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Generation of Anti-Stokes Line in Fundamental Mode of Photonic Crystal Fibre |
WANG Wei1, HOU Lan-Tian1,2, LIU Zhao-Lun1, ZHOU Gui-Yao 1,2 |
1Institute of Infrared Optical Fibres and Sensors, Yanshan University, Qinhuangdao 0660042Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004 |
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Cite this article: |
WANG Wei, HOU Lan-Tian, LIU Zhao-Lun et al 2008 Chin. Phys. Lett. 25 3682-3684 |
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Abstract A photonic crystal fibre (PCF) with zero-dispersion wavelength around 800nm is designed and fabricated. Simulated results show that the zero-dispersion wavelength of fundamental mode for this PCF is at 826nm, and phase-matched four-wave mixing can be achieved in fundamental mode. Using 200fs Ti:sapphire laser with central wavelength at 810nm as pump, the anti-Stokes line around 610nm is generated efficiently. The output signal has a Gaussian-like profile, which indicates that the anti-Stokes signal is in the fundamental mode of the PCF. The energy of anti-Stokes signal is higher than that of residual pump laser and the maximum ratio of the anti-Stokes signal to the pump component in the output spectrum is estimated to be 1.2.
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Keywords:
42.65.-k
42.65.Ky
42.79.Ny
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Received: 21 May 2008
Published: 26 September 2008
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PACS: |
42.65.-k
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(Nonlinear optics)
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42.65.Ky
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(Frequency conversion; harmonic generation, including higher-order harmonic generation)
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42.79.Ny
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