A wavelength selective switch
A wavelength selective switch and port technology, which is applied in the coupling of optical waveguide, optical guide, optics, etc., can solve the problems of unbalanced channel signal loss, difficulty in applying to the industrial field, large passband gain jitter, etc., to solve crosstalk, Avoid the effect of high economic cost and technical difficulty
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[0043] see figure 1 , the wavelength selective switch of the present invention includes input fiber port 101 and output fiber port 102, fiber collimator array 103, polarization control unit 104, beam shaping system 105, dispersion unit 106, achromatic processing unit 107 and miniature reflective switch engine 108 ;
[0044] The input fiber port 101 is externally connected to an input fiber, and the output fiber port 102 is connected to an external output fiber. The input fiber port 101 and the output fiber port 102 are respectively connected to the fiber collimator array 103, and the input beam passes through the input The optical fiber enters the optical fiber collimator array 103 through the input optical fiber port 101;
[0045] The fiber collimator array 103 includes an input fiber collimator and an output fiber collimator, the input beam becomes a Gaussian beam through the input fiber collimator, and then enters the polarization control unit 104;
[0046] The polarizati...
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