Multi-frequency microwave signal photon instantaneous frequency measuring device with super-wide frequency range
A microwave signal, frequency range technology, applied in the field of microwave photonics
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[0026] This embodiment is the case of two frequency signals to be measured, assuming that its frequency is f x1 =1GHz and f x2 =25GHz, select SantecTSL-510 tunable laser, set the wavelength to 1550nm (the corresponding frequency is f c =193.41THz) as the optical carrier; 1×2 single-mode fiber coupler (model ZG-A201) splits the upper and lower branches at a ratio of 1:1; the phase modulator is MPZ-LN-40 from Photline, Its bandwidth is 38GHz; the frequency range of the network analyzer is 40M ~ 40GHz; the detection bandwidth of the photodetector is 40GHz; the Brillouin gain linewidth of the highly nonlinear fiber is Γ B =30MHz, stimulated Brillouin frequency shift f B =9.2GHz, the length is 1000 meters, the peak value of gain and loss is 5dB; the first dual-parallel MZ modulator 1 and the second dual-parallel MZ modulator 2 are MXIQ-LN-40 of Photline Company, and their bandwidths are both 20GHz; The modulator is Photline's MXAN-LN-20 with a bandwidth of 20GHz. The DC bias vo...
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