GB0224889D0 - A tunable filter - Google Patents

A tunable filter

Info

Publication number: GB0224889D0
Authority: GB; United Kingdom
Prior art keywords: tunable filter; tunable; filter
Prior art date: 2000-03-28
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn

Application number

GBGB0224889.6A

Other versions

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Ditech Networks Inc

Original Assignee

Ditech Networks Inc

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

2000-03-28

Filing date

2001-03-28

Publication date

2002-12-04

2000-03-28 Priority claimed from GBGB0007549.9A external-priority patent/GB0007549D0/en

2000-03-28 Priority claimed from GB0007554A external-priority patent/GB0007554D0/en

2000-08-11 Priority claimed from GB0019868A external-priority patent/GB0019868D0/en

2001-03-28 Application filed by Ditech Networks Inc filed Critical Ditech Networks Inc

2002-12-04 Publication of GB0224889D0 publication Critical patent/GB0224889D0/en

2003-01-08 Publication of GB2377331A publication Critical patent/GB2377331A/en

Status Withdrawn legal-status Critical Current

Classifications

- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2/00—Demodulating light; Transferring the modulation of modulated light; Frequency-changing of light
- G02F2/004—Transferring the modulation of modulated light, i.e. transferring the information from one optical carrier of a first wavelength to a second optical carrier of a second wavelength, e.g. all-optical wavelength converter
- 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
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2/00—Demodulating light; Transferring the modulation of modulated light; Frequency-changing of light
- G02F2/004—Transferring the modulation of modulated light, i.e. transferring the information from one optical carrier of a first wavelength to a second optical carrier of a second wavelength, e.g. all-optical wavelength converter
- G02F2/006—All-optical wavelength conversion
- 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
- H04Q2011/0011—Construction using wavelength conversion
- 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
- H04Q2011/0013—Construction using gating amplifiers
- 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
- H04Q2011/0016—Construction using wavelength multiplexing or demultiplexing
- 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
- H04Q2011/0018—Construction using tunable transmitters or receivers
- 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
- H04Q11/0062—Network aspects
- H04Q2011/0073—Provisions for forwarding or routing, e.g. lookup tables
- 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
- H04Q11/0062—Network aspects
- H04Q2011/0086—Network resource allocation, dimensioning or optimisation

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
General Physics & Mathematics (AREA)
Nonlinear Science (AREA)
Optics & Photonics (AREA)
Optical Communication System (AREA)

GB0224889A 2000-03-28 2001-03-28 A tunable filter Withdrawn GB2377331A (en)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
GBGB0007549.9A GB0007549D0 (en)	2000-03-28	2000-03-28	A wavelength converter
GB0007554A GB0007554D0 (en)	2000-03-28	2000-03-28	A tunable filter
GB0019868A GB0019868D0 (en)	2000-08-11	2000-08-11	A tunable filter/wavelength converter
PCT/GB2001/001372 WO2001074112A1 (en)	2000-03-28	2001-03-28	A tunable filter

Publications (2)

Publication Number	Publication Date
GB0224889D0 true GB0224889D0 (en)	2002-12-04
GB2377331A GB2377331A (en)	2003-01-08

Family

ID=27255627

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB0224889A Withdrawn GB2377331A (en)	2000-03-28	2001-03-28	A tunable filter

Country Status (3)

Country	Link
AU (1)	AU4260901A (en)
GB (1)	GB2377331A (en)
WO (1)	WO2001074112A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
KR100361034B1 (en) *	2000-12-19	2002-11-21	한국과학기술연구원	All-Optical Logic AND in a SOA-Based Mach-Zehnder Inteferometer
KR100446534B1 (en) *	2002-11-22	2004-09-01	삼성전자주식회사	Wavelength converter and wavelength interchanging cross-connector using the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH11275614A (en) *	1998-03-26	1999-10-08	Nec Corp	Photo switching device

2001
- 2001-03-28 GB GB0224889A patent/GB2377331A/en not_active Withdrawn
- 2001-03-28 WO PCT/GB2001/001372 patent/WO2001074112A1/en active Application Filing
- 2001-03-28 AU AU42609/01A patent/AU4260901A/en not_active Abandoned

Also Published As

Publication number	Publication date
AU4260901A (en)	2001-10-08
GB2377331A (en)	2003-01-08
WO2001074112A1 (en)	2001-10-04

Publication	Publication Date	Title
GB2365994B (en)	2002-10-30	Tunable optical filter
EP1300908A4 (en)	2004-03-17	Filter
GB0126219D0 (en)	2002-01-02	Tunable filter
DE50105628D1 (en)	2005-04-21	Filter
EP1262204A4 (en)	2007-06-20	Novel leukapheretic filter
AU146121S (en)	2001-11-30	A filter for tea
AU2001275750A1 (en)	2002-02-18	A filter
HK1050092A1 (en)	2003-06-06	A tuneable optical filter
GB0224889D0 (en)	2002-12-04	A tunable filter
GB0125996D0 (en)	2001-12-19	Tunable filter
GB2365144B (en)	2004-06-16	Filter
GB0007554D0 (en)	2000-05-17	A tunable filter
AUPQ867600A0 (en)	2000-08-03	A filter assembly
GB0015635D0 (en)	2000-08-16	A filter
AU149022S (en)	2002-08-26	A filter
GB0004791D0 (en)	2000-04-19	Tuneable notch filter
AU143745S (en)	2001-05-08	A filter half
GB0008575D0 (en)	2000-05-31	A filter assembly
AU145558S (en)	2001-10-10	A filter assembly
GB0019868D0 (en)	2000-09-27	A tunable filter/wavelength converter
AU144685S (en)	2001-08-07	A filter cartridge
GB0106054D0 (en)	2001-05-02	A filter
GB0120225D0 (en)	2001-10-10	A filter
GB0106797D0 (en)	2001-05-09	A filter
GB0111180D0 (en)	2001-06-27	A filter

Legal Events

Date	Code	Title	Description
2004-12-22	WAP	Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)