The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform
Lin Zhang - One of the best experts on this subject based on the ideXlab platform.
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Theoretical and Experimental Analysis of the Directional RI Sensing Property of Tilted Fiber Grating
Journal of Lightwave Technology, 2021Co-Authors: Yuezhen Sun, Kaiming Zhou, Zhijun Yan, Hushan Wang, Yarien Moreno, Qizhen Sun, Deming Liu, Lin ZhangAbstract:In this article, we have theoretically and experimentally investigated the unique vector refractive index (RI) sensing property of tilted Fiber Grating (TFG). Due to the orthogonal symmetric Grating structure, TFGs would mainly achieve the coupling between the Fiber core mode and the two orthogonal polarization LP1m of cladding mode. And the numerical simulation results showed that the coupling coefficient between fundamental core mode to the LP1m cladding mode is higher than the others. In the experiment, we have furthermore observed the cladding mode field distribution of excessively TFG (Ex-TFG) and long period Fiber Grating (LPFG), which indicated that the evanescent field distribution of cladding mode of TFG shows an asymmetric near field distribution with two lobes oriented along the fast axis of TFG, and the one of LPFG has a circularly symmetric cladding mode field distribution. In addition, by employing side-immersion method, we have measured the azimuth RI sensitivities of Ex-TFG, tilted Fiber Bragg Grating (TFBG) and LPFG, which exhibited that both Ex-TFG and TFBG have shown a direction-dependency RI sensitivity, and the RI sensitivity with side-immersion along fast axis is almost half of the one along slow axis, and the RI sensitivity of LPFG is azimuth independent. Overall, the experiment results show that the TFGs inherently show unique directional RI sensing property, which could be potentially applied in vector sensing area.
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excessively tilted Fiber Grating based vector magnetometer
Optics Letters, 2019Co-Authors: Yuezhen Sun, Kaiming Zhou, Zhijun Yan, Hushan Wang, Yarien Moreno, Qizhen Sun, Deming Liu, Lin ZhangAbstract:A compact optic-Fiber vector magnetometer is proposed and experimentally demonstrated, which is based on an excessively tilted Fiber Grating (Ex-TFG) assistant with the magnetic fluid (MF). Without any complicated processing, the cladding mode resonances of the bare Ex-TFG packaged by the MF show high sensitivity to slight perturbations by the magnetic field. Due to the excellent magneto-optical properties of the MF and the azimuth-dependent refractive index sensitivity of the Ex-TFG, such a magnetometer can achieve the magnetic field intensity sensitivity of 2.45 nm/mT and the orientation sensitivity of 0.41 nm/deg. In addition, based on the spectral interrogation, the detection limit of the magnetic field intensity could reach around 8.1 μT at the minimum wavelength measurement accuracy of 0.02 nm.
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vector magnetic field sensor based on excessively tilted Fiber Grating assistant with magnetic fluids
2018 Asia Communications and Photonics Conference (ACP), 2018Co-Authors: Yuezhen Sun, Zhijun Yan, Hushan Wang, Yarien Moreno, Qizhen Sun, Deming Liu, Changle Wang, Lin ZhangAbstract:We demonstrated a vector magnetic field sensor based on an excessively tilted Fiber Grating immersed in magnetic fluid, in which both intensity and orientation of magnetic field could be measured.
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45 tilted Fiber Grating based in Fiber linear polarizer and applications
Progress in Electromagnetic Research Symposium, 2016Co-Authors: Zhijun Yan, Kaiming Zhou, Lin Zhang, Hushan Wang, Chengbo Mou, Zuxing Zhang, Yishan Wang, Wei ZhaoAbstract:In-Fiber optical devices have low insertion loss, high reliability and compatibility with the Fiber systems and transmission network. They are different from the in-line components that are typically produced by coupling the light in and out of the optical Fiber to and from some bulk or integrated optical waveguide device, therefore, inducing high insertion loss. An in-Fiber optical polarizer is a key component for integration of optical Fiber system. The Fiber Grating technology has been vastly developed in the last two decades. It is a mature technique to achieve in-Fiber optical components (reflection mirror, dispersion compensator, mode coupler et al.) with simple fabrication process, freely designed operating wavelength and no Fiber type limitation. We have reported the 45° tilted Fiber Grating (45°-TFG) is an ideal in-Fiber linear polarizer, which is based on Brewster's law. The polarization extinction ratio achieved by a 48mm long 45° TFG is exceeding 50 dB at the peak value and more than 40 dB over 50nm wavelength range. Compare with the otherin-Fiber polarizers technique, such as anisotropic absorption, chiral Fiber Grating, and polarizing Fiber based structures, the 45°-TFG based polarizers have many advantages, such as low cost, simply fabrication process, no limited by the Fiber type, arbitrary operation wavelength, high polarization extinction ration, linear polarization state preservation and high handling power. Moreover, by using 45°-TFGs, we can achieved an all-FiberLyot filter (AFLF) — an in-Fiber polarization interferometer, an all Fiber mode locking Fiber laser system, in-Fiber power taping device and optical spectrometer.
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microhole based long period Fiber Grating fabricated by femtosecond laser induced breakdown in distilled water
2016 Asia Communications and Photonics Conference (ACP), 2016Co-Authors: Fangcheng Shen, Kaiming Zhou, Lin Zhang, Xuewen ShuAbstract:Long period Fiber Grating constructed with periodic microholes, which can enhance the interaction of surrounding environment with the core-propagating light, is fabricated in single mode Fiber with femtosecond laser-induced breakdown in distilled water.
Kaiming Zhou - One of the best experts on this subject based on the ideXlab platform.
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Theoretical and Experimental Analysis of the Directional RI Sensing Property of Tilted Fiber Grating
Journal of Lightwave Technology, 2021Co-Authors: Yuezhen Sun, Kaiming Zhou, Zhijun Yan, Hushan Wang, Yarien Moreno, Qizhen Sun, Deming Liu, Lin ZhangAbstract:In this article, we have theoretically and experimentally investigated the unique vector refractive index (RI) sensing property of tilted Fiber Grating (TFG). Due to the orthogonal symmetric Grating structure, TFGs would mainly achieve the coupling between the Fiber core mode and the two orthogonal polarization LP1m of cladding mode. And the numerical simulation results showed that the coupling coefficient between fundamental core mode to the LP1m cladding mode is higher than the others. In the experiment, we have furthermore observed the cladding mode field distribution of excessively TFG (Ex-TFG) and long period Fiber Grating (LPFG), which indicated that the evanescent field distribution of cladding mode of TFG shows an asymmetric near field distribution with two lobes oriented along the fast axis of TFG, and the one of LPFG has a circularly symmetric cladding mode field distribution. In addition, by employing side-immersion method, we have measured the azimuth RI sensitivities of Ex-TFG, tilted Fiber Bragg Grating (TFBG) and LPFG, which exhibited that both Ex-TFG and TFBG have shown a direction-dependency RI sensitivity, and the RI sensitivity with side-immersion along fast axis is almost half of the one along slow axis, and the RI sensitivity of LPFG is azimuth independent. Overall, the experiment results show that the TFGs inherently show unique directional RI sensing property, which could be potentially applied in vector sensing area.
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excessively tilted Fiber Grating based vector magnetometer
Optics Letters, 2019Co-Authors: Yuezhen Sun, Kaiming Zhou, Zhijun Yan, Hushan Wang, Yarien Moreno, Qizhen Sun, Deming Liu, Lin ZhangAbstract:A compact optic-Fiber vector magnetometer is proposed and experimentally demonstrated, which is based on an excessively tilted Fiber Grating (Ex-TFG) assistant with the magnetic fluid (MF). Without any complicated processing, the cladding mode resonances of the bare Ex-TFG packaged by the MF show high sensitivity to slight perturbations by the magnetic field. Due to the excellent magneto-optical properties of the MF and the azimuth-dependent refractive index sensitivity of the Ex-TFG, such a magnetometer can achieve the magnetic field intensity sensitivity of 2.45 nm/mT and the orientation sensitivity of 0.41 nm/deg. In addition, based on the spectral interrogation, the detection limit of the magnetic field intensity could reach around 8.1 μT at the minimum wavelength measurement accuracy of 0.02 nm.
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45 tilted Fiber Grating based in Fiber linear polarizer and applications
Progress in Electromagnetic Research Symposium, 2016Co-Authors: Zhijun Yan, Kaiming Zhou, Lin Zhang, Hushan Wang, Chengbo Mou, Zuxing Zhang, Yishan Wang, Wei ZhaoAbstract:In-Fiber optical devices have low insertion loss, high reliability and compatibility with the Fiber systems and transmission network. They are different from the in-line components that are typically produced by coupling the light in and out of the optical Fiber to and from some bulk or integrated optical waveguide device, therefore, inducing high insertion loss. An in-Fiber optical polarizer is a key component for integration of optical Fiber system. The Fiber Grating technology has been vastly developed in the last two decades. It is a mature technique to achieve in-Fiber optical components (reflection mirror, dispersion compensator, mode coupler et al.) with simple fabrication process, freely designed operating wavelength and no Fiber type limitation. We have reported the 45° tilted Fiber Grating (45°-TFG) is an ideal in-Fiber linear polarizer, which is based on Brewster's law. The polarization extinction ratio achieved by a 48mm long 45° TFG is exceeding 50 dB at the peak value and more than 40 dB over 50nm wavelength range. Compare with the otherin-Fiber polarizers technique, such as anisotropic absorption, chiral Fiber Grating, and polarizing Fiber based structures, the 45°-TFG based polarizers have many advantages, such as low cost, simply fabrication process, no limited by the Fiber type, arbitrary operation wavelength, high polarization extinction ration, linear polarization state preservation and high handling power. Moreover, by using 45°-TFGs, we can achieved an all-FiberLyot filter (AFLF) — an in-Fiber polarization interferometer, an all Fiber mode locking Fiber laser system, in-Fiber power taping device and optical spectrometer.
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microhole based long period Fiber Grating fabricated by femtosecond laser induced breakdown in distilled water
2016 Asia Communications and Photonics Conference (ACP), 2016Co-Authors: Fangcheng Shen, Kaiming Zhou, Lin Zhang, Xuewen ShuAbstract:Long period Fiber Grating constructed with periodic microholes, which can enhance the interaction of surrounding environment with the core-propagating light, is fabricated in single mode Fiber with femtosecond laser-induced breakdown in distilled water.
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switchable dual wavelength q switched and mode locked Fiber lasers using a large angle tilted Fiber Grating
Optics Express, 2015Co-Authors: Zuxing Zhang, Kaiming Zhou, Yongjin Wang, Lin ZhangAbstract:We proposed and demonstrated pulsed Fiber lasers Q-switched and mode-locked by using a large-angle tilted Fiber Grating, for the first time to our best knowledge. Owing to the unique polarization properties of the large-angle tilted Fiber Grating (LA-TFG), i.e. polarization-dependent loss and polarization-mode splitting, switchable dual-wavelength Q-switched and mode-locked pulses have been achieved with short and long cavities, respectively. For the mode-locking case, the laser was under the operation of nanosecond rectangular pulses, due to the peak-power clamping effect. With the increasing pump power, the durations of both single-and dual-wavelength rectangular pulses increase. It was also found that each filtered wavelength of the dual-wavelength rectangular pulse corresponds to an individual nanosecond rectangular pulse by employing a tunable bandpass filter.
Hushan Wang - One of the best experts on this subject based on the ideXlab platform.
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Theoretical and Experimental Analysis of the Directional RI Sensing Property of Tilted Fiber Grating
Journal of Lightwave Technology, 2021Co-Authors: Yuezhen Sun, Kaiming Zhou, Zhijun Yan, Hushan Wang, Yarien Moreno, Qizhen Sun, Deming Liu, Lin ZhangAbstract:In this article, we have theoretically and experimentally investigated the unique vector refractive index (RI) sensing property of tilted Fiber Grating (TFG). Due to the orthogonal symmetric Grating structure, TFGs would mainly achieve the coupling between the Fiber core mode and the two orthogonal polarization LP1m of cladding mode. And the numerical simulation results showed that the coupling coefficient between fundamental core mode to the LP1m cladding mode is higher than the others. In the experiment, we have furthermore observed the cladding mode field distribution of excessively TFG (Ex-TFG) and long period Fiber Grating (LPFG), which indicated that the evanescent field distribution of cladding mode of TFG shows an asymmetric near field distribution with two lobes oriented along the fast axis of TFG, and the one of LPFG has a circularly symmetric cladding mode field distribution. In addition, by employing side-immersion method, we have measured the azimuth RI sensitivities of Ex-TFG, tilted Fiber Bragg Grating (TFBG) and LPFG, which exhibited that both Ex-TFG and TFBG have shown a direction-dependency RI sensitivity, and the RI sensitivity with side-immersion along fast axis is almost half of the one along slow axis, and the RI sensitivity of LPFG is azimuth independent. Overall, the experiment results show that the TFGs inherently show unique directional RI sensing property, which could be potentially applied in vector sensing area.
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hemoglobin detection based on excessively tilted Fiber Grating by non covalent bonding
International Conference on Information Photonics, 2020Co-Authors: Yuezhen Sun, Zhijun Yan, Hushan Wang, Qizhen Sun, Deming LiuAbstract:We have demonstrated a novel hemoglobin sensor based on hydroxide bond functionalized excessively tilted Fiber Grating. Due to non-covalent bonding between hydroxide bond and hemoglobin, such sensor could achieve hemoglobin detection with sensitivity around 1.93nm/(mg/ml).
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excessively tilted Fiber Grating based vector magnetometer
Optics Letters, 2019Co-Authors: Yuezhen Sun, Kaiming Zhou, Zhijun Yan, Hushan Wang, Yarien Moreno, Qizhen Sun, Deming Liu, Lin ZhangAbstract:A compact optic-Fiber vector magnetometer is proposed and experimentally demonstrated, which is based on an excessively tilted Fiber Grating (Ex-TFG) assistant with the magnetic fluid (MF). Without any complicated processing, the cladding mode resonances of the bare Ex-TFG packaged by the MF show high sensitivity to slight perturbations by the magnetic field. Due to the excellent magneto-optical properties of the MF and the azimuth-dependent refractive index sensitivity of the Ex-TFG, such a magnetometer can achieve the magnetic field intensity sensitivity of 2.45 nm/mT and the orientation sensitivity of 0.41 nm/deg. In addition, based on the spectral interrogation, the detection limit of the magnetic field intensity could reach around 8.1 μT at the minimum wavelength measurement accuracy of 0.02 nm.
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vector magnetic field sensor based on excessively tilted Fiber Grating assistant with magnetic fluids
2018 Asia Communications and Photonics Conference (ACP), 2018Co-Authors: Yuezhen Sun, Zhijun Yan, Hushan Wang, Yarien Moreno, Qizhen Sun, Deming Liu, Changle Wang, Lin ZhangAbstract:We demonstrated a vector magnetic field sensor based on an excessively tilted Fiber Grating immersed in magnetic fluid, in which both intensity and orientation of magnetic field could be measured.
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45 tilted Fiber Grating based in Fiber linear polarizer and applications
Progress in Electromagnetic Research Symposium, 2016Co-Authors: Zhijun Yan, Kaiming Zhou, Lin Zhang, Hushan Wang, Chengbo Mou, Zuxing Zhang, Yishan Wang, Wei ZhaoAbstract:In-Fiber optical devices have low insertion loss, high reliability and compatibility with the Fiber systems and transmission network. They are different from the in-line components that are typically produced by coupling the light in and out of the optical Fiber to and from some bulk or integrated optical waveguide device, therefore, inducing high insertion loss. An in-Fiber optical polarizer is a key component for integration of optical Fiber system. The Fiber Grating technology has been vastly developed in the last two decades. It is a mature technique to achieve in-Fiber optical components (reflection mirror, dispersion compensator, mode coupler et al.) with simple fabrication process, freely designed operating wavelength and no Fiber type limitation. We have reported the 45° tilted Fiber Grating (45°-TFG) is an ideal in-Fiber linear polarizer, which is based on Brewster's law. The polarization extinction ratio achieved by a 48mm long 45° TFG is exceeding 50 dB at the peak value and more than 40 dB over 50nm wavelength range. Compare with the otherin-Fiber polarizers technique, such as anisotropic absorption, chiral Fiber Grating, and polarizing Fiber based structures, the 45°-TFG based polarizers have many advantages, such as low cost, simply fabrication process, no limited by the Fiber type, arbitrary operation wavelength, high polarization extinction ration, linear polarization state preservation and high handling power. Moreover, by using 45°-TFGs, we can achieved an all-FiberLyot filter (AFLF) — an in-Fiber polarization interferometer, an all Fiber mode locking Fiber laser system, in-Fiber power taping device and optical spectrometer.
Yuezhen Sun - One of the best experts on this subject based on the ideXlab platform.
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Theoretical and Experimental Analysis of the Directional RI Sensing Property of Tilted Fiber Grating
Journal of Lightwave Technology, 2021Co-Authors: Yuezhen Sun, Kaiming Zhou, Zhijun Yan, Hushan Wang, Yarien Moreno, Qizhen Sun, Deming Liu, Lin ZhangAbstract:In this article, we have theoretically and experimentally investigated the unique vector refractive index (RI) sensing property of tilted Fiber Grating (TFG). Due to the orthogonal symmetric Grating structure, TFGs would mainly achieve the coupling between the Fiber core mode and the two orthogonal polarization LP1m of cladding mode. And the numerical simulation results showed that the coupling coefficient between fundamental core mode to the LP1m cladding mode is higher than the others. In the experiment, we have furthermore observed the cladding mode field distribution of excessively TFG (Ex-TFG) and long period Fiber Grating (LPFG), which indicated that the evanescent field distribution of cladding mode of TFG shows an asymmetric near field distribution with two lobes oriented along the fast axis of TFG, and the one of LPFG has a circularly symmetric cladding mode field distribution. In addition, by employing side-immersion method, we have measured the azimuth RI sensitivities of Ex-TFG, tilted Fiber Bragg Grating (TFBG) and LPFG, which exhibited that both Ex-TFG and TFBG have shown a direction-dependency RI sensitivity, and the RI sensitivity with side-immersion along fast axis is almost half of the one along slow axis, and the RI sensitivity of LPFG is azimuth independent. Overall, the experiment results show that the TFGs inherently show unique directional RI sensing property, which could be potentially applied in vector sensing area.
-
hemoglobin detection based on excessively tilted Fiber Grating by non covalent bonding
International Conference on Information Photonics, 2020Co-Authors: Yuezhen Sun, Zhijun Yan, Hushan Wang, Qizhen Sun, Deming LiuAbstract:We have demonstrated a novel hemoglobin sensor based on hydroxide bond functionalized excessively tilted Fiber Grating. Due to non-covalent bonding between hydroxide bond and hemoglobin, such sensor could achieve hemoglobin detection with sensitivity around 1.93nm/(mg/ml).
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excessively tilted Fiber Grating based vector magnetometer
Optics Letters, 2019Co-Authors: Yuezhen Sun, Kaiming Zhou, Zhijun Yan, Hushan Wang, Yarien Moreno, Qizhen Sun, Deming Liu, Lin ZhangAbstract:A compact optic-Fiber vector magnetometer is proposed and experimentally demonstrated, which is based on an excessively tilted Fiber Grating (Ex-TFG) assistant with the magnetic fluid (MF). Without any complicated processing, the cladding mode resonances of the bare Ex-TFG packaged by the MF show high sensitivity to slight perturbations by the magnetic field. Due to the excellent magneto-optical properties of the MF and the azimuth-dependent refractive index sensitivity of the Ex-TFG, such a magnetometer can achieve the magnetic field intensity sensitivity of 2.45 nm/mT and the orientation sensitivity of 0.41 nm/deg. In addition, based on the spectral interrogation, the detection limit of the magnetic field intensity could reach around 8.1 μT at the minimum wavelength measurement accuracy of 0.02 nm.
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vector magnetic field sensor based on excessively tilted Fiber Grating assistant with magnetic fluids
2018 Asia Communications and Photonics Conference (ACP), 2018Co-Authors: Yuezhen Sun, Zhijun Yan, Hushan Wang, Yarien Moreno, Qizhen Sun, Deming Liu, Changle Wang, Lin ZhangAbstract:We demonstrated a vector magnetic field sensor based on an excessively tilted Fiber Grating immersed in magnetic fluid, in which both intensity and orientation of magnetic field could be measured.
Zhijun Yan - One of the best experts on this subject based on the ideXlab platform.
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Theoretical and Experimental Analysis of the Directional RI Sensing Property of Tilted Fiber Grating
Journal of Lightwave Technology, 2021Co-Authors: Yuezhen Sun, Kaiming Zhou, Zhijun Yan, Hushan Wang, Yarien Moreno, Qizhen Sun, Deming Liu, Lin ZhangAbstract:In this article, we have theoretically and experimentally investigated the unique vector refractive index (RI) sensing property of tilted Fiber Grating (TFG). Due to the orthogonal symmetric Grating structure, TFGs would mainly achieve the coupling between the Fiber core mode and the two orthogonal polarization LP1m of cladding mode. And the numerical simulation results showed that the coupling coefficient between fundamental core mode to the LP1m cladding mode is higher than the others. In the experiment, we have furthermore observed the cladding mode field distribution of excessively TFG (Ex-TFG) and long period Fiber Grating (LPFG), which indicated that the evanescent field distribution of cladding mode of TFG shows an asymmetric near field distribution with two lobes oriented along the fast axis of TFG, and the one of LPFG has a circularly symmetric cladding mode field distribution. In addition, by employing side-immersion method, we have measured the azimuth RI sensitivities of Ex-TFG, tilted Fiber Bragg Grating (TFBG) and LPFG, which exhibited that both Ex-TFG and TFBG have shown a direction-dependency RI sensitivity, and the RI sensitivity with side-immersion along fast axis is almost half of the one along slow axis, and the RI sensitivity of LPFG is azimuth independent. Overall, the experiment results show that the TFGs inherently show unique directional RI sensing property, which could be potentially applied in vector sensing area.
-
hemoglobin detection based on excessively tilted Fiber Grating by non covalent bonding
International Conference on Information Photonics, 2020Co-Authors: Yuezhen Sun, Zhijun Yan, Hushan Wang, Qizhen Sun, Deming LiuAbstract:We have demonstrated a novel hemoglobin sensor based on hydroxide bond functionalized excessively tilted Fiber Grating. Due to non-covalent bonding between hydroxide bond and hemoglobin, such sensor could achieve hemoglobin detection with sensitivity around 1.93nm/(mg/ml).
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excessively tilted Fiber Grating based vector magnetometer
Optics Letters, 2019Co-Authors: Yuezhen Sun, Kaiming Zhou, Zhijun Yan, Hushan Wang, Yarien Moreno, Qizhen Sun, Deming Liu, Lin ZhangAbstract:A compact optic-Fiber vector magnetometer is proposed and experimentally demonstrated, which is based on an excessively tilted Fiber Grating (Ex-TFG) assistant with the magnetic fluid (MF). Without any complicated processing, the cladding mode resonances of the bare Ex-TFG packaged by the MF show high sensitivity to slight perturbations by the magnetic field. Due to the excellent magneto-optical properties of the MF and the azimuth-dependent refractive index sensitivity of the Ex-TFG, such a magnetometer can achieve the magnetic field intensity sensitivity of 2.45 nm/mT and the orientation sensitivity of 0.41 nm/deg. In addition, based on the spectral interrogation, the detection limit of the magnetic field intensity could reach around 8.1 μT at the minimum wavelength measurement accuracy of 0.02 nm.
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vector magnetic field sensor based on excessively tilted Fiber Grating assistant with magnetic fluids
2018 Asia Communications and Photonics Conference (ACP), 2018Co-Authors: Yuezhen Sun, Zhijun Yan, Hushan Wang, Yarien Moreno, Qizhen Sun, Deming Liu, Changle Wang, Lin ZhangAbstract:We demonstrated a vector magnetic field sensor based on an excessively tilted Fiber Grating immersed in magnetic fluid, in which both intensity and orientation of magnetic field could be measured.
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45 tilted Fiber Grating based in Fiber linear polarizer and applications
Progress in Electromagnetic Research Symposium, 2016Co-Authors: Zhijun Yan, Kaiming Zhou, Lin Zhang, Hushan Wang, Chengbo Mou, Zuxing Zhang, Yishan Wang, Wei ZhaoAbstract:In-Fiber optical devices have low insertion loss, high reliability and compatibility with the Fiber systems and transmission network. They are different from the in-line components that are typically produced by coupling the light in and out of the optical Fiber to and from some bulk or integrated optical waveguide device, therefore, inducing high insertion loss. An in-Fiber optical polarizer is a key component for integration of optical Fiber system. The Fiber Grating technology has been vastly developed in the last two decades. It is a mature technique to achieve in-Fiber optical components (reflection mirror, dispersion compensator, mode coupler et al.) with simple fabrication process, freely designed operating wavelength and no Fiber type limitation. We have reported the 45° tilted Fiber Grating (45°-TFG) is an ideal in-Fiber linear polarizer, which is based on Brewster's law. The polarization extinction ratio achieved by a 48mm long 45° TFG is exceeding 50 dB at the peak value and more than 40 dB over 50nm wavelength range. Compare with the otherin-Fiber polarizers technique, such as anisotropic absorption, chiral Fiber Grating, and polarizing Fiber based structures, the 45°-TFG based polarizers have many advantages, such as low cost, simply fabrication process, no limited by the Fiber type, arbitrary operation wavelength, high polarization extinction ration, linear polarization state preservation and high handling power. Moreover, by using 45°-TFGs, we can achieved an all-FiberLyot filter (AFLF) — an in-Fiber polarization interferometer, an all Fiber mode locking Fiber laser system, in-Fiber power taping device and optical spectrometer.