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Mitigation of EEPN in Coherent Optical Systems with Low Speed Digital Coherence Enhancement
RISE., Swedish ICT, Acreo.ORCID-id: 0000-0001-8389-158x
RISE., Swedish ICT, Acreo.ORCID-id: 0000-0001-5730-9656
KTH Royal Institute of Technology, Sweden.
RISE., Swedish ICT, Acreo.
Vise andre og tillknytning
2015 (engelsk)Inngår i: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 27, nr 18, s. 1942-1945, artikkel-id 7128718Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

A method for mitigating local oscillator (LO) phase noise-induced impairment, also known as equalization-enhanced phase noise, in coherent optical systems is discussed. The method is suitable for real-time implementation and requires hardware with a bandwidth much lower than the signal baud rate, even for a system utilizing conventional semiconductor laser as LO. We evaluate the required parameters like interpolation technique, electrical signal-to-noise ratio at digital coherence enhancement (DCE) front end, for long haul transmission links having quadrature phase shift keying and 16-quadrature amplitude modulation formats. We show that the method can be implemented using a low-speed DCE front end and a simple digital linear interpolator with small (<1 dB) implementation penalty even in cases that would otherwise result inerror floor.

sted, utgiver, år, opplag, sider
2015. Vol. 27, nr 18, s. 1942-1945, artikkel-id 7128718
Emneord [en]
coherent receiver, sequalization-enhanced phase noise, quadrature amplitude modulation (QAM)
HSV kategori
Identifikatorer
URN: urn:nbn:se:ri:diva-31901DOI: 10.1109/LPT.2015.2447839OAI: oai:DiVA.org:ri-31901DiVA, id: diva2:1151759
Tilgjengelig fra: 2017-10-24 Laget: 2017-10-24 Sist oppdatert: 2019-07-05bibliografisk kontrollert

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