Low birefringence depressed cladding photosensitive fiber |
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| Authors: | Feng Tu Deming Liu Jie Luo Xinwei Qian Chen Yang Tao Deng Wuhan National Laboratory for Optoelectronics Huazhong University of Science Technology Wuhan China College of Optoelectronics Science Engineering China R D Center of Yangtze Optical Fiber Cable Co Ltd Wuhan China |
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| Institution: | Feng Tu Deming Liu Jie Luo Xinwei Qian Chen Yang , Tao Deng 1 Wuhan National Laboratory for Optoelectronics,Huazhong University of Science , Technology,Wuhan 430074,China 2 College of Optoelectronics Science , Engineering,China 3 R , D Center of Yangtze Optical Fiber , Cable Co.,Ltd.,Wuhan 430073,China |
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| Abstract: | The highly Ge-doped photosensitive fiber(PSF) has been widely used in the fabrication of fiber Bragg gratings(FBGs).Its birefringence and cladding mode coupling characteristics greatly influence FBG's transmission feature in communication application areas.In this work,a new concept of the PSF is introduced which,along with an optimized birefringence design,a precisely controlled fabrication process, and a cladding mode depressed design,results in a written FBG with - 25-dB clad mode-depressed ratio and a p... |
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