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DE10344314A1 - An optical multi-channel demultiplexer based on a single optical switch - Google Patents

An optical multi-channel demultiplexer based on a single optical switch

Info

Publication number
DE10344314A1
DE10344314A1 DE2003144314 DE10344314A DE10344314A1 DE 10344314 A1 DE10344314 A1 DE 10344314A1 DE 2003144314 DE2003144314 DE 2003144314 DE 10344314 A DE10344314 A DE 10344314A DE 10344314 A1 DE10344314 A1 DE 10344314A1
Authority
DE
Germany
Prior art keywords
data
optical switch
eam
os
simultaneously
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Withdrawn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
DE2003144314
Other languages
German (de)
Inventor
Cristof Boerner
Joern Berger
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.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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 Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Priority to DE2003144314 priority Critical patent/DE10344314A1/en
Publication of DE10344314A1 publication Critical patent/DE10344314A1/en
Application status is Withdrawn legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J14/00Optical multiplex systems
    • H04J14/08Time-division multiplex systems

Abstract

Ein bekannter Multi-Kanal-Demultiplexer für eine Datenrate von 40 Gbit/s auf der Basis eines elektroabsorbierenden Modulators nutzt dessen Bidirektionalität, um gleichzeitig zwei Datenkanäle demultiplexen zu können. s on the basis of an electroabsorption modulator uses its bidirectionality, a known multi-channel demultiplexer for a data rate of 40 Gbit / in to demultiplex two data channels simultaneously. Auftretende Reflexionssignale können jedoch zu Beeinflussungen führen. However occurring reflection signals can cause interference. Der erfindungsgemäße Multi-Kanal-Demultiplexer (MKD) nutzt den unidirektionalen Weg durch den optischen Schalter (OS, EAM) und unterscheidet zwei zu entschachtelnde Datenkanäle (A/B; C/D) durch ihren Polarisationszustand. The inventive multi-channel demultiplexer (MKD) uses the unidirectional path through the optical switch (OS, EAM) and two different data channels to be deinterleaved (A / B C / D) by their polarization state. Dazu wird ein doppelbrechendes Element (DBE) verwendet, das zwei orthogonal polarisierte Datensignale erzeugt. For this purpose a birefringent element (DBE) is used that produces two orthogonally polarized data signals. Diese werden im doppelbrechenden Element (DBE, HiBi-F) bezüglich der zu entschachtelnden Datenkanäle (A/B; C/D) zeitlich übereinandergeschoben und anschließend auf das Schaltfenster des optischen Schalters (OS, EAM) synchronisiert. These are in the birefringent element (DBE, HiBi F) with respect to the deinterleaved data to channels (A / B C / D) in time over each other and then the switching window of the optical switch (OS, EAM) synchronized. Vier Datenkanäle (A, B, C, D) können gleichzeitig gedemultiplext werden, wenn beide Durchlaufrichtungen durch den optischen Schalter (OS, EAM) und die Polarisation gleichzeitig genutzt werden, wobei alle vier Datenkanäle (A, B, C, D) zeitlich übereinandergeschoben und auf das Schaltfenster synchronisiert werden. Four data channels (A, B, C, D) can be simultaneously demultiplexed when both pass directions are used by the optical switch (OS, EAM) and the polarization simultaneously, where all four data channels (A, B, C, D) pushed over one another in time and are synchronized to the switching window. Durch die Nutzung von vier eindeutig unterscheidbaren Datensignalen im optischen Schalter (OS, EAM) kann auch gleichzeitig eine Datentaktrückgewinnung bespielsweise nach dem differentiellen Prinzip erfolgen. By using four clearly distinct data signals in the optical switch (OS, EAM) a data clock recovery can take place recordable, according to the differential principle simultaneously. Durch eine Kaskadierung können entsprechnd viele Datenkanäle auch bei vorgegebener höchster Datentaktrate gleichzeitig ... By cascading many data channels can entsprechnd same even with a predetermined highest data clock rate ...
DE2003144314 2003-09-21 2003-09-21 An optical multi-channel demultiplexer based on a single optical switch Withdrawn DE10344314A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2003144314 DE10344314A1 (en) 2003-09-21 2003-09-21 An optical multi-channel demultiplexer based on a single optical switch

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003144314 DE10344314A1 (en) 2003-09-21 2003-09-21 An optical multi-channel demultiplexer based on a single optical switch
PCT/DE2004/002096 WO2005032023A1 (en) 2003-09-21 2004-09-18 Optical multi-channel demultiplexer comprising an individual optical circuit

Publications (1)

Publication Number Publication Date
DE10344314A1 true DE10344314A1 (en) 2005-04-28

Family

ID=34384252

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2003144314 Withdrawn DE10344314A1 (en) 2003-09-21 2003-09-21 An optical multi-channel demultiplexer based on a single optical switch

Country Status (2)

Country Link
DE (1) DE10344314A1 (en)
WO (1) WO2005032023A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999005812A1 (en) * 1997-07-28 1999-02-04 British Telecommunications Public Limited Company Optical data processing using electroabsorbtion modulators
WO1999043119A1 (en) * 1998-02-20 1999-08-26 The Government Of The United States Of America As Represented By The Secretary Of The Navy Sagnac interferometer amplitude modulator based demultiplexer
US20020093993A1 (en) * 2000-06-15 2002-07-18 Lagasse Michael J. Apparatus and method for demultiplexing a polarization-multiplexed signal
US20030108263A1 (en) * 2001-12-11 2003-06-12 Hemonth Rao Polarization multiplexed optical data modulator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999005812A1 (en) * 1997-07-28 1999-02-04 British Telecommunications Public Limited Company Optical data processing using electroabsorbtion modulators
WO1999043119A1 (en) * 1998-02-20 1999-08-26 The Government Of The United States Of America As Represented By The Secretary Of The Navy Sagnac interferometer amplitude modulator based demultiplexer
US20020093993A1 (en) * 2000-06-15 2002-07-18 Lagasse Michael J. Apparatus and method for demultiplexing a polarization-multiplexed signal
US20030108263A1 (en) * 2001-12-11 2003-06-12 Hemonth Rao Polarization multiplexed optical data modulator

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
BOERNER, C. (u.a.): 160 Gbit/s Clock Recovery with Electro-Optical PLL using a bidirectionally operated Electroabsorption Modulator as Phase Comparator. In: Proc. OFC 2003, Paper FF3 *
YAMAMOTO, T.(u.a.): Clock recovery from 160 Gbit/sdata signals using phase-locked loop with inter- ferometric optical switch based on semiconductor optical amplifier. In: Electronic Letters. 2001, Vol. 37, No. 8, S. 509-510 *

Also Published As

Publication number Publication date
WO2005032023A1 (en) 2005-04-07

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