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Ultrafast all-optical differentiators

Ultrafast all-optical differentiators
Ultrafast all-optical differentiators

We report the experimental realization of an ultrafast all-optical temporal differentiator. Differentiation is obtained via all-fiber filtering based on a simple diffraction grating-assisted mode coupler (uniform longperiod fiber grating) that performs full energy conversion at the optical carrier frequency. Due to its high bandwidth, this device allows processing of arbitrary optical signals with sub-picosecond temporal features (down to 180-fs with the specific realizations reported here). Functionality of this device was tested by differentiating a 700-fs Gaussian optical pulse generated from a fiber laser (@ 1535nm). The derivative of this pulse is an odd-symmetry Hermite-Gaussian waveform, consisting of two linked 500-fs-long, π-phase-shifted temporal lobes. This waveform is noteworthy for its application in advanced ultrahigh-speed optical communication systems.

1094-4087
10699-10707
Slavík, Radan
2591726a-ecc0-4d1a-8e1d-4d0fd8da8f7d
Park, Yongwoo
22a5995a-96a1-4fa8-b4c9-330529448a6a
Kulishov, Mykola
8195a009-0031-4252-a375-0963b33849a1
Morandotti, Roberto
ee821db2-ca8a-465e-951b-78b7406f4adf
Azaña, José
412da1ed-3b3e-4580-89fb-73d05a91f044
Slavík, Radan
2591726a-ecc0-4d1a-8e1d-4d0fd8da8f7d
Park, Yongwoo
22a5995a-96a1-4fa8-b4c9-330529448a6a
Kulishov, Mykola
8195a009-0031-4252-a375-0963b33849a1
Morandotti, Roberto
ee821db2-ca8a-465e-951b-78b7406f4adf
Azaña, José
412da1ed-3b3e-4580-89fb-73d05a91f044

Slavík, Radan, Park, Yongwoo, Kulishov, Mykola, Morandotti, Roberto and Azaña, José (2006) Ultrafast all-optical differentiators. Optics Express, 14 (22), 10699-10707. (doi:10.1364/OE.14.010699).

Record type: Article

Abstract

We report the experimental realization of an ultrafast all-optical temporal differentiator. Differentiation is obtained via all-fiber filtering based on a simple diffraction grating-assisted mode coupler (uniform longperiod fiber grating) that performs full energy conversion at the optical carrier frequency. Due to its high bandwidth, this device allows processing of arbitrary optical signals with sub-picosecond temporal features (down to 180-fs with the specific realizations reported here). Functionality of this device was tested by differentiating a 700-fs Gaussian optical pulse generated from a fiber laser (@ 1535nm). The derivative of this pulse is an odd-symmetry Hermite-Gaussian waveform, consisting of two linked 500-fs-long, π-phase-shifted temporal lobes. This waveform is noteworthy for its application in advanced ultrahigh-speed optical communication systems.

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More information

Published date: October 2006

Identifiers

Local EPrints ID: 456634
URI: http://eprints.soton.ac.uk/id/eprint/456634
ISSN: 1094-4087
PURE UUID: ad9d2677-f74e-4c15-b1a3-2ca92561c231
ORCID for Radan Slavík: ORCID iD orcid.org/0000-0002-9336-4262

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Date deposited: 05 May 2022 17:00
Last modified: 17 Mar 2024 03:16

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Contributors

Author: Radan Slavík ORCID iD
Author: Yongwoo Park
Author: Mykola Kulishov
Author: Roberto Morandotti
Author: José Azaña

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