Study on generation and propagation of sub-20 femto-second optical fiber soliton pulses

亚20飞秒光纤孤子脉冲的产生与传播研究

• 批准号: 13450136
• 负责人: TSUCHIYA Masahiro
• 金额: $ 4.29万
• 依托单位: National Institute of Information and Communications Technology (2003)The University of Tokyo (2001-2002)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-13450136/
• 关键词: Optical fiber soliton; femto second; higher order dispersion; Pulse compression; ultrashort time period; supercontinuum generation; Ultrafast photonics; pulse propagation; 光ファイバ; 光ソリトン; フェムト秒技術; スーパーコンティニューム; 分散平坦化光ファイバ; パラメトリックプロセス

The effect of higher order fiber-optical soliton is often used for ultrashort pulse compression. Indeed, 20 femto-second (fs) pulse generation or shorter is possible through the method, which corresponds to only four cycles of 1500 nm electromagnetic wave. In order to clarify the ultimate performance and its limiting factors in the lower boundary of the time domain, we have utilized the phenomena of higher order fiber-optical soliton compression. Furthermore, we discussed on the framework for optimization of the spectral shapes thus generated for optical communication light source of multiple carriers. We have reached the conclusion, which includes some newly achieved knowledge, that the fourth order dispersion is an important feature for the ultimate characteristics of ultrashort fiber-optic soliton pulses since it leads to the limiting factor in the time domain and affects the high bandwidth super-continuum generation. The followings are the results obtained in the present research.( … More 1)The shortest fiber optic soliton pulse ever reported has been successfully derived. Its time period is 15.6 fs. We believe that the new temporal area in the fiber-optic ultrafast photonics has been established.(2)We pointed out that the ultimate pulse width of fiber-optical soliton is restricted by the fourth order dispersion through the anomalous dispersion bandwidth. This has been confirmed experimentally by means of systematic investigation on temporal widths of generated pulsed under a variety of conditions. Indeed, this is the first clear evidence that the fourth order dispersion effect of an optical fiber appears in a realistic and clear manner.(3)On the other hand, we found out experimentally that the fourth order dispersion effect can give rise to efficient parametric gain generation of broadband. Also, the theoretical explanation for the phenomena has been established.(4)On the basis of the results of (3), we demonstrated a few new schemes for broadband optical spectrum generation methods. Less

高阶光线的效果通常是通过该方法进行超短脉冲压缩的。多载体的光源。时间域并影响最短的firtst firtst firtst firtst tic soliton脉冲尽管在各种条件下，这是对产生的时间宽度的，这是第四阶段的限制。光纤以现实和清晰的方式出现。宽带光谱生成。

项目成果

土屋昌弘: "ディジタルフォトにクスの要素技術:新規SC光源とフォトニックインバータ"化学技術振興事業団合同シンポジウム「光子機能制御研究のフロンティア」講演資料集. 54-61 (2001)

Masahiro Tsuchiya：“数字光子学的基本技术：新型 SC 光源和光子逆变器”日本化学技术机构联合研讨会“光子功能控制研究前沿”演示材料集 54-61 (2001)。

K.Igarashi, S.Saito, M.Kishi, M.Tsuchiya: "Investigation on fiber-soliton compression into sub-20 fs regime in dispersion-flattened fiber"Japanese Journal of Applied Physics. 43/01. 132-136 (2004)

K.Igarashi、S.Saito、M.Kishi、M.Tsuchiya：“色散平坦光纤中光纤孤子压缩至 20 fs 以下范围的研究”日本应用物理学杂志。

齊藤聡: "分散平坦化ファイバを用いる同期励起パラメトリック発振器"2003年電子情報通信学会総合大会講演論文集. C-4-28. 314 (2003)

Satoshi Saito：“使用色散平坦光纤的同步泵浦参量振荡器”2003 年 IEICE 大会记录 (2003)。

五十嵐浩司: "4次分散による異常分散帯域制限とサブ20fsDFFソリトン圧縮に対する影響"第63回応用物理学会学術講演会論文集. 27a-YA-7/III. 949 (2002)

Koji Igarashi：“四阶色散导致的异常色散带限制及其对亚 20fs DFF 孤子压缩的影响”第 63 届日本应用物理学会年会记录（27a-YA-7/III. ）

T.Yoshida, T.Hoshida, Y.Nasu, M.Kishi, H.Tsuchiya: "Experimental Investigation no Carrier Dynamics in SCH-MQW Waveguide Saturable Absorber of Passively Mode-locked Monolithic Laser Diode"Optical and Quantum Electronics. 33/7. 735-743 (2001)

T.Yoshida、T.Hoshida、Y.Nasu、M.Kishi、H.Tsuchiya：“被动锁模单片激光二极管的 SCH-MQW 波导可饱和吸收体中无载流子动力学的实验研究”光学和量子电子学。