Adjustable optical dispersion compensator based on double-ring resonator
A dispersion compensator and dispersion compensation technology are applied in the field of optical information, which can solve the problems of difficulty in processing and manufacturing dispersion compensators, and achieve the effects of improving dispersion compensation range, small volume, and large dispersion compensation range.
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[0031] A specific embodiment of the structure of the optical dispersion compensator: the structure of the dispersion compensator is composed of an input waveguide, a coupling waveguide, an output waveguide, a fixed ring waveguide, and an adjustable ring waveguide. The specific structure is shown in Figure 2. The input waveguide is connected to the coupling waveguide and the output waveguide in turn, and the ring waveguide is connected to the coupling waveguide as an optical resonant cavity. The adjustable ring waveguide realizes the adjustment of the effective refractive index of the fixed ring waveguide, and then realizes the adjustment of the dispersion compensation range. The Gaussian modulated wave with a central wavelength of 1520nm and a certain spectral width is input from the input waveguide shown in Figure 2, and is transmitted through the coupling waveguide and the output waveguide. When passing through the coupling waveguide, part of the input wave that satisfies the ...
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