System and method for improving anti-radiation capability of BOTDR (Brillouin Optical Time-Domain Reflectometry)
A radiation-resistant and capable technology, applied in the field of distributed optical fiber sensing, to achieve the effect of reducing absorption coefficient, reducing radiation damage, and reducing fiber loss
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[0040] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:
[0041] Such as figure 1 As shown, the present invention designs a system for improving the anti-radiation ability of BOTDR, including a light source module, a first coupler, an optical polarization perturbation module, an electro-optical modulation module, an interval sequence generation module, an optical pulse amplification module, a circulator, an optical fiber, The second coupler (50:50), light detection module, frequency sweep module, filter module, amplification module, signal processing module, wherein,
[0042] a light source module, configured to output continuous light to the first coupler;
[0043] The first coupler is used to divide the continuous light into two paths (90:10): the first path is used as the continuous light of the detection and the second path is used as the continuous light of the local oscillator; the first path of co...
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