Ns-duration transient Bragg gratings in silica fibers

Avishay Shamir; Aviran Halstuch; Yonatan Sivan; Amiel A. Ishaaya

doi:10.1364/OL.42.004748

Ns-duration transient Bragg gratings in silica fibers

Avishay Shamir, Aviran Halstuch, Yonatan Sivan, Amiel A. Ishaaya

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

We demonstrate, for the first time to our knowledge, fast all-optical switching in standard silica fibers, based on a transient Bragg grating. The grating is implemented in the fiber using an immunization photo-pretreatment process, followed by side illumination with femtosecond laser pulses through a suitable phase mask. Each pulse is nonlinearly absorbed, creating a thermal grating that is washed out by thermal diffusion. Reflections measured from such gratings are characterized by a very fast rise time, nanoseconds duration, and a high extinction ratio.

Original language	English
Pages (from-to)	4748-4751
Number of pages	4
Journal	Optics Letters
Volume	42
Issue number	22
DOIs	https://doi.org/10.1364/OL.42.004748
State	Published - 15 Nov 2017

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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title = "Ns-duration transient Bragg gratings in silica fibers",

abstract = "We demonstrate, for the first time to our knowledge, fast all-optical switching in standard silica fibers, based on a transient Bragg grating. The grating is implemented in the fiber using an immunization photo-pretreatment process, followed by side illumination with femtosecond laser pulses through a suitable phase mask. Each pulse is nonlinearly absorbed, creating a thermal grating that is washed out by thermal diffusion. Reflections measured from such gratings are characterized by a very fast rise time, nanoseconds duration, and a high extinction ratio.",

author = "Avishay Shamir and Aviran Halstuch and Yonatan Sivan and Ishaaya, {Amiel A.}",

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AU - Shamir, Avishay

AU - Halstuch, Aviran

AU - Sivan, Yonatan

AU - Ishaaya, Amiel A.

PY - 2017/11/15

Y1 - 2017/11/15

N2 - We demonstrate, for the first time to our knowledge, fast all-optical switching in standard silica fibers, based on a transient Bragg grating. The grating is implemented in the fiber using an immunization photo-pretreatment process, followed by side illumination with femtosecond laser pulses through a suitable phase mask. Each pulse is nonlinearly absorbed, creating a thermal grating that is washed out by thermal diffusion. Reflections measured from such gratings are characterized by a very fast rise time, nanoseconds duration, and a high extinction ratio.

AB - We demonstrate, for the first time to our knowledge, fast all-optical switching in standard silica fibers, based on a transient Bragg grating. The grating is implemented in the fiber using an immunization photo-pretreatment process, followed by side illumination with femtosecond laser pulses through a suitable phase mask. Each pulse is nonlinearly absorbed, creating a thermal grating that is washed out by thermal diffusion. Reflections measured from such gratings are characterized by a very fast rise time, nanoseconds duration, and a high extinction ratio.

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Ns-duration transient Bragg gratings in silica fibers

Abstract

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