Optical signal processing
An optical signal and processor technology, which is applied in the field of optical signal processing and can solve the problems that fast dynamics and reconfigurability cannot meet performance.
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[0012] reference figure 1 , An optical signal processor 1 is shown, which includes an optical waveguide loop 3 and first and second nonlinear phase modulator loops 4 and 5 coupled to the optical waveguide loop 3. Each phase modulator loop includes highly nonlinear fiber (HNLF) sections 6 and 7 and corresponding input ports 8 and 9.
[0013] Each phase modulator loop 4 and 5 includes a polarization maintaining (PM) nonlinear optical loop mirror (NOLM) based on cross-phase modulation (XPM) (in figure 2 N on the right (k) To indicate that k=1, 2) are connected by three fiber spans 17, 18, and 19, and corresponding couplers 15 and 16 are provided for each phase modulator (as shown in C(2) ρ)). Generally, if D is the fiber span, then i=1, 2, 3, where Is the length of the i-th fiber. The optical splitter 20 feeds the input signal 14 to the processor 1. The optical splitter 20 has two input ports 20a and 20b to generate two input signals into the corresponding fiber spans 17 and 18,...
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