Chinese Journal of Lasers, Volume. 33, Issue 7, 918(2006)

Diffraction Self-Enhancement by Two Wave Mixing of Femtosecond Pulse in LiNbO3:Fe

[in Chinese]*, [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
Author Affiliations
  • [in Chinese]
  • show less

    Writing a grating by femtosecond coherent pulses, there was an erasure of grating during the reading process, so it is important for research a self-enhancement method to restrain the erasure. In the configuration of femtosecond two waves mixing, two pulses wrote a grating in a LiNbO3:Fe, there was a self-enhancement effect by using a special method that controlled the sequence of femtosecond pulse′s writing: after the two pulse′s writing, single pulse wrote the old grating which made the self-enhancement continue 1 h. At the same time the other self-enhancement effect had been found when the grating was unsaturated and the input two pulses changed to a single pulse, and this self-enhancement continued 2 h. Then the research on the relationship between the writing ultrafast pulse and the writing time had been done, finally the reason analysis had been done with the modulation of femtosecond pulse. This study showed that the diffracted pulse light interacting with writing pulse increased the level of mixing, then a new grating had been written, which boosted up the old one, so that diffraction efficiency increased. The experiment proved that the grating erasure written by femtosecond pulse can be restrained, which was good news for a reading effect of hologram writing.

    Tools

    Get Citation

    Copy Citation Text

    [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. Diffraction Self-Enhancement by Two Wave Mixing of Femtosecond Pulse in LiNbO3:Fe[J]. Chinese Journal of Lasers, 2006, 33(7): 918

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category: Laser physics

    Received: Oct. 21, 2005

    Accepted: --

    Published Online: Aug. 8, 2006

    The Author Email: (anbowtj@mail.nankai.edu.cn)

    DOI:

    Topics