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Wideband tunable fiber short-pass filter based on side-polished fiber with dispersive polymer overlay

机译:基于带有分散聚合物覆盖层的侧抛光光纤的宽带可调谐光纤短通滤波器

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摘要

It is known that dispersive fiber has an LP_(01) mode cutoff wavelength that acts as a wavelength filter. With a dispersive polysiloxane polymer overlay on a side-polished single-mode fiber, an in-line tunable fiber short-pass filter with a tuning range of ~400 nm (1250-1650 nm) and a temperature variation of 15℃ was demonstrated. The rejection efficiency was greater than 50 dB, whereas the insertion and polarization-dependent losses were below 0.26 and 0.09 dB, respectively.
机译:已知色散光纤具有用作波长滤波器的LP_(01)模式截止波长。通过将分散的聚硅氧烷聚合物覆盖在侧面抛光的单模光纤上,演示了调谐范围为〜400 nm(1250-1650 nm),温度变化为15℃的在线可调光纤短通滤波器。抑制效率大于50 dB,而插入损耗和偏振相关损耗分别低于0.26和0.09 dB。

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