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Low birefringence depressed cladding photosensitive fiber

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【Author】 Feng Tu Deming Liu Jie Luo Xinwei Qian Chen Yang and Tao Deng 1 Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and Technology,Wuhan 430074,China 2 College of Optoelectronics Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China 3 R and D Center of Yangtze Optical Fiber and Cable Co.,Ltd.,Wuhan 430073,China

【机构】 Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and Technology； College of Optoelectronics Science and Engineering,Huazhong University of Science and Technology； R and D Center of Yangtze Optical Fiber and Cable Co.,Ltd.；

【摘要】 <正>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 polarization mode dispersion value less than 0.045 ps.更多还原

【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 polarization mode dispersion value less than 0.045 ps.更多还原

【关键词】 depressed； cladding； Bragg； fabrication； doping； PCVD； ultraviolet； precisely； drawing； graded；

【文献出处】 Chinese Optics Letters ,中国光学快报(英文版) , 编辑部邮箱 ,2010年01期

【分类号】TN929.11
【被引频次】2
【下载频次】50

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