Grating formation in Fe: LiNbO3 photorefractive crystal by chirped 800-nm femtosecond laser pulses operated at 1 kHz

Md Masudul Kabir, Yu Oishi, Fumihiko Kannari

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We demonstrate an extension of forming a photorefractive volume grating in an Fe:LiNbO3 crystal by chirped intense femtosecond laser pulses generated from a Ti:Al2O3 regenerative amplifier at 1 kHz. We confirm that one-photon absorption is still dominant in the Fe:LiNbO3 crystal up to 70 GW/cm2. To generate a photorefractive grating at such a low laser repetition rate within a practical writing time, the laser pulse intensity is increased to >30 GW/cm2. Furthermore, we demonstrate the amplification of femtosecond laser pulses by the chirped volume grating that is written in the Fe:LiNbO3 by two-wave mixing.

Original languageEnglish
Pages (from-to)212-217
Number of pages6
JournalOptical Review
Volume18
Issue number2
DOIs
Publication statusPublished - 2011 Mar

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gratings
pulses
crystals
lasers
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photons

Keywords

  • holographic volume grating
  • photorefractive effect
  • two-wave mixing
  • ultrashort laser pulse

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Grating formation in Fe : LiNbO3 photorefractive crystal by chirped 800-nm femtosecond laser pulses operated at 1 kHz. / Kabir, Md Masudul; Oishi, Yu; Kannari, Fumihiko.

In: Optical Review, Vol. 18, No. 2, 03.2011, p. 212-217.

Research output: Contribution to journalArticle

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