Two-wave mixing amplification of femtosecond laser pulses at 800nm in Rh:BaTiO3 photorefractive crystal

Md Masudul Kabir, Daiki Ito, Yu Oishi, Fumihiko Kannari

    研究成果: Article査読

    抄録

    We report the photorefractive (PR) two-wave mixing amplification (TWMA) of broadband femtosecond laser pulses in a Rh:BaTiO3 crystal by one-photon absorption. Two-wave mixing (TWM) is performed in the crystal using 30fs laser pulses at an 800 nm wavelength. A maximum two-wave mixing amplification gain coefficient of ∼11/cm was achieved using a chirped volume grating written at a grating spacing of 5 μm. The broadband spectrum and the original phase characteristics of the signal pulse are also maintained. Beam fanning for the femtosecond pulse laser is less pronounced than that for the cw laser, facilitating a higher two-wave mixing gain for femtosecond pulse lasers.

    本文言語English
    ジャーナルJapanese journal of applied physics
    50
    10 PART 1
    DOI
    出版ステータスPublished - 2011 10月 1

    ASJC Scopus subject areas

    • 工学(全般)
    • 物理学および天文学(全般)

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