M Chi N Chi K optical switch array suitable to whole optical network and its method
An optical switch array and all-optical network technology, which is applied in the field of integrated optics, can solve the problems of fixed structure, high cost, inconvenient optical amplification, etc., and achieve the effect of small device size and low loss
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[0029] exist figure 1 Among them, In1 to In4 are input optical waveguides, where In2 and In3 are not shown, Out1 to Out4 are the total output optical waveguides of the device, and each input optical waveguide of In1 to In4 has four different wavelengths of λ1, λ2, λ3 and λ4 optical channel. U11 is a 1×(4+1) optical switch array corresponding to the light wave with a wavelength of λ1 in the first input optical waveguide In1, which is composed of five-stage optical switches S1, S2, S3, S4, and S5. S1 uses an optical switch based on a wavelength selector, which takes out the light wave with a wavelength of λ1 from the first input optical waveguide In1, and the subsequent four stages of U11, namely S2 to S5, use an optical switch based on a directional coupler. The optical switches at all levels in U11 are connected in series, that is, the output optical waveguide of the optical switch Sj with the serial number j is directly connected to the input optical waveguide of the optical...
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