GB2507445A - An optical switch and a method of switching an optical signal - Google Patents

An optical switch and a method of switching an optical signal Download PDF

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Publication number
GB2507445A
GB2507445A GB1402753.6A GB201402753A GB2507445A GB 2507445 A GB2507445 A GB 2507445A GB 201402753 A GB201402753 A GB 201402753A GB 2507445 A GB2507445 A GB 2507445A
Authority
GB
United Kingdom
Prior art keywords
signal
optical
output
traffic
pump
Prior art date
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Withdrawn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
GB1402753.6A
Other versions
GB201402753D0 (en
Inventor
Claudio Porzi
Giampiero Contestabile
Antonella Bogoni
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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.)
Filing date
Publication date
Application filed by Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of GB201402753D0 publication Critical patent/GB201402753D0/en
Publication of GB2507445A publication Critical patent/GB2507445A/en
Withdrawn legal-status Critical Current

Links

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
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/35—Non-linear optics
    • G02F1/3515—All-optical modulation, gating, switching, e.g. control of a light beam by another light beam
    • G02F1/3517—All-optical modulation, gating, switching, e.g. control of a light beam by another light beam using an interferometer
    • 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
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/35—Non-linear optics
    • 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
    • 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
    • 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
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/21—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  by interference
    • G02F1/212—Mach-Zehnder type
    • 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
    • G02F2203/00—Function characteristic
    • G02F2203/58—Multi-wavelength, e.g. operation of the device at a plurality of wavelengths
    • G02F2203/585—Add/drop devices
    • 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
    • G02F2203/00—Function characteristic
    • G02F2203/70—Semiconductor optical amplifier [SOA] used in a device covered by G02F

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Communication System (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)

Abstract

An optical switch (10) comprising: a first signal input (12) to receive an OOK modulated optical traffic probe signal having a first wavelength and carrying communications traffic and an optical gate probe signal having a second wavelength; a first output (16); a second output (18); a first pump input (30) coupled to the first arm to deliver an optical gate pump signal having the second wavelength and an optical traffic pump signal into the first arm in the second direction of propagation; an optical interferometer (20) having a first state in which the traffic probe and traffic pump signals are synchronously present within the nonlinear medium, to produce a first phase difference between the first and second arms whereby the traffic probe signal is output at one of a first signal output and a second signal output and having a second state in which the traffic probe and pump signals, and gate probe and pump signals are synchronously present within the nonlinear medium, such that a second phase difference is produced between the first and second arms whereby an OOK modulated output optical signal at the second wavelength, carrying the communications traffic, is output at said output; anda controller (34) arranged to selectively cause the optical gate pump signal to be delivered to the first pump input, to selectively set the interferometer to its second state.
GB1402753.6A 2011-07-22 2011-07-22 An optical switch and a method of switching an optical signal Withdrawn GB2507445A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2011/062613 WO2013013695A1 (en) 2011-07-22 2011-07-22 An optical switch and a method of switching an optical signal

Publications (2)

Publication Number Publication Date
GB201402753D0 GB201402753D0 (en) 2014-04-02
GB2507445A true GB2507445A (en) 2014-04-30

Family

ID=44509272

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1402753.6A Withdrawn GB2507445A (en) 2011-07-22 2011-07-22 An optical switch and a method of switching an optical signal

Country Status (2)

Country Link
GB (1) GB2507445A (en)
WO (1) WO2013013695A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10627697B2 (en) 2018-09-25 2020-04-21 United States Of America As Represented By The Secretary Of The Air Force Optical switch

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020018612A1 (en) * 2000-05-23 2002-02-14 Alcatel Optical NRZ-RZ format converter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020018612A1 (en) * 2000-05-23 2002-02-14 Alcatel Optical NRZ-RZ format converter

Also Published As

Publication number Publication date
WO2013013695A1 (en) 2013-01-31
GB201402753D0 (en) 2014-04-02

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)