PMD tolerant direct-detection optical OFDM system

Mayrock, Markus; Haunstein, H.

doi:10.1049/ic:20070193

Cited by 18 publications

(13 citation statements)

References 2 publications

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“…A 2 ϫ 2 MIMO-OFDM using direct up-downconversion is reported for 1000 km SSMF transmission at 21.4 Gbits/ s [40] and using intermediate frequency up-downconversion is reported for 4160 km transmission of 16 channels at 52.5 Gbits/ s [14]. We note that PMD mitigation using direct-detection optical OFDM has also been proposed and investigated [27,41,42]. In the remainder of this section, we will present these important results of coherent optical MIMO-OFDM through simulation as well as experimental work.…”

Section: Simulation and Experimental Study Of Mimo-ofdm Systemsmentioning

confidence: 99%

Coherent optical OFDM: has its time come? [Invited]

et al. 2008

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There has been growing interest in coherent optical orthogonal frequencydivision multiplexing (CO-OFDM). We aim to present the case that the time for CO-OFDM has come, in terms of the demand from today's ever-advancing optical networks and the availability of its underlying technologies. We first lay out the signal processing aspect for CO-OFDM and then show a 2 ϫ 2 multiple-input-multiple-output (MIMO) OFDM representation for the singlemode fiber optical channel. Through numerical simulation and experimental demonstration, we further present and discuss various MIMO-OFDM systems focusing on their polarization-mode dispersion resilience. Among those systems, the 2 ϫ 1 MIMO-OFDM configuration incorporating polarization-time coding shows promise for optical access networks and broadcast networks. Finally, another class of the frequency-domain equalization techniques, namely, incoherent or coherent optical single-carrier frequency-domain equalization (CO-SCFDE) is discussed and experimentally demonstrated.

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Section: Simulation and Experimental Study Of Mimo-ofdm Systemsmentioning

confidence: 99%

Coherent optical OFDM: has its time come? [Invited]

et al. 2008

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“…The seven-subcarrier CoWDM offers a greater than 4-fold improvement in the DGD tolerance when compared to other formats (taking into account the 1.2ps measurement error). The use of a polarization-diverse coherent receiver with digital PMD compensation could also increase the maximum tolerable DGD, but only at the expense of considerable increase in complexity [16].…”

Section: Pmd Tolerance Of Coherent Wdmmentioning

confidence: 99%

PMD tolerance of 288 Gbit/s Coherent WDM and transmission over unrepeatered 124 km of field-installed single mode optical fiber

Frascella¹,

Gunning²,

Ibrahim³

et al. 2010

Opt. Express

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Low-cost, high-capacity optical transmission systems are required for metropolitan area networks. Direct-detected multi-carrier systems are attractive candidates, but polarization mode dispersion (PMD) is one of the major impairments that limits their performance. In this paper, we report the first experimental analysis of the PMD tolerance of a 288Gbit/s NRZ-OOK Coherent Wavelength Division Multiplexing system. The results show that this impairment is determined primarily by the subcarrier baud rate. We confirm the robustness of the system to PMD by demonstrating error-free performance over an unrepeatered 124km fieldinstalled single-mode fiber with a negligible penalty of 0.3dB compared to the back-to-back measurements.

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“…After transmission of an OFDM signal over a fiber-exhibiting PMD, the polarization alignment between the optical carrier and the subcarriers may fade, and the mixing of the optical carrier and the subcarriers may lead to zero product, making data transmission in these subcarriers impossible. To overcome polarization fading, polarization diversity receivers are an attractive option [22,35].…”

Section: Direct Detection Optical Ofdmmentioning

confidence: 99%

Optical OFDM: A promising high-speed optical transport technology

Buchali

Dischler

Liu³

2009

Bell Labs Tech. J.

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Orthogonal frequency division multiplexing (OFDM) isalready started. The increase in overall network capacity can be achieved by an increase in the data rate per wavelength channel, the number of dense wavelength division multiplexing (DWDM) channels per fiber, or the number of applied fibers. The increase in data rate per channel is the most important means for costeffective growth of the overall network capacity from an installation and operation point of view. However,

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PMD tolerant direct-detection optical OFDM system

Abstract: We show that PMD degrades the transmission performance of an optical OFDM system which is based on direct-detection and single side-band transmission. Maximum PMD tolerance can be achieved applying polarization diversity together with polarization control.

Cited by 18 publications

References 2 publications

Coherent optical OFDM: has its time come? [Invited]

Coherent optical OFDM: has its time come? [Invited]

PMD tolerance of 288 Gbit/s Coherent WDM and transmission over unrepeatered 124 km of field-installed single mode optical fiber

Optical OFDM: A promising high-speed optical transport technology

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