Clock Recovery Challenges in DSP-Based Coherent Single-Mode and Multi-Mode Optical Systems
We present an analysis of clock recovery algorithms in both polarization division multiplexing systems and mode division multiplexing systems. The impact of inter-polarization time skew and polarization mode dispersion in single-mode fibers, as well as the combined impact of mode mixing and mode gro...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-06-01
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| Series: | Future Internet |
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| Online Access: | http://www.mdpi.com/1999-5903/10/7/59 |
| _version_ | 1819073877879291904 |
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| author | Júlio César Medeiros Diniz Francesco Da Ros Darko Zibar |
| author_facet | Júlio César Medeiros Diniz Francesco Da Ros Darko Zibar |
| author_sort | Júlio César Medeiros Diniz |
| collection | DOAJ |
| description | We present an analysis of clock recovery algorithms in both polarization division multiplexing systems and mode division multiplexing systems. The impact of inter-polarization time skew and polarization mode dispersion in single-mode fibers, as well as the combined impact of mode mixing and mode group delay spread in multi-mode fibers under different coupling regimes are investigated. Results show that although the clock tone vanishing has a known solution for single-mode systems, in multi-mode systems even for low group delay spread, strong coupling will cause clock tone extinction, making it harder to implement an effective clock recovery scheme. |
| first_indexed | 2024-12-21T18:00:36Z |
| format | Article |
| id | doaj.art-c651b654e98e4a0ba249c96e955a086b |
| institution | Directory Open Access Journal |
| issn | 1999-5903 |
| language | English |
| last_indexed | 2024-12-21T18:00:36Z |
| publishDate | 2018-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Future Internet |
| spelling | doaj.art-c651b654e98e4a0ba249c96e955a086b2022-12-21T18:55:05ZengMDPI AGFuture Internet1999-59032018-06-011075910.3390/fi10070059fi10070059Clock Recovery Challenges in DSP-Based Coherent Single-Mode and Multi-Mode Optical SystemsJúlio César Medeiros Diniz0Francesco Da Ros1Darko Zibar2DTU Fotonik, Technical University of Denmark, Ørsteds Plads 343, 2800 Kongens Lyngby, DenmarkDTU Fotonik, Technical University of Denmark, Ørsteds Plads 343, 2800 Kongens Lyngby, DenmarkDTU Fotonik, Technical University of Denmark, Ørsteds Plads 343, 2800 Kongens Lyngby, DenmarkWe present an analysis of clock recovery algorithms in both polarization division multiplexing systems and mode division multiplexing systems. The impact of inter-polarization time skew and polarization mode dispersion in single-mode fibers, as well as the combined impact of mode mixing and mode group delay spread in multi-mode fibers under different coupling regimes are investigated. Results show that although the clock tone vanishing has a known solution for single-mode systems, in multi-mode systems even for low group delay spread, strong coupling will cause clock tone extinction, making it harder to implement an effective clock recovery scheme.http://www.mdpi.com/1999-5903/10/7/59optical communicationsclock recoveryspace-division multiplexingcoherent communications |
| spellingShingle | Júlio César Medeiros Diniz Francesco Da Ros Darko Zibar Clock Recovery Challenges in DSP-Based Coherent Single-Mode and Multi-Mode Optical Systems Future Internet optical communications clock recovery space-division multiplexing coherent communications |
| title | Clock Recovery Challenges in DSP-Based Coherent Single-Mode and Multi-Mode Optical Systems |
| title_full | Clock Recovery Challenges in DSP-Based Coherent Single-Mode and Multi-Mode Optical Systems |
| title_fullStr | Clock Recovery Challenges in DSP-Based Coherent Single-Mode and Multi-Mode Optical Systems |
| title_full_unstemmed | Clock Recovery Challenges in DSP-Based Coherent Single-Mode and Multi-Mode Optical Systems |
| title_short | Clock Recovery Challenges in DSP-Based Coherent Single-Mode and Multi-Mode Optical Systems |
| title_sort | clock recovery challenges in dsp based coherent single mode and multi mode optical systems |
| topic | optical communications clock recovery space-division multiplexing coherent communications |
| url | http://www.mdpi.com/1999-5903/10/7/59 |
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