DE10344314A1 - Optical multi-channel demultiplexer based on a single optical switch - Google Patents
Optical multi-channel demultiplexer based on a single optical switch Download PDFInfo
- 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 channels
- optical switch
- eam
- data
- channel demultiplexer
- 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- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/08—Time-division multiplex systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
- Optical Communication System (AREA)
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. Auftretende Reflexionssignale können jedoch zu Beeinflussungen führen. 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. Dazu wird ein doppelbrechendes Element (DBE) verwendet, das zwei orthogonal polarisierte Datensignale erzeugt. 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. 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. Durch die Nutzung von vier eindeutig unterscheidbaren Datensignalen im optischen Schalter (OS, EAM) kann auch gleichzeitig eine Datentaktrückgewinnung bespielsweise nach dem differentiellen Prinzip erfolgen. Durch eine Kaskadierung können entsprechnd viele Datenkanäle auch bei vorgegebener höchster Datentaktrate gleichzeitig ...A well-known 40 Gb / s electro-absorbing modulator multi-channel demultiplexer uses its bidirectionality to demultiplex two data channels simultaneously. Occurring reflection signals, however, can lead to influences. The multi-channel demultiplexer (MKD) according to the invention uses the unidirectional path through the optical switch (OS, EAM) and distinguishes two data channels to be deinterleaved (A / B, C / D) by their polarization state. For this purpose, a birefringent element (DBE) is used which generates two orthogonally polarized data signals. These are temporally superimposed in the birefringent element (DBE, HiBi-F) with respect to the data channels to be deinterleaved (A / B; C / D) and then synchronized to the switching window of the optical switch (OS, EAM). Four data channels (A, B, C, D) can be demultiplexed simultaneously if both pass directions are used simultaneously by the optical switch (OS, EAM) and the polarization, with all four data channels (A, B, C, D) shifted in time and synchronized to the switching window. By using four uniquely distinguishable data signals in the optical switch (OS, EAM), it is also possible at the same time for a data clock recovery to be carried out according to the differential principle. Due to a cascading, many data channels can be processed simultaneously even with a given maximum data clock rate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2003144314 DE10344314A1 (en) | 2003-09-21 | 2003-09-21 | 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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2003144314 DE10344314A1 (en) | 2003-09-21 | 2003-09-21 | Optical multi-channel demultiplexer based on a single optical switch |
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 | Optical multi-channel demultiplexer based on a single optical switch |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE10344314A1 (en) |
| WO (1) | WO2005032023A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111707364B (en) * | 2020-06-08 | 2024-01-05 | 陕西时元新拓光电科技有限公司 | Device and system for time-domain modulation time-dependent single photon counting |
Citations (4)
| 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 |
-
2003
- 2003-09-21 DE DE2003144314 patent/DE10344314A1/en not_active Withdrawn
-
2004
- 2004-09-18 WO PCT/DE2004/002096 patent/WO2005032023A1/en active Application Filing
Patent Citations (4)
| 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)
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE602005000213T2 (en) | Method and device for optical transmission | |
| DE69935054T2 (en) | Transmission system for a time division multiplexed optical signal | |
| DE60025975T2 (en) | An optical transmitter and method for controlling the optical transmitter using the variable duty cycle setting and the alternating phase inversion for optical clock signals | |
| EP1307072A3 (en) | Method for operating a hearing aid and hearing aid | |
| CA2285283A1 (en) | N x m optical wavelength routing switch | |
| EP1797654B1 (en) | Method and arrangement for the optical transmission of data signals by means of differential phase modulation in a polarisation multiplex method | |
| DE602005001383T2 (en) | Optical timing recovery method and associated apparatus | |
| CN107359983B (en) | The signal encryption transmission and restoration methods covered based on without item chaotic signal | |
| DE60114069D1 (en) | System and method for the protection of digital works | |
| DE10344314A1 (en) | Optical multi-channel demultiplexer based on a single optical switch | |
| DE50000752D1 (en) | METHOD FOR MONITORING THE TRANSMISSION QUALITY OF AN OPTICAL TRANSMISSION SYSTEM, IN PARTICULAR AN OPTICAL WAVELENGTH MULTIPLEX NETWORK | |
| DE60107088T2 (en) | A CS-RZ optical clock generator and a resynchronized optical multiplexer containing such a generator | |
| WO2003052988A3 (en) | Apparatus and method for demultiplexing a polarization-multiplexed signal | |
| US5917627A (en) | Optical TDM transmission system | |
| EP1226669B1 (en) | Method and device for optimizing an optical transfer signal modulated with a binary data signal | |
| DE102006036817A1 (en) | Optical regenerator and phase error detection unit for an optical regenerator and method for optical regeneration | |
| KR880010591A (en) | Time Division Multiple Signal Device | |
| DE60312051T2 (en) | PURE OPTICAL TRANSFORMER | |
| DE60217261T2 (en) | Equalization of optical signals | |
| TW260851B (en) | Recovering analog and digital signals from superimposed analog and digital signals using linear prediction | |
| DE602004002825T2 (en) | Duobinary optical transmitter | |
| US8369711B2 (en) | Ethernet transmitter apparatus | |
| DE602004002160T2 (en) | Process for the formation of a coded RZ or NRZ signal | |
| EP0094624A3 (en) | Apparatus for generating quaternary signals | |
| US6388781B1 (en) | Apparatus for time division/wave division conversion |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| 8139 | Disposal/non-payment of the annual fee |