Method for determining the spectral scale of a spectrometer and apparatus
A spectral calibration and spectral intensity technology, applied in the field of devices, can solve the problem of low signal power
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[0065] refer to figure 1 , the spectrometer 500 may include a Fabry-Perot interferometer 100 and a detector DET1. Object OBJ1 may reflect, emit and / or transmit light LB1. Light LB1 may be coupled into spectrometer 500 to monitor the spectrum of light LB1.
[0066] The Fabry-Perot interferometer 100 includes a first half mirror 110 and a second half mirror 120 . The distance between the first mirror 110 and the second mirror 120 is equal to the mirror gap d FP . Mirror gap d FP Can be adjustable. The first mirror 110 may have a solid-air interface 111 and the second mirror 120 may have a solid-air interface 121 . Mirror gap d FPThe distance between interfaces 111 and 121 may be represented. The Fabry-Perot interferometer 100 provides the transmission peak P FP,k ( figure 2 ), where the transmission peak P FP,k The spectral position of can depend on the mirror gap d FP . Transmission peak P FP,k The spectral position of can be changed by changing the mirror spacin...
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