Hydrogen sensing head based on distributed feedback fiber laser as well as preparation method and application of hydrogen sensing head

• Main Authors: CHU FENGHONG, HAN JIAWEN, BIAN ZHENGLAN, SUN YISHENG
• Format: Patent
• Language: Chinese; English
• Published: 19.03.2024
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention relates to a hydrogen sensing head based on a distributed feedback fiber laser as well as a preparation method and application thereof. The hydrogen sensing head based on the distributed feedback fiber laser comprises a hydrogen sensitive distributed feedback fiber laser (1) (hydrogen sensitive DFB-FL and DFB-FL1) and a temperature compensation distributed feedback fiber laser (2) (temperature compensation DFB-FL and DFB-FL2), the hydrogen sensitive distributed feedback fiber laser (1) is connected with the quartz substrate (3); the temperature compensation distributed feedback fiber laser (2) is connected with the quartz substrate (3); and the hydrogen sensitive distributed feedback fiber laser (1) is coated with a hydrogen sensitive material. Compared with the prior art, the hydrogen sensing head has the advantages of high sensitivity, high precision, electromagnetic interference resistance, low detection limit, long-term stable monitoring and the like. 本发明涉及基于分布反馈光纤激光器的氢气传感头及制备方法和应用，所述基于分布反馈光