Multi-Beam Interference Transmission Spectrum Observed from an Eccentric Core Single-Mode Fiber
FAN Lin-Yong**, JIANG Wei-Wei, ZHAO Rui-Feng, PEI Li, JIAN Shui-Sheng
Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044 Key Lab of All Optical Network and Advanced Telecommunication Network of EMC, Beijing Jiaotong University, Beijing 100044
Multi-Beam Interference Transmission Spectrum Observed from an Eccentric Core Single-Mode Fiber
FAN Lin-Yong**, JIANG Wei-Wei, ZHAO Rui-Feng, PEI Li, JIAN Shui-Sheng
Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044 Key Lab of All Optical Network and Advanced Telecommunication Network of EMC, Beijing Jiaotong University, Beijing 100044
摘要An eccentric core single-mode fiber, whose core is away from the axis of the fiber, is fabricated by using the fiber preform goniometric-groove method and the stack-and-draw method. An eccentric core single-mode fiber without coating is spliced between two single-mode fibers. Fundamental mode and cladding modes are excited at one splicing point between the eccentric core single-mode fiber and the single-mode fiber, and propagate in the eccentric core single-mode fiber, then interfere with each other at the other splicing point. Multi-beam interference transmission spectrum is observed. An in-line fiber interferometric strain sensor based on the eccentric core single-mode fiber is realized.
Abstract：An eccentric core single-mode fiber, whose core is away from the axis of the fiber, is fabricated by using the fiber preform goniometric-groove method and the stack-and-draw method. An eccentric core single-mode fiber without coating is spliced between two single-mode fibers. Fundamental mode and cladding modes are excited at one splicing point between the eccentric core single-mode fiber and the single-mode fiber, and propagate in the eccentric core single-mode fiber, then interfere with each other at the other splicing point. Multi-beam interference transmission spectrum is observed. An in-line fiber interferometric strain sensor based on the eccentric core single-mode fiber is realized.
[1] Lee B H and Nishii J 1999 Appl. Opt. 38 3450
[2] Villatoro J, Finazzi V, Minkovich V P, Pruneri V and Badenes G 2007 Appl. Phys. Lett. 91 091109
[3] Yuan L, Yang J, Liu Z and Sun J 2006 Opt. Lett. 31 2692
[4] Hosaka T, Okamoto K and Noda J 1982 IEEE J. Quantum Electron. 18 1569
[5] Alphones A and Sanyal G S 1987 J. Lightwave Technol. 5 598
[6] Kishi N and Yamashita E 1990 J. Lightwave Technol. 8 1207
[7] Nakamura K and Youshida K 1997 12th International Conference on Optical Fiber Sensors (Washington, DC 1997) p 622
[8] Chen X F, Zhang C, Webb D J, Kalli K and Peng G D 2010 IEEE Photon. Technol. Lett. 22 850
2011, Vol. 28 
