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Impact of local osc...
Impact of local oscillator frequency noise on coherent optical systems with electronic dispersion compensation
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- Kakkar, Aditya (author)
- RISE,KTH,Optik och Fotonik, OFO,Acreo,KTH Royal Institute of Technology, Sweden
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- Schatz, Richard (author)
- KTH,Optik och Fotonik, OFO,KTH Royal Institute of Technology, Sweden
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- Pang, Xiaodan (author)
- RISE,Acreo
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- Navarro, Jaime Rodrigo (author)
- RISE,Acreo
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- Louchet, Hadrien (author)
- VPIphotonics GmbH, Germany
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- Ozolins, Oskars (author)
- RISE,Acreo
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- Jacobsen, Gunnar (author)
- RISE,Acreo
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- Popov, Sergei (author)
- KTH,Optik och Fotonik, OFO,KTH Royal Institute of Technology, Sweden
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(creator_code:org_t)
- 2015
- 2015
- English.
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In: Optics Express. - 1094-4087. ; 23:9, s. 11221-11226
- Related links:
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https://www.osapubli...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Subject headings
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- A theoretical investigation of the equalization-enhanced phase noise (EEPN) and its mitigation is presented. We show with a frequency domain analysis that the EEPN results from the non-linear inter-mixing between the sidebands of the dispersed signal and the noise sidebands of the local oscillator. It is further shown and validated with system simulations that the transmission penalty is mainly due to the slow optical frequency fluctuations of the local oscillator. Hence, elimination of the frequency noise below a certain cut-off frequency significantly reduces the transmission penalty, even when frequency noise would otherwise cause an error floor. The required cut-off frequency increases linearly with the white frequency noise level and hence the linewidth of the local oscillator laser, but is virtually independent of the symbol rate and the accumulated dispersion.
Subject headings
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- NATURVETENSKAP -- Data- och informationsvetenskap (hsv//swe)
- NATURAL SCIENCES -- Computer and Information Sciences (hsv//eng)
Keyword
- Enhanced Phase Noise
- RF Pilot
- Equalization
- Transmission
- EEPN
Publication and Content Type
- ref (subject category)
- art (subject category)
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