All-fiber-optic vector magnetometer based on nano-magnetic fluids filled double-clad photonic crystal fiber

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• 作者：Jinde Yin^a ; ^bAuthor Vitae ; Shuangchen Ruan^a ; ^{scruan@szu.edu.cn" class="auth_mail" title="E-mail the corresponding author}Author Vitae ; Tiegen Liu^cAuthor Vitae ; Junfeng Jiang^cAuthor Vitae ; Shuang Wang^cAuthor Vitae ; Huifeng Wei^dAuthor Vitae ; Peiguang Yan^a ; ^{yanpg@szu.edu.cn" class="auth_mail" title="E-mail the corresponding author}Author Vitae
• 关键词：Nano-magnetic fluid materials ; Photonic crystal fiber ; All-optical devices ; Vector magnetometer
• 刊名：Sensors & Actuators: B. Chemical
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：238
• 期：Complete
• 页码：518-524
• 全文大小：2541 K

文摘

We demonstrate a compact all-fiber-optic vector magnetometer based on Mach-Zehnder interferometer by utilizing nano-magnetic fluid filled double-clad photonic crystal fiber (DC-PCF). The magnetic fluid (MF) serving as sensing elements is injected into the micro-channel-arrays of DC-PCF. The magnetometer is constructed by splicing a section of MF-filled DC-PCF between two standard single mode fibers forming a high stable all-fiber structure without any additional sealed capillary. The vector magnetometer has the capability of simultaneous measurement of magnetic field intensity and orientation by monitoring a specific dip wavelength shift or transmission loss of Mach-Zehnder interference spectrum. The magnetometer with response sensitivities of 114.5 pm/mT, 1.79 dB/mT (X-axis) and 41.9 pm/mT, 0.52 dB/mT (Y-axis) at two particular orthogonal magnetic field orientations was fabricated and investigated.