Patent ID: 9581495
Date: 2017-02-28
CPC Classifications: G01J,G01N

Claim:
1. A spectroscopic analysis device based on Brillouin dynamic grating, characterized in that, said spectroscopic analysis device comprising: a laser device ( 1 ), a fiber optic coupler device ( 2 ), a first fiber amplifier device ( 3 ), a first isolator ( 4 ), a first polarization controller ( 5 ), a second polarization controller ( 6 ), a single-sideband modulation modulator ( 7 ), a second fiber amplifier device ( 8 ), a second isolator ( 9 ), a third polarization controller ( 10 ), a single-mode fiber ( 11 ), a polarization beam splitter ( 12 ), a circulator ( 13 ), a photodetector ( 14 ), a data acquisition card ( 15 ), a fourth polarization controller ( 16 ) and a microwave source ( 17 ), said laser device ( said second beam of pump light is incident to said single-sideband modulation modulator ( a frequency provided by said microwave source ( an optical shifted lower frequency from said single-sideband modulation modulator ( a light for testing is incident to an A-port of said circulator (