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

Woosung Ha; Kyunghwan Oh; Yongmin Jung; Jun Ki Kim; Woojin Shin; Ik Bu Sohn; Do Kyeong Ko; Jongmin Lee

doi:10.3938/jkps.53.3814

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

Woosung Ha, Kyunghwan Oh, Yongmin Jung, Jun Ki Kim, Woojin Shin, Ik Bu Sohn, Do Kyeong Ko, Jongmin Lee

Department of Physics

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

2 Citations (Scopus)

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.

Original language	English
Pages (from-to)	3814-3817
Number of pages	4
Journal	Journal of the Korean Physical Society
Volume	53
Issue number	6 PART 1
DOIs	https://doi.org/10.3938/jkps.53.3814
Publication status	Published - 2008 Dec

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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

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.",

author = "Woosung Ha and Kyunghwan Oh and Yongmin Jung and Kim, {Jun Ki} and Woojin Shin and Sohn, {Ik Bu} and Ko, {Do Kyeong} and Jongmin Lee",

year = "2008",

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doi = "10.3938/jkps.53.3814",

language = "English",

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T1 - Fabrication and characterization of a broadband long-period grating on a hollow optical fiber with femtosecond laser pulses

AU - Ha, Woosung

AU - Oh, Kyunghwan

AU - Jung, Yongmin

AU - Kim, Jun Ki

AU - Shin, Woojin

AU - Sohn, Ik Bu

AU - Ko, Do Kyeong

AU - Lee, Jongmin

PY - 2008/12

Y1 - 2008/12

N2 - 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.

AB - 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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JF - Journal of the Korean Physical Society

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ER -

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

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