Fiber grating demodulator calibrating method and system
A fiber grating demodulation and fiber grating technology, used in instruments, scientific instruments, measurement optics, etc., can solve the problems of difficult to maintain stable central wavelength, poor environmental adaptability, and complicated use, and achieve a wide range of the measured spectrum and low cost. , the effect of improving the accuracy
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[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0050] The present invention adopts a comb filter as the sensor to be tested, tests its demodulated wavelength, then compares this wavelength with the data measured by a wavelength meter with a precision of 0.3pm, and finally obtains the precision of the demodulated instrument.
[0051] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conj...
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