Terahertz-bandwidth high-order temporal differentiators based on phase-shifted long-period fiber gratings
Terahertz-bandwidth high-order temporal differentiators based on phase-shifted long-period fiber gratings
We report the fabrication of a pi -phase-shifted long-period fiber grating (LPFG) capable of operating as a terahertz-bandwidth second-order temporal differentiator. We demonstrate its operation experimentally by differentiating subpicosecond long optical pulses. A new scheme for achieving high-order photonic temporal differentiation based on LPFG filters is also proposed and demonstrated. In particular, we prepared a LPFG based first-order differentiator that was frequency and bandwidth matched to the second-order device and demonstrated the cascadability of these devices leading to the implementation of a third-order differentiator. By also employing these devices in reflection, up to the fifth-order differentiation is demonstrated experimentally.
3116-3119
Slavík, Radan
2591726a-ecc0-4d1a-8e1d-4d0fd8da8f7d
Park, Yongwoo
22a5995a-96a1-4fa8-b4c9-330529448a6a
Kulishov, Mykola
8195a009-0031-4252-a375-0963b33849a1
Azaña, Jose
05a3910c-4978-4606-aeb8-69781b7bdbf4
15 October 2009
Slavík, Radan
2591726a-ecc0-4d1a-8e1d-4d0fd8da8f7d
Park, Yongwoo
22a5995a-96a1-4fa8-b4c9-330529448a6a
Kulishov, Mykola
8195a009-0031-4252-a375-0963b33849a1
Azaña, Jose
05a3910c-4978-4606-aeb8-69781b7bdbf4
Slavík, Radan, Park, Yongwoo, Kulishov, Mykola and Azaña, Jose
(2009)
Terahertz-bandwidth high-order temporal differentiators based on phase-shifted long-period fiber gratings.
Optics Letters, 34 (20), .
(doi:10.1364/OL.34.003116).
Abstract
We report the fabrication of a pi -phase-shifted long-period fiber grating (LPFG) capable of operating as a terahertz-bandwidth second-order temporal differentiator. We demonstrate its operation experimentally by differentiating subpicosecond long optical pulses. A new scheme for achieving high-order photonic temporal differentiation based on LPFG filters is also proposed and demonstrated. In particular, we prepared a LPFG based first-order differentiator that was frequency and bandwidth matched to the second-order device and demonstrated the cascadability of these devices leading to the implementation of a third-order differentiator. By also employing these devices in reflection, up to the fifth-order differentiation is demonstrated experimentally.
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Published date: 15 October 2009
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Local EPrints ID: 78909
URI: http://eprints.soton.ac.uk/id/eprint/78909
ISSN: 0146-9592
PURE UUID: eacb44df-9239-464a-a6c4-f1897f062445
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Date deposited: 16 Mar 2010
Last modified: 14 Mar 2024 02:54
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Author:
Yongwoo Park
Author:
Mykola Kulishov
Author:
Jose Azaña
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