基于溶液掺杂法的铒镱共掺光纤本底损耗研究
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摘要
针对改进的化学汽相沉积工艺结合溶液掺杂法制备的铒镱共掺光纤,通过研究芯层层数、疏松芯层反应原材料流量、脱水时间以及沉积温度等因素对光纤本底损耗的影响,优化了疏松芯层的沉积工艺与脱水工艺,最终将铒镱共掺光纤在1 200 nm波长处的本底损耗降至10.5 dB/km。该研究工作对于低损耗掺稀土光纤的研制具有一定的借鉴意义。
Aiming at the Er~(3+)-Yb~(3+) co-doped fiber prepared by modified chemical vapor deposition(MCVD) process combined with solution doping method, the deposition process and dehydration process of the porous core layer are optimized by studying the influence of core layer number, flow rate of reactive raw materials in porous core layer, dehydration time and deposition temperature on the fiber background loss. Finally, the background loss of Er~(3+)-Yb~(3+) co-doped fiber at 1 200 nm wavelength is reduced to 10.5 dB/km. The research work has certain reference significance for the development of low loss rare-earth doped fibers.
Aiming at the Er~(3+)-Yb~(3+) co-doped fiber prepared by modified chemical vapor deposition(MCVD) process combined with solution doping method, the deposition process and dehydration process of the porous core layer are optimized by studying the influence of core layer number, flow rate of reactive raw materials in porous core layer, dehydration time and deposition temperature on the fiber background loss. Finally, the background loss of Er~(3+)-Yb~(3+) co-doped fiber at 1 200 nm wavelength is reduced to 10.5 dB/km. The research work has certain reference significance for the development of low loss rare-earth doped fibers.
引文
[1] HAN S,JANG H,KIM S,et al. MW peak power Er/Yb-doped fiber femtosecond laser amplifier at 1.5 μm center wavelength[J]. Laser Physics Letter,2017,14(8):080002.
[2] JEBALI M A,MARAN J N,LAROCHELLE S. 264 W output power at 1 585 nm in Er-Yb co-doped fiber laser in-band pumping[J]. Optics Letter,2014,39(13):3974-3977.
[3] PAL M,SEN R,PAUL M C,et al. Investigation of the deposition of porous layers by the MCVD method for the preparation of rare-earth doped cores of optical fibers[J]. Optics Communication,2005,254(1-3):88-95.
[4] WEBB A S,BOYLAND A J,STANDISH R J,et al. MCVD in-situ solution doping process for the fabrication of complex design large core rare-earth doped fibers[J]. J Non-Crystalline Solids,2010,356(18):848-851.
[2] JEBALI M A,MARAN J N,LAROCHELLE S. 264 W output power at 1 585 nm in Er-Yb co-doped fiber laser in-band pumping[J]. Optics Letter,2014,39(13):3974-3977.
[3] PAL M,SEN R,PAUL M C,et al. Investigation of the deposition of porous layers by the MCVD method for the preparation of rare-earth doped cores of optical fibers[J]. Optics Communication,2005,254(1-3):88-95.
[4] WEBB A S,BOYLAND A J,STANDISH R J,et al. MCVD in-situ solution doping process for the fabrication of complex design large core rare-earth doped fibers[J]. J Non-Crystalline Solids,2010,356(18):848-851.