Real core polarization maintaining optical fiber and fiber optic gyroscope
By setting air holes and anti-resonance units in the cladding region of the optical fiber, the polarization-maintaining characteristics of the optical fiber are enhanced, solving the problem that solid polarization-maintaining optical fibers cannot simultaneously meet the requirements of high birefringence and low loss, thus realizing optical fiber transmission with high birefringence and low loss.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- YANSHAN UNIV
- Filing Date
- 2026-06-01
- Publication Date
- 2026-07-17
AI Technical Summary
Existing solid polarization-maintaining optical fibers cannot simultaneously meet the requirements of high birefringence and low confinement loss during transmission.
At least two air holes are set in the cladding region of the optical fiber and arranged on both sides of the Y-axis of the fiber core. Anti-resonance units, including half tubes and circular cladding tubes, are arranged symmetrically about the Y-axis with the fiber core as the center to form a longitudinal stress field, enhance polarization maintaining characteristics, and limit the transmission of light in the fiber core through anti-resonance conditions.
The birefringence coefficient of the optical fiber was improved, and the transmission loss was reduced, enabling high birefringence and low loss transmission in the 7.1μm~8.2μm infrared band.
Smart Images
Figure CN122410698A_ABST