Institute of Photonics Technology Jinan University Guangzhou 510632 China;
Institute of Photonics Technology Jinan University Guangzhou 510632 China;
Institute of Photonics Technology Jinan University Guangzhou 510632 China;
Institute of Photonics Technology Jinan University Guangzhou 510632 China;
Institute of Photonics Technology Jinan University Guangzhou 510632 China;
Fiber laser; optical magnetic field sensors; fiber-optic sensors; Ampere force;