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非均匀微结构光纤中双折射现象的研究

胡明列 王清月 栗岩峰 倪晓昌 张志刚 王 专 柴 路 侯蓝田 李曙光 周桂耀

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非均匀微结构光纤中双折射现象的研究

胡明列, 王清月, 栗岩峰, 倪晓昌, 张志刚, 王 专, 柴 路, 侯蓝田, 李曙光, 周桂耀

Birefringence phenomena in a random distributed microstructure fiber

Hu Ming-Lie, Wang Qing-Yue, Li Yan-Feng, Ni XiaoChang, Zhang Zhi-Gang, Wang Zhuan, Chai Lu, Hou Lan-Tian, Li Shu-Guang, Zhou Gui-Yao
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  • 报道了利用飞秒脉冲激光与非均匀微结构光纤相互作用中产生超连续光谱后在非均匀微结构光纤传输中双折射拍频现象的研究.利用35?fs的飞秒激光脉冲在高双折射微结构光纤中的传输过程中直接观察到了拍频现象.并利用有限元方法对该光纤进行了模拟计算分析,计算得出在600?nm处拍频长度为毫米量级.所得结果与实验一致.
    A random distributed microstructure fiber in which strong asymmetry was introduced around a puresilica core was reported. Femtosecond laser pulses with duration of 35?fs from a Ti:sapphire laser oscillator were coupled into this fiber, and then periodic color rings were observed from the side of the fiber when the supercontinuum light propagated along the fiber. We attributed this phenomenon to the polarization beating of the supercontinuum light in this highly birefringent microstructure fiber. Measurement showed that the fiber had a beat length of approximately 1?mm at a central wavelength of 600?nm, which is in good agreement with the result of calculation. A new method is proposed to measure the beat length directly in a highly birefringent microstructure fiber.
    • 基金项目: 国家重点基础研究专项基金(批准号:G1999075201,2003CB314904)、国家自然科学基金(批准号:60278003)和国家高技术研究发展计划(批准号:2003AA311010)资助的课题
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  • 文章访问数:  6739
  • PDF下载量:  879
  • 被引次数: 0
出版历程
  • 收稿日期:  2003-11-21
  • 修回日期:  2004-07-01
  • 刊出日期:  2004-06-05

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