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Titolo:
Electrically controllable long-period liquid crystal fiber gratings
Autore:
Jeong, Y; Yang, BC; Lee, B; Seo, HS; Choi, S; Oh, K;
Indirizzi:
Seoul Natl Univ, Sch Elect Engn, Seoul 151742, South Korea Seoul Natl Univ Seoul South Korea 151742 Engn, Seoul 151742, South Korea Kwangju Inst Sci & Technol, Dept Informat & Commun, Kwangju, South Korea Kwangju Inst Sci & Technol Kwangju South Korea un, Kwangju, South Korea
Titolo Testata:
IEEE PHOTONICS TECHNOLOGY LETTERS
fascicolo: 5, volume: 12, anno: 2000,
pagine: 519 - 521
SICI:
1041-1135(200005)12:5<519:ECLLCF>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Keywords:
coupled-mode analysis; fiber gratings; liquid crystal; optical fiber communication; optical fiber devices; tunable filters;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
9
Recensione:
Indirizzi per estratti:
Indirizzo: Jeong, Y Seoul Natl Univ, Sch Elect Engn, Seoul 151742, South Korea Seoul Natl Univ Seoul South Korea 151742 ul 151742, South Korea
Citazione:
Y. Jeong et al., "Electrically controllable long-period liquid crystal fiber gratings", IEEE PHOTON, 12(5), 2000, pp. 519-521

Abstract

An electrically controllable fiber-optic filter for broad-band rejection has been demonstrated by periodically poling a liquid-crystalline core in a hollow-core fiber by means of an external long-period-combed electrode. Theperiodically poled liquid-crystalline core in a period of 483 mu m couplesthe fundamental core mode to the leaky cladding modes. A maximum transmission loss dip of approximately 15-nm bandwidth and 6-dB band rejection has been obtained for a nonpolarized light with a combed 250-V external voltage modulation. The experimental result matches well with a numerical expectation, which has been analyzed by the discretized coupled-mode theory for an anisotropic perturbation.

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Documento generato il 21/09/20 alle ore 11:22:51