Triangular wave phase modulation method of resonant cavity optical fiber gyroscope and apparatus thereof

This invention discloses one triangle wave phase modulation method and device of resonance chamber fiber top, wherein, the laser is connected to first couple device, first phase modulator, second couple device, third couple device, fourth couple device, second phase modulation device and first couple; the first phase modulation and first triangle wave signal generator are connected; the second phase modulation and second triangle signal generator are connected; the second couple device and first photoelectricity, first high speed digital signal processor and laser are connected; the fourth couple device is connected to fourth couple device, second photoelectricity detector, second high speed digital processor; the third couple device is connected to the fiber ring.