KR100323058B1 - 광 신호 추가 및 추출 장치 - Google Patents
광 신호 추가 및 추출 장치 Download PDFInfo
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- KR100323058B1 KR100323058B1 KR1020000023087A KR20000023087A KR100323058B1 KR 100323058 B1 KR100323058 B1 KR 100323058B1 KR 1020000023087 A KR1020000023087 A KR 1020000023087A KR 20000023087 A KR20000023087 A KR 20000023087A KR 100323058 B1 KR100323058 B1 KR 100323058B1
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- 230000003287 optical effect Effects 0.000 title claims abstract description 281
- 239000013307 optical fiber Substances 0.000 claims abstract description 105
- 238000000926 separation method Methods 0.000 claims abstract description 40
- 238000000605 extraction Methods 0.000 claims description 10
- 230000005496 eutectics Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 claims 3
- 239000000284 extract Substances 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29346—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by wave or beam interference
- G02B6/29361—Interference filters, e.g. multilayer coatings, thin film filters, dichroic splitters or mirrors based on multilayers, WDM filters
- G02B6/29362—Serial cascade of filters or filtering operations, e.g. for a large number of channels
- G02B6/29364—Cascading by a light guide path between filters or filtering operations, e.g. fibre interconnected single filter modules
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29346—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by wave or beam interference
- G02B6/29361—Interference filters, e.g. multilayer coatings, thin film filters, dichroic splitters or mirrors based on multilayers, WDM filters
- G02B6/2937—In line lens-filtering-lens devices, i.e. elements arranged along a line and mountable in a cylindrical package for compactness, e.g. 3- port device with GRIN lenses sandwiching a single filter operating at normal incidence in a tubular package
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29379—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device
- G02B6/2938—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM
- G02B6/29382—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM including at least adding or dropping a signal, i.e. passing the majority of signals
- G02B6/29383—Adding and dropping
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0202—Arrangements therefor
- H04J14/0206—Express channels arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0202—Arrangements therefor
- H04J14/021—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM]
- H04J14/0212—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM] using optical switches or wavelength selective switches [WSS]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0202—Arrangements therefor
- H04J14/0209—Multi-stage arrangements, e.g. by cascading multiplexers or demultiplexers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0202—Arrangements therefor
- H04J14/0213—Groups of channels or wave bands arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
- H04Q2011/0007—Construction
- H04Q2011/0009—Construction using wavelength filters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
- H04Q2011/0007—Construction
- H04Q2011/0024—Construction using space switching
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
- H04Q2011/0007—Construction
- H04Q2011/0026—Construction using free space propagation (e.g. lenses, mirrors)
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electromagnetism (AREA)
- Optical Communication System (AREA)
Abstract
Description
Claims (5)
- 광축으로부터 동일 거리에 서로 대칭되게 위치되어 있으며, 적어도 하나 이상의 광 신호를 전송하는 제1 및 제2 광섬유를 포함하는 제1 이심 페룰;광축으로부터 동일 거리에 서로 대칭되게 위치되어 있으며, 적어도 하나 이상의 광 신호를 전송하는 제3 및 제4 광섬유를 포함하는 제2 이심 페룰;특정 파장의 광 신호만을 선택적으로 투과시키는 파장 분리 필터;상기 제1 이심 페룰의 하나의 광섬유로부터 입력되는 광 신호를 평행광으로 변환하여 상기 파장 분리 필터의 제1 면으로 출력시키고, 상기 파장 분리 필터로부터 입력되는 광 신호를 집속하여 상기 제1 이심 페룰의 나머지 광섬유로 출력시키는 제1 렌즈; 및상기 파장 분리 필터로부터 입력되는 광 신호를 집속하여 상기 제2 이심 페룰의 하나의 광섬유로 출력시키고, 상기 제2 이심 페룰의 나머지 광섬유로부터 입력되는 광 신호를 평행광으로 변환하여 상기 파장 분리 필터의 제2 면으로 출력시키는 제2 렌즈;를 포함하고, 상기 제1 렌즈, 파장 분리 필터 및 제2 렌즈는 상기 동축 상에 배열되어 있는 광 신호 추가 및 추출 장치.
- 광축으로부터 동일 거리에 서로 대칭되게 위치되어 있으며, 적어도 하나 이상의 광 신호를 전송하는 제1 및 제2 광섬유를 포함하는 제1 이심 페룰; 광축으로부터 동일 거리에 서로 대칭되게 위치되어 있으며, 적어도 하나 이상의 광 신호를 전송하는 제3 및 제4 광섬유를 포함하는 제2 이심 페룰; 특정 파장의 광 신호만을 선택적으로 투과시키는 파장 분리 필터; 상기 제1 이심 페룰의 하나의 광섬유로부터 입력되는 광 신호를 평행광으로 변환하여 상기 파장 분리 필터의 제1 면으로 출력시키고, 상기 파장 분리 필터로부터 입력되는 광 신호를 집속하여 상기 제1 이심 페룰의 나머지 광섬유로 출력시키는 제1 렌즈; 및 상기 파장 분리 필터로부터 입력되는 광 신호를 집속하여 상기 제2 이심 페룰의 하나의 광섬유로 출력시키고, 상기 제2 이심 페룰의 나머지 광섬유로부터 입력되는 광 신호를 평행광으로 변환하여 상기 파장 분리 필터의 제2 면으로 출력시키는 제2 렌즈를 포함하는 광학 단위 소자를 다수개 포함하는 광 신호 합파 및 분리부;상기 광학 단위 소자에 각각 대응되어 연결되어 있으며, 상기 광학 소자로부터 출력되는 광 신호를 추출하거나, 상기 광학 소자로부터 추출된 광 신호와 동일한 광 신호를 상기 광학 단위 소자로 추가하는 스위치를 다수개 포함하는 스위치 모듈을 포함하는 신호 추가 및 추출 장치.
- 제2항에 있어서,상기 스위치는 상기 광학 단위 소자의 제2 페룰의 제3 및 제4 광섬유에 연결되어, 상기 단위 소자로부터 출력되는 광 신호를 추출하거나, 추출된 광 신호와 동일한 광 신호를 추가하는 2×2 스위치로 이루어지는 것을 특징으로 하는 광 신호 추가 및 추출 장치.
- 제1항 또는 제2항에 있어서,상기 제1 렌즈는 상기 제1 광섬유를 통하여 입력되는 광 신호를 평행광으로 변환하여 상기 파장 분리 필터로 출력하고, 상기 파장 분리 필터에 의하여 반사되거나 상기 파장 분리 필터를 통과한 광 신호를 집속시켜 상기 제2 광섬유로 출력하고,상기 제2 렌즈는 상기 제3 광섬유를 통하여 입력되는 광 신호를 평행광으로 변환하여 상기 파장 분리 필터로 출력하고, 상기 파장 분리 필터로부터 입력되는 광 신호를 집속시켜 상기 제4 광섬유로 출력하는 광 신호 추가 및 추출 장치.
- 제1항 또는 제2항에 있어서,상기 제3 광섬유는 새로운 광신호가 추가되는 추가 채널이고, 상기 제4 광섬유는 광 신호가 추출되는 추출 채널인 광 신호 추가 및 추출 장치.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020000023087A KR100323058B1 (ko) | 2000-04-29 | 2000-04-29 | 광 신호 추가 및 추출 장치 |
US09/842,096 US6556743B2 (en) | 2000-04-29 | 2001-04-26 | Optical signal add and drop apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020000023087A KR100323058B1 (ko) | 2000-04-29 | 2000-04-29 | 광 신호 추가 및 추출 장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20010098257A KR20010098257A (ko) | 2001-11-08 |
KR100323058B1 true KR100323058B1 (ko) | 2002-02-09 |
Family
ID=19667699
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020000023087A Expired - Fee Related KR100323058B1 (ko) | 2000-04-29 | 2000-04-29 | 광 신호 추가 및 추출 장치 |
Country Status (2)
Country | Link |
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US (1) | US6556743B2 (ko) |
KR (1) | KR100323058B1 (ko) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2002249965A1 (en) * | 2001-01-22 | 2002-07-30 | Essex Corporation | Optical cdma communications system using otdl device |
US7062174B2 (en) * | 2001-01-22 | 2006-06-13 | Essex Corporation | Wavelength division multiplexing add-drop multiplexer using an optical tapped delay line |
US7164817B2 (en) * | 2002-05-24 | 2007-01-16 | Hoya Corporation | Optical switch and optical add/drop multiplexer using the same |
WO2003100498A1 (fr) * | 2002-05-24 | 2003-12-04 | Hoya Corporation | Commutateur optique et unite optique de derivation/insertion l'utilisant |
JP4313987B2 (ja) * | 2002-06-18 | 2009-08-12 | 富士通株式会社 | ファイバブロックの製造方法 |
US6804432B2 (en) * | 2002-10-16 | 2004-10-12 | Hon Hai Precision Ind. Co., Ltd. | Optical add-drop multiplexer |
CN109684252B (zh) * | 2017-10-18 | 2022-08-09 | 深圳市中兴微电子技术有限公司 | 一种终端芯片 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100237379B1 (ko) * | 1997-08-30 | 2000-01-15 | 이계철 | 파장분할다중 통신용 파장가변 광 드롭/패스 필터 시스템 구조 |
KR20000020913A (ko) * | 1998-09-24 | 2000-04-15 | 윤종용 | 양방향 광파장 분할기를 이용한 추가/삭제 다중화기 |
KR100264950B1 (ko) * | 1998-06-19 | 2000-09-01 | 이계철 | 궤환잡음이 없는 파장다중방식(wdm) 통신용 파장가변광 추출/투과필터 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5566014A (en) | 1994-12-28 | 1996-10-15 | At&T Corp. | Tunable add/drop optical filter providing arbitrary channel arrangements |
US5629995A (en) | 1996-02-01 | 1997-05-13 | Jds Fitel Inc. | Wavelength filter arrangements for use in fiber optics |
US5930016A (en) | 1996-10-10 | 1999-07-27 | Tellabs Operations, Inc. | Upgradable modular wavelength division multiplexer |
US6396980B1 (en) * | 1999-02-22 | 2002-05-28 | Alliance Fiber Optics Products, Inc. | Multi-port fiber optic device with V-groove dual fiber collimator for WDM application |
US6154585A (en) | 1999-06-17 | 2000-11-28 | Jds Fitel Inc. | 11/2×2 optical switch |
US6249625B1 (en) * | 1999-06-28 | 2001-06-19 | E-Tek Dynamics, Inc. | Fiberoptic devices with a joined optical fiber subassembly |
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2000
- 2000-04-29 KR KR1020000023087A patent/KR100323058B1/ko not_active Expired - Fee Related
-
2001
- 2001-04-26 US US09/842,096 patent/US6556743B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100237379B1 (ko) * | 1997-08-30 | 2000-01-15 | 이계철 | 파장분할다중 통신용 파장가변 광 드롭/패스 필터 시스템 구조 |
KR100264950B1 (ko) * | 1998-06-19 | 2000-09-01 | 이계철 | 궤환잡음이 없는 파장다중방식(wdm) 통신용 파장가변광 추출/투과필터 |
KR20000020913A (ko) * | 1998-09-24 | 2000-04-15 | 윤종용 | 양방향 광파장 분할기를 이용한 추가/삭제 다중화기 |
Also Published As
Publication number | Publication date |
---|---|
US20010038734A1 (en) | 2001-11-08 |
KR20010098257A (ko) | 2001-11-08 |
US6556743B2 (en) | 2003-04-29 |
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