Mode Synthesis in Photonic Bandgap Fibers
Mode Synthesis in Photonic Bandgap Fibers
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发表时间：
2010
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通讯作者：
Q. Hu
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作者：
Q. Hu
我们成功地合成了三个单独的模式，HE11，TE01和TE02的光子带隙光纤在近红外波长的传输。我们测量了光纤带隙内外的HE11和TE01模的传播损耗，表明TE01确实是损耗最低的模，损耗较小，并且具有比HE11宽得多的带隙。我们研究的HE11和TE01模式的叠加使用纯相位的方法，并讨论所产生的简并问题。我们通过将叠加图像分解成低能本征模（m < 3）来分析这些叠加，并计算每个本征模在线性叠加中的贡献。我们发现，HE11和TE01的贡献表现在他们的叠加正弦曲线。
We report the successful synthesis of three individual modes, HE11, TE01, and TE02 for transmission in photonic band gap fibers at near infrared wavelengths. We measure the propagation losses of the HE11 and TE01 modes both inside and outside the band gap of the fiber, show that the TE01 is indeed the lowest loss mode, and is less lossy and has a much wider band gap than the HE11. We study the superpostions of the HE11 and TE01 modes using the pure phase approach, and discuss the degeneracy problem that arises. We analyze these superpositions by decomposing the superposed images into low energy eigenmodes (m < 3), and compute each of the eigenmode''s contribution in the linear superposition. We show that the contributions of the HE11 and TE01 behave sinusoidally in their superpostions.