“…Quartz optical fiber sensor has been studied for a long time. In 1970, the Corning Company successfully developed low-loss optical fiber, and remarkable achievements have been made in the structural design [ 65 , 66 , 67 ], experimental preparation [ 68 , 69 , 70 , 71 , 72 ], and application [ 73 , 74 , 75 , 76 , 77 ] of the sensor head. However, in order to solve the cross-sensitivity problem of quartz optic fiber sensors, structural modification is required, which leads to the sensor head being brittle and easy to break.…”