Theoretical and Experimental Study on Optical Devices Using Highly Nonlinear Photonic Crystal Fibers

高非线性光子晶体光纤光学器件的理论与实验研究

• 批准号: 17360149
• 负责人: KOSHIBA Masanori
• 金额: $ 5.89万
• 依托单位: HOKKAIDO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17360149/
• 关键词: photonic crystal fiber; nonlinear optical fiber; nonlinear optical effect; fiber-type optical device; optical control device; optimum design; ファイバ形光ファイバ; ファイバ形光デバイス

The strong waveguide dispersion in photonic crystal fibers (PCFs) provides unique opportunities for nonlinear optics with a zero-dispersion wavelength far below the limit of~1.3μ m set by the material dispersion of silica. By tuning the air hole diameter, the pitch, and the number of rings of air holes, the strong waveguide dispersion can in principle be used to extend the zero-dispersion wavelength well into the visible, albeit to some extent at the cost of multi-mode operation. We developed an analysis software based on a full-vectorial finite element method and studied in detail the interplay of the zero-dispersion wavelength, the cutoff wavelength, and the leakage loss in the parameter space spanned by the hole diameter, the pitch, and the number of rings of air holes. As a particular result, we identified the values of hole diameter and pitch which facilitate the shortest possible zero-dispersion wavelength, while the fiber is still single-mode for longer wavelengths. In addition, the genetic algorithm integrated with the full-vectorial finite element method was used to optimize the structural parameters of dispersion compensating PCF (DCPCF) Raman amplifiers. The optimized DCPCF provided negative dispersion coefficient, negative dispersion slope, and broadband dispersion compensation over C-band or S-band with gain-flattened Raman characteristics. Furthermore, the Raman gain efficiency and chromatic dispersion of a hole-assisted fiber with and without minimum allowable bending radius were measured. Numerical predictions from the theory were shown to be in good agreement with the experimental results.

强波导纤维（PCF）为非限制AR提供的非线性光学元件提供了独特的机会，该纤维由硅材料分散二氧化硅通过调节气孔直径，螺距和环数来设置的〜1.3μm。空气孔，尽管在一定程度上以多模式操作为代价。跨孔直径，螺距和空气孔的环数。波长。此外，使用全矢量有限元方法整合的遗传算法来优化分解PCF（DCPCF）的结构参数带有增益浅的拉曼特征的带，带有孔辅助的纤维的色素分散，并以最小的允许弯曲进行了测试。

项目成果

Design and analysis of a broadband dispersion compensating photonic crystal fiber Raman amplifier operation in S-band

S波段宽带色散补偿光子晶体光纤拉曼放大器的设计与分析

• 发表时间: 2006
• 期刊: Optics Express 14・8
• 作者: T.Honda;A.Yoshida;J.Yamasaki;K.Saitoh;T.Fujisawa;N.J.Florous;M.Skorobogatiy;M.Skorobogatiy;K.Morikawa;S.K.Varshney;T.Murao;S.K.Varshney
• 通讯作者: S.K.Varshney

Fundamenta characteristics of localized acoustic modes in photonic crysta fibers

光子晶体光纤中局域声模的基本特性

• 发表时间: 2005
• 期刊: IEICE Transactions on Electronics Vol. E88-C, No. 5
• 作者: I.Enomori;K.Saitoh;M.Koshiba
• 通讯作者: M.Koshiba

Bending-insensitive single-mode hole-assisted fibers with reduced splice loss

弯曲不敏感的单模孔辅助光纤，可降低熔接损耗

• 发表时间: 2005
• 期刊: Optics Letters 30・14
• 作者: N.J.Florous;K.Saitoh;S.K.Varshney;M.Koshiba;K.Saitoh;N.J.Florous;M.S.Alam;I.Enomori;Y.Tsuchida;K.Saitoh
• 通讯作者: K.Saitoh

Realization of single-moded broadband air-guiding photonic bandgap fibers

• DOI: 10.1109/lpt.2006.879546
• 发表时间: 2006-08
• 期刊: IEEE Photonics Technology Letters
• 影响因子: 2.6
• 作者: T. Murao;K. Saitoh;M. Koshiba

Design and characterization of single-mode holey fibers with low bending losses

• DOI: 10.1364/opex.13.004770
• 发表时间: 2005-06-13
• 期刊: OPTICS EXPRESS
• 影响因子: 3.8
• 作者: Tsuchida, Y;Saitoh, K;Koshiba, M
• 通讯作者: Koshiba, M