Suppression of the cladding mode interference in cascaded long period fiber gratings with liquid crystal claddings

Hak Rin Kim; Yonghyun Kim; Yoonchan Jeong; Seungin Baek; Yong Wook Lee; Byoungho Lee; Sin Doo Lee

doi:10.1080/15421400490438898

Suppression of the cladding mode interference in cascaded long period fiber gratings with liquid crystal claddings

Hak Rin Kim, Yonghyun Kim, Yoonchan Jeong, Seungin Baek, Yong Wook Lee, Byoungho Lee, Sin Doo Lee

School of Electronics Engineering

Seoul National University

Research output: Contribution to journal › Conference article › peer-review

8 Scopus citations

Abstract

We propose a cascaded structure of long period fiber gratings (LPFGs) with a liquid crystal (LC) as a surrounding medium. In this structure, the electro-optic tuning properties of each LPFG and the interferences between the spectra of LPFGs are studied. Since the electrically tunable cladding modes are radiation modes which are partially guided by Fresnel reflection, the modal interferences among the cascaded LPFGs are eliminated. The cascaded structure of LPFGs with LC claddings is suitable for arbitrary loss filters that compensate for nonuniform optical gain in an erbium doped fiber.

Original language	English
Pages (from-to)	399/[2535]-406/[2542]
Journal	Molecular Crystals and Liquid Crystals
Volume	413
DOIs	https://doi.org/10.1080/15421400490438898
State	Published - 2004
Event	Proceedings of the 19th International Liquid Crystal Conference, ILCC2002 - Edinburgh, United Kingdom Duration: 30 Jun 2002 → 5 Jul 2002

Keywords

Cascaded long period fiber gratings
Interference
Liquid crystal cladding
Radiation mode coupling
Tunability

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10.1080/15421400490438898

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title = "Suppression of the cladding mode interference in cascaded long period fiber gratings with liquid crystal claddings",

abstract = "We propose a cascaded structure of long period fiber gratings (LPFGs) with a liquid crystal (LC) as a surrounding medium. In this structure, the electro-optic tuning properties of each LPFG and the interferences between the spectra of LPFGs are studied. Since the electrically tunable cladding modes are radiation modes which are partially guided by Fresnel reflection, the modal interferences among the cascaded LPFGs are eliminated. The cascaded structure of LPFGs with LC claddings is suitable for arbitrary loss filters that compensate for nonuniform optical gain in an erbium doped fiber.",

keywords = "Cascaded long period fiber gratings, Interference, Liquid crystal cladding, Radiation mode coupling, Tunability",

author = "Kim, {Hak Rin} and Yonghyun Kim and Yoonchan Jeong and Seungin Baek and Lee, {Yong Wook} and Byoungho Lee and Lee, {Sin Doo}",

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doi = "10.1080/15421400490438898",

language = "English",

volume = "413",

pages = "399/[2535]--406/[2542]",

journal = "Molecular Crystals and Liquid Crystals",

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note = "Proceedings of the 19th International Liquid Crystal Conference, ILCC2002 ; Conference date: 30-06-2002 Through 05-07-2002",

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TY - JOUR

T1 - Suppression of the cladding mode interference in cascaded long period fiber gratings with liquid crystal claddings

AU - Kim, Hak Rin

AU - Kim, Yonghyun

AU - Jeong, Yoonchan

AU - Baek, Seungin

AU - Lee, Yong Wook

AU - Lee, Byoungho

AU - Lee, Sin Doo

PY - 2004

Y1 - 2004

N2 - We propose a cascaded structure of long period fiber gratings (LPFGs) with a liquid crystal (LC) as a surrounding medium. In this structure, the electro-optic tuning properties of each LPFG and the interferences between the spectra of LPFGs are studied. Since the electrically tunable cladding modes are radiation modes which are partially guided by Fresnel reflection, the modal interferences among the cascaded LPFGs are eliminated. The cascaded structure of LPFGs with LC claddings is suitable for arbitrary loss filters that compensate for nonuniform optical gain in an erbium doped fiber.

AB - We propose a cascaded structure of long period fiber gratings (LPFGs) with a liquid crystal (LC) as a surrounding medium. In this structure, the electro-optic tuning properties of each LPFG and the interferences between the spectra of LPFGs are studied. Since the electrically tunable cladding modes are radiation modes which are partially guided by Fresnel reflection, the modal interferences among the cascaded LPFGs are eliminated. The cascaded structure of LPFGs with LC claddings is suitable for arbitrary loss filters that compensate for nonuniform optical gain in an erbium doped fiber.

KW - Cascaded long period fiber gratings

KW - Interference

KW - Liquid crystal cladding

KW - Radiation mode coupling

KW - Tunability

UR - http://www.scopus.com/inward/record.url?scp=12844267540&partnerID=8YFLogxK

U2 - 10.1080/15421400490438898

DO - 10.1080/15421400490438898

M3 - Conference article

AN - SCOPUS:12844267540

SN - 1542-1406

VL - 413

SP - 399/[2535]-406/[2542]

JO - Molecular Crystals and Liquid Crystals

JF - Molecular Crystals and Liquid Crystals

T2 - Proceedings of the 19th International Liquid Crystal Conference, ILCC2002

Y2 - 30 June 2002 through 5 July 2002

ER -

Suppression of the cladding mode interference in cascaded long period fiber gratings with liquid crystal claddings

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