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Fabrication and characterization of a broadband long-period grating on a hollow optical fiber with femtosecond laser pulses

Fabrication and characterization of a broadband long-period grating on a hollow optical fiber with femtosecond laser pulses
Fabrication and characterization of a broadband long-period grating on a hollow optical fiber with femtosecond laser pulses
We have fabricated broadband long-period gratings (LPGs) on hollow optical fibers (HOFs) by 15 corrugating slots with various widths by point-by-point exposure of a Ti:sapphire femotosecond laser. The corrugated LPGs showed unique broadband rejection whose FWHM extended to 190 nm with a low insertion loss of less than 1 dB. The maximum coupling strength was 8.5 dB, which is a significant improvement in comparison with previous HOF acousto-optic tunable filters (AOTFs). The center wavelength and coupling strength of the resonant peak could be systematically controlled by modulating the width of the corrugation.
0374-4884
3814-3817
Ha, Woosung
1a0a2de5-62a3-460c-84ad-a7abc0d78142
Oh, Kyunghwan
b4a576b7-fc35-4c55-aa2a-50b3f3260d1b
Jung, Yongmin
6685e51e-be47-4c96-8c4b-65aee3b5126d
Kim, Jun Ki
22ca8c39-567d-4131-8d28-07c4668ed890
Shin, Woojin
c75c8750-74b3-4c61-b4e3-9765affa1d78
Sohn, Ik-Bu
f8c7b5ae-284a-4168-91ff-f04b4d0717aa
Ko, Do-Kyeong
1434b7ce-c1e6-4ed1-aa93-62ce74f40ac6
Lee, Jongmin
80aeed45-3d4e-4692-83c4-9373fefcf14e
Ha, Woosung
1a0a2de5-62a3-460c-84ad-a7abc0d78142
Oh, Kyunghwan
b4a576b7-fc35-4c55-aa2a-50b3f3260d1b
Jung, Yongmin
6685e51e-be47-4c96-8c4b-65aee3b5126d
Kim, Jun Ki
22ca8c39-567d-4131-8d28-07c4668ed890
Shin, Woojin
c75c8750-74b3-4c61-b4e3-9765affa1d78
Sohn, Ik-Bu
f8c7b5ae-284a-4168-91ff-f04b4d0717aa
Ko, Do-Kyeong
1434b7ce-c1e6-4ed1-aa93-62ce74f40ac6
Lee, Jongmin
80aeed45-3d4e-4692-83c4-9373fefcf14e

Ha, Woosung, Oh, Kyunghwan, Jung, Yongmin, Kim, Jun Ki, Shin, Woojin, Sohn, Ik-Bu, Ko, Do-Kyeong and Lee, Jongmin (2008) Fabrication and characterization of a broadband long-period grating on a hollow optical fiber with femtosecond laser pulses. Journal of the Korean Physical Society, 53 (6), 3814-3817.

Record type: Article

Abstract

We have fabricated broadband long-period gratings (LPGs) on hollow optical fibers (HOFs) by 15 corrugating slots with various widths by point-by-point exposure of a Ti:sapphire femotosecond laser. The corrugated LPGs showed unique broadband rejection whose FWHM extended to 190 nm with a low insertion loss of less than 1 dB. The maximum coupling strength was 8.5 dB, which is a significant improvement in comparison with previous HOF acousto-optic tunable filters (AOTFs). The center wavelength and coupling strength of the resonant peak could be systematically controlled by modulating the width of the corrugation.

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Published date: 3 September 2008

Identifiers

Local EPrints ID: 378537
URI: http://eprints.soton.ac.uk/id/eprint/378537
ISSN: 0374-4884
PURE UUID: 3d7cc25a-bc86-413c-91d6-e4991154cba9
ORCID for Yongmin Jung: ORCID iD orcid.org/0000-0002-9054-4372

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Date deposited: 30 Jun 2015 12:37
Last modified: 09 Jan 2022 03:29

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Contributors

Author: Woosung Ha
Author: Kyunghwan Oh
Author: Yongmin Jung ORCID iD
Author: Jun Ki Kim
Author: Woojin Shin
Author: Ik-Bu Sohn
Author: Do-Kyeong Ko
Author: Jongmin Lee

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