| Bragg Grating Formation in B／Ge Codoped Optical Fibers |
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| 作者姓名： | SANGXin-zhu YUChong-xiu ChuPakL LaiRobust ZHANGQi |
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| 作者单位： | [1]SchoolofElectron.Eng.,BeijingUniversityofPostsandTelecommunications,Beijing100876,CHN／／Optoelectron.ResearchCentre,CityUniversityofHongkong,TatCheeAvenue,Kowloon,Hongkong,CHN [2]SchoolofElectron.Eng.,BeijingUniversityofPostsandTelecommunications,Beijing100876,CHN [3]Optoelectron.ResearchCentre,CityUniversityofHongkong,TatCheeAvenue,Kowloon,Hongkong,CHN |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | A 2-cm long Bragg grating with reflectivity of - 99.95 % in B/Ge codoped optical fiber without hydrogen loading was created by phase-mask method with a pulsed KrF excimer laser at 248 nm. DC and AC components of refractive index change were analyzed by monitoring transmission spectrum evolution during the writing process of fiber Bragg grating. The relations of the evolution of center wavelength and reflectivity with number of pulses were respectively investigated.
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| 关 键 词： | B／Ge掺杂光纤 光纤布拉格光栅 折射率 相位屏蔽 |
| 收稿时间： | 2004/7/7 |
Bragg Grating Formation in B/Ge Codoped Optical Fibers |
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| SANGXin-zhu YUChong-xiu ChuPakL LaiRobust ZHANGQi.Bragg Grating Formation in B/Ge Codoped Optical Fibers[J].Semiconductor Photonics and Technology,2005,11(1):5-8. |
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| Authors: | SANG Xin-zhu YU Chong-xiu Chu Pak L Lai Robust ZHANG Qi |
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| Abstract: | A 2-cm long Bragg grating with reflectivity of～99.95% in B/Ge codoped optical fiber without hydrogen loading was created by phase-mask method with a pulsed KrF excimer laser at 248 nm. DC and AC components of refractive index change were analyzed by monitoring transmission spectrum evolution during the writing process of fiber Bragg grating. The relations of the evolution of center wavelength and reflectivity with number of pulses were respectively investigated. |
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| Keywords: | Fiber Bragg grating Refractive index Phase mask method |
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