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- Alic, N., et al.
(författare)
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Benefits of Joint Statistics in MLSD-Equalized Transmission
- 2009
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Ingår i: IEEE Photonics Technology Letters. - 1041-1135 .- 1941-0174. ; 21:8, s. 495-497
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Tidskriftsartikel (refereegranskat)abstract
- We experimentally investigate and quantify performance improvement, accounting for multiple bit intervals' joint statistics in filtered equalized on-off keying OC-192 fiber-optic links relying on Viterbi-algorithm-based sequence detection. We demonstrate that the penalty associated with narrow filtering can be alleviated for the most part with an appropriate detection approach.
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- Alic, N., et al.
(författare)
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Joint Statistics and MLSD in Filtered Incoherent High-Speed Fiber-Optic Communications
- 2010
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Ingår i: Journal of Lightwave Technology. - 0733-8724 .- 1558-2213. ; 28:10, s. 1564-1572
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Tidskriftsartikel (refereegranskat)abstract
- In this paper, signal statistics and their utilization for detection in narrowly filtered equalized high-speed fiber-optic communications are investigated experimentally. Tradeoffs between log-likelihood metric applications and oversampling are covered in detail. It is, for the first time, demonstrated that performance loss in bandwidth-limited systems can be nearly fully recovered (to within 0.5 dB) by taking advantage of band-width-limitation-induced noise correlations and oversampling.
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- Sjödin, Martin E, 1983, et al.
(författare)
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Cancellation of SPM in Self-Homodyne Coherent Systems
- 2009
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Ingår i: Proceedings of European Conference on Optical Communication, ECOC 2009, Vienna, Austria, September 20-24, 2009, paper We8.4.5.
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Konferensbidrag (refereegranskat)abstract
- The signal and local oscillator acquire identical nonlinear phase shifts during propagation in a selfhomodynecoherent system. We exploit this to achieve cancellation of the phase distortion caused by self-phasemodulation.
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6. |
- Sköld, Mats, 1977, et al.
(författare)
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Constellation diagram measurements of induced phase noise in a regenerating parametric amplifier
- 2008
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Ingår i: OFC/NFOEC 2008 - 2008 Conference on Optical Fiber Communication/National Fiber Optic Engineers Conference; San Diego, CA; United States; 24 February 2008 through 28 February 2008. - 9781557528551 ; , s. OML4-
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Konferensbidrag (refereegranskat)abstract
- We perform coherent constellation diagram measurements of phase modulated data before and after a saturated parametric amplifier, and find a novel kind of pump-induced phase noise in the amplifier.
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- Sköld, Mats, 1977, et al.
(författare)
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Polarization-based Monitoring in WDM Systems
- 2007
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Ingår i: Proceedings of Optoelectronics and Communications Conference. - 9784885522215 ; , s. 346-347
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)
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