光学学报, 2011, 31 (s1): s100109, 网络出版: 2011-06-23
掺Yb3+增益导引折射率反导引光纤的制备及模式特性研究
Study on Characteristic of Yb3+-Gain Guided Index-Antiguided Fiber
光纤光学 掺Yb3+增益导引折射率反导引光纤 光束质量因子 模场直径 单模 fiber optic Yb3+doped-gain guided index-antiguided fiber beam quality factors mode field diameter single mode
摘要
研制了Yb3+掺杂增益导引折射率反导引（Yb3+GGIAG）光纤的纤芯和包层玻璃材料，采用套管法拉制了Yb3+GGIAG光纤，纤芯直径为120 μm，内包层直径为220 μm，外包层直径为260 μm，纤芯与包层折射率差Δn=-0.00094。测试不同长度的Yb3+GGIAG光纤，发现当单模信号光通过Yb3+GGIAG光纤时，光束质量因子M2x≈2.724；M2y≈2.642，结果表明该光纤具有近似单模的特性，经计算光纤模场直径大于150 μm。
Abstract
The core glass and cladding glass of gain guided index-antiguided (GGIAG) fiber doped with Yb3+ are prepared and Yb3+GGIAG fiber with core diameter of 120 μm, inner cladding diameter 220 μm and outer cladding diameter 260 μm is drawn by the rod-in tube technique. Yb3+GGIAG fiber has a lower core refractive index than the surrounding cladding′s, Δn=-0.00094. The beam quality factors in both horizontal and vertical directions are observed, M2x≈2.724 and M2y≈2.642 when signal light (at 1040 nm) with single mode is propagating in Yb3+GGIAG fiber with different length, which indicates single mode approximation behavior of Yb3+GGIAG fiber. The mode field diameter of Yb3+GGIAG is calculated to be more than 150 μm.
李玮楠, 陆敏, 彭波. 掺Yb3+增益导引折射率反导引光纤的制备及模式特性研究[J]. 光学学报, 2011, 31(s1): s100109. Li Weinan, Lu Min, Peng Bo. Study on Characteristic of Yb3+-Gain Guided Index-Antiguided Fiber[J]. Acta Optica Sinica, 2011, 31(s1): s100109.
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