▎ 摘　　要

NOVELTY - The interference type optical fibre gyroscope comprises a self-locking mode light source that has a light source generating unit, a beam splitter and a photon crystal optical fibre with saturable absorption characteristics. The light source generating unit is connected with the beam splitter. The beam splitter is connected with the Y waveguide and the photonic crystal optical fibre for realizing the measurement of light source output and optical fibre gyro angular rate. The photonic crystal optical fibre is connected with the light source generating unit. The Y waveguide is connected with the optical fibre ring. The photonic crystal optical fibre has a core, a cladding and a coating layer from inside to outside sequentially. The material of the fibre core has a graphene silicon dioxide. USE - Interference type optical fibre gyroscope driven by self-locking mode light source for use in middle and high precision optical fibre gyro research field. ADVANTAGE - The gyroscope is provided with a photon crystal optical fiber with saturable absorption characteristics amplifying and shaping the original light source spectrum to realize high power, high wavelength stability of the light source output, thus improving the scale factor stability and use precision of the optical fiber gyro-scope. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the interference type optical fibre gyroscope.