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

doi:10.1007/s10043-011-0044-9

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 journal › Article › peer-review

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 language	English
Pages (from-to)	212-217
Number of pages	6
Journal	Optical Review
Volume	18
Issue number	2
DOIs	https://doi.org/10.1007/s10043-011-0044-9
Publication status	Published - 2011 Mar 1

Keywords

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

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

Access to Document

10.1007/s10043-011-0044-9

Cite this

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

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.",

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T1 - Grating formation in Fe:LiNbO3 photorefractive crystal by chirped 800-nm femtosecond laser pulses operated at 1 kHz

AU - Kabir, Md Masudul

AU - Oishi, Yu

AU - Kannari, Fumihiko

PY - 2011/3/1

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N2 - 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.

AB - 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.

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KW - photorefractive effect

KW - two-wave mixing

KW - ultrashort laser pulse

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