a tapered waveguide 5 and a wide multi-mode waveguide 6. The tail ends of the 4 single-mode waveguides The tapered waveguide 5 is connected to different positions on the same side surface, and the tail end of the tapered waveguide 5 is connected to the wide multimode waveguide 6.
[0027]Wherein, the four single-mode waveguides include a first single-mode waveguide 1 (TE0 mode channel), a second single-mode waveguide 2 (TE1 mode channel), a third single-mode waveguide 3 (TE2 mode channel), and a fourth single-mode wave...
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