A novel equal diameter circular-hole photonic crystal fiber(PCF) with high birefringence is proposed and numerically analyzed by employing the finite-element method. The proposed PCF's birefringence is 10^(-3), wh...A novel equal diameter circular-hole photonic crystal fiber(PCF) with high birefringence is proposed and numerically analyzed by employing the finite-element method. The proposed PCF's birefringence is 10^(-3), which can reach 2 orders higher than that of traditional high birefringence fiber, and this equal diameter circular-hole structure reduces the difficulty of the actual drawing process. The effect of different parameters on the birefringence of this PCF is investigated, and the application of the Sagnac interferometer based on fiber filling technology in temperature sensing is studied. The result shows that the high birefringence PCF can be used in both optical communication and optical sensing fields.展开更多
A temperature-insensitive polarization filter and a neotype sensor based on a hybrid-circular-hole microstructured optical fiber(MOF) are proposed. Numerical investigations demonstrate that the x polarized component o...A temperature-insensitive polarization filter and a neotype sensor based on a hybrid-circular-hole microstructured optical fiber(MOF) are proposed. Numerical investigations demonstrate that the x polarized component of silica core mode can couple to the cladding mode in the researched wavelength, while the y polarized component would not. Furthermore, the resonant region can be controlled by changing the diameters or coordinates of the air holes, and the MOF has good performance on stability of temperature. Moreover, the hybrid-circular-hole structure is propitious to selectively integrate different functional materials. Two different materials are integrated into this proposed MOF, the application of the Sagnac interferometer in temperature sensing is studied, and two groups of dips would be observed in the transmission spectra, which have different temperature sensitivities. Therefore, the proposed MOF can be used as a flexible temperature-insensitive polarization filter or potentially applied to a two-parameter sensor.展开更多
基金supported by the National Natural Science Foundation of China(Nos.61301124,61471075 and 61671091)the Basic Research Project of Chongqing Science and Technology Commission(Nos.cstc2014gjhz40001,cstc2015jcyj BX0068,cstc2014jcyj A1350,cstc2015jcyj B0360 and KJZH17115)+3 种基金the University Innovation Team Construction Plan of Smart Medical System and Core Technologythe Enhancement Plan of Chongqing Key Laboratory of Photoelectronic Information Sensing and Transmitting Technologythe Scientific and Technological Research Program of Chongqing Municipal Education Commission(No.KJ1704091)the Funds of Chongqing University of Posts and Telecommunications(No.A2016-72)
文摘A novel equal diameter circular-hole photonic crystal fiber(PCF) with high birefringence is proposed and numerically analyzed by employing the finite-element method. The proposed PCF's birefringence is 10^(-3), which can reach 2 orders higher than that of traditional high birefringence fiber, and this equal diameter circular-hole structure reduces the difficulty of the actual drawing process. The effect of different parameters on the birefringence of this PCF is investigated, and the application of the Sagnac interferometer based on fiber filling technology in temperature sensing is studied. The result shows that the high birefringence PCF can be used in both optical communication and optical sensing fields.
基金supported by the National Natural Science Foundation of China(Nos.61705027 and 11704053)the Innovation Leader Talent Project of Chongqing Science and Technology(No.CSTCCXLJR20171160)the Basic Research Project of Chongqing Science and Technology Commission(Nos.KJZH17115,Cstc2017csms A40017,KJ1704091,KJ1704104 and KJ1704106)
文摘A temperature-insensitive polarization filter and a neotype sensor based on a hybrid-circular-hole microstructured optical fiber(MOF) are proposed. Numerical investigations demonstrate that the x polarized component of silica core mode can couple to the cladding mode in the researched wavelength, while the y polarized component would not. Furthermore, the resonant region can be controlled by changing the diameters or coordinates of the air holes, and the MOF has good performance on stability of temperature. Moreover, the hybrid-circular-hole structure is propitious to selectively integrate different functional materials. Two different materials are integrated into this proposed MOF, the application of the Sagnac interferometer in temperature sensing is studied, and two groups of dips would be observed in the transmission spectra, which have different temperature sensitivities. Therefore, the proposed MOF can be used as a flexible temperature-insensitive polarization filter or potentially applied to a two-parameter sensor.
