种用于光纤陀螺的超细径保偏光纤及其制造方法

• Format: Patent
• Language: Chinese
• Published: 01.03.2019
• Subjects: CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES; METALLURGY; MINERAL OR SLAG WOOL; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

本发明公开了种用于光纤陀螺的超细径保偏光纤及其制造方法，该方法包括：通过严格控制光纤预制棒工艺参数，制备出具有优良光学特性的光纤预制棒；在拉制过程中，采用直径回控及速度自动调节实现对超细径保偏光纤包层直径的精确控制，同时，采用涂覆层直径随涂料温度可控技术实现对超细径保偏光纤涂覆层直径的精确控制；所述超细径保偏光纤为熊猫型保险光纤，其工作波长为850nm，所述超细径保偏光纤包层直径为60μm，所述超细径保偏光纤涂覆层直径为100μm。通过本发明制造出来的超细径保偏光纤不仅具有良好的光学性能、几何性能和耦合、熔接性能，而且制造难度低、成本低，适合大批量生产。 An ultrafine polarization-maintaining optical fiber for use in a fiber optic gyroscope and a manufacturing method for the optical fiber: manufacturing an optical fiber preform by controlling an optical fiber preform process parameter; in a drawing process, employing diameter feedback control and automatic speed adjustment to implement precision control of the diameter of an ultrafine polarization-maintaining optical fiber cladding layer and, at the same time, by employing a technique for controllable coating layer diameter per coating material temperature to implement precision control of the diameter of an ultrafine polarization-maintaining optical fiber coating layer; the ultrafine polarization-maintaining optical fiber is a panda-