KR100913744B1 - 광섬유 및 전송 시스템, 및 파장 다중 전송 시스템 - Google Patents
광섬유 및 전송 시스템, 및 파장 다중 전송 시스템 Download PDFInfo
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Abstract
Description
Claims (34)
- 중심부에 코아, 상기 코아의 외주부에 클래드를 갖는 광섬유에 있어서,상기 코아의 굴절율을 복수층으로 하거나 상기 클래드의 굴절율을 복수층으로 하는 것에 의해, 상기 광섬유 내에서 발생하는 음향 모드의 기본 모드의 음향 모드 필드 지름이, 상기 광섬유의 광강도 분포의 광 모드 필드 지름의 2/3 이하인 광섬유.
- 제1항에 있어서,상기 코아의 굴절율을 복수층으로 하고 상기 클래드의 굴절율을 복수층으로 한 광섬유.
- 제1항 또는 제2항에 있어서,상기 음향 모드 필드 지름이, 직경에서 6μm이하인 광섬유.
- 제1항 또는 제2항에 있어서,상기 광섬유의 상기 음향 필드 분포와 광의 파워 분포의 중복을 작게 함으로써 동등한 광학 특성을 가진 광섬유보다도 유도 브릴리언 산란(유도 브릴리앙 산란 또는 유도 브리유앵 산란)의 발생을 작게 한 광섬유.
- 삭제
- 제4항에 있어서,상기 광섬유의 상기 음향 필드 분포를 상기 광 파워 분포보다도 축소함으로써 상기 음향 필드 분포와 상기 광의 파워 분포의 중복을 작게 한 광섬유.
- 삭제
- 삭제
- 제1항 또는 제2항에 있어서,케이블 컷오프 파장이 1260nm 이하, 파장 1310nm에서의 모드 필드 지름이 7.9μm이상 10.2μm이하, 영(0)분산 파장이 1300nm∼1324nm의 범위인 광섬유.
- 제1항 또는 제2항에 있어서,상기 클래드가 굴절율이 상이한 2층 이상으로 이루어지는 광섬유.
- 제10항에 있어서,상기 클래드가 2층으로 이루어지고, 상기 코어에 인접하는 클래드를 제1 클래드, 해당 제1 클래드의 외주에 인접하는 클래드를 제2 클래드, 상기 제1 클래드의 굴절율을 nc1, 상기 제2 클래드의 굴절율을 nc2라고 했을 때, nc1<nc2인 광섬유.
- 제10항에 있어서,상기 클래드가 3층으로 이루어지고, 상기 코어에 인접하는 클래드를 제1 클래드, 해당 제1 클래드의 외주에 인접하는 클래드를 제2 클래드, 해당 제2 클래드의 외주에 인접하는 클래드를 제3 클래드, 상기 제1 클래드의 굴절율을 nc1, 상기 제2 클래드의 굴절율을 nc2, 상기 제3 클래드의 굴절율을 nc3라고 했을 때, nc2<nc1<nc3인 광섬유.
- 삭제
- 삭제
- 삭제
- 제1항 또는 제2항에 기재된 광섬유를 이용하여 아날로그 신호 전송 또는 베이스밴드 전송 또는 광SCM 전송을 하도록 구성된 전송 시스템.
- 제1항 또는 제2항에 기재된 광섬유를 이용하여 아날로그 신호 전송 및/또는 베이스 반복 전송 또는 광SCM 전송과 함께, 데이터 전송 및/또는 음성 전송을 하도록 구성된 파장 다중 전송 시스템.
- 중심부에 코아, 상기 코아의 외주부에 클래드를 갖는 광섬유에 있어서,상기 코아의 굴절율을 복수층으로 하거나 상기 클래드의 굴절율을 복수층으로 하는 것에 의해, 상기 광섬유의 브릴리언 스펙트럼의 주파수가 낮은 쪽에서 i번째의 피크 게인을 g(i), 존재하는 복수의 피크 중 최대 게인을 Max(g)라고 했을 때, g(i)≥[0.1×Max(g)]가 되는 피크가 2개 이상 존재하는 광섬유.
- 제18항에 있어서,상기 코아의 굴절율을 복수층으로 하고 상기 클래드의 굴절율을 복수층으로 한 광섬유.
- 제18항 또는 제19항에 있어서,상기 광섬유 내에서 발생하는 음향 모드의 기본 모드의 음향 모드 필드 지름이, 해당 광섬유의 광강도 분포의 광 모드 필드 지름의 2/3이하인 광섬유.
- 제20항에 있어서,상기 음향 모드 필드 지름이, 직경에서 6μm이하인 광섬유.
- 제18항 또는 제19항에 있어서,상기 광섬유의 음향 필드 분포와 광의 파워 분포의 중복을 작게 함으로써 동등한 광학 특성을 가진 광섬유보다도 유도 브릴리언 산란 발생을 적게 한 광섬유.
- 제22항에 있어서,상기 광섬유의 상기 음향 필드 분포를 상기 광 파워 분포보다도 축소함으로써 상기 음향 필드 분포와 상기 광의 파워 분포의 중복을 작게 한 광섬유.
- 삭제
- 삭제
- 제18항 또는 제19항에 있어서,케이블 컷오프 파장이 1260nm이하, 파장 1310nm에서의 모드 필드 지름이 7.9μm이상 10.2μm이하, 영분산 파장이 1300nm∼1324nm의 범위인 광섬유.
- 제18항 또는 제19항에 있어서,상기 클래드가 굴절율이 상이한 2층 이상으로 이루어지는 광섬유.
- 제27항에 있어서,상기 클래드가 2층으로 이루어지고, 상기 코어에 인접하는 클래드를 제1 클래드, 해당 제1 클래드의 외주에 인접하는 클래드를 제2 클래드, 상기 제1 클래드의 굴절율을 nc1, 상기 제2 클래드의 굴절율을 nc2라고 했을 때, nc1<nc2인 광섬 유.
- 제27항에 있어서,상기 클래드가 3층으로 이루어지고, 상기 코어에 인접하는 클래드를 제1 클래드, 해당 제1 클래드의 외주에 인접하는 클래드를 제2 클래드, 해당 제2 클래드의 외주에 인접하는 클래드를 제3 클래드, 상기 제1 클래드의 굴절율을 nc1, 상기 제2 클래드의 굴절율을 nc2, 상기 제3 클래드의 굴절율을 nc3라고 했을 때, nc2<nc1<nc3인 광섬유.
- 삭제
- 삭제
- 삭제
- 제18항 또는 제19항에 기재된 광섬유를 이용하여 아날로그 신호 전송 또는 베이스밴드 전송 또는 광SCM 전송을 하도록 구성된 전송 시스템.
- 제18항 또는 제19항에 기재된 광섬유를 이용하여 아날로그 신호 전송 및/또는 베이스밴드 전송 또는 광SCM 전송과 함께, 데이터 전송 및/또는 음성 전송을 하도록 구성된 파장 다중 전송 시스템.
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JPJP-P-2004-00321912 | 2004-11-05 | ||
JP2004321912 | 2004-11-05 | ||
JP2005077008 | 2005-03-17 | ||
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EP (2) | EP1808717A4 (ko) |
JP (1) | JPWO2006049279A1 (ko) |
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- 2005-11-07 KR KR1020077010382A patent/KR100913744B1/ko active IP Right Grant
- 2005-11-07 WO PCT/JP2005/020368 patent/WO2006049279A1/ja active Application Filing
- 2005-11-07 EP EP05800377A patent/EP1808717A4/en not_active Withdrawn
- 2005-11-07 EP EP10176024A patent/EP2302428A3/en not_active Withdrawn
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Publication number | Publication date |
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EP1808717A4 (en) | 2010-03-24 |
US7526168B2 (en) | 2009-04-28 |
US20080013906A1 (en) | 2008-01-17 |
EP2302428A2 (en) | 2011-03-30 |
EP2302428A3 (en) | 2011-08-03 |
WO2006049279A1 (ja) | 2006-05-11 |
JPWO2006049279A1 (ja) | 2008-05-29 |
KR20070084041A (ko) | 2007-08-24 |
EP1808717A1 (en) | 2007-07-18 |
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