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Polarization mode dispersion

About: Polarization mode dispersion is a research topic. Over the lifetime, 5147 publications have been published within this topic receiving 80055 citations. The topic is also known as: PMD.


Papers
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Journal ArticleDOI
TL;DR: A source based on spontaneous parametric downconversion is presented, which allows one to control spectral correlations within the entangled photon pair without spectral filtering by changing the pump-pulse duration or the characteristics of the coupled spatial modes.
Abstract: Spectrally correlated photon pairs can be used to improve the performance of long-range fiber-based quantum communication protocols. We present a source based on spontaneous parametric downconversion, which allows one to control spectral correlations within the entangled photon pair without spectral filtering by changing the pump-pulse duration or the characteristics of the coupled spatial modes. The spectral correlations and polarization entanglement are characterized. We find that the generated photon pairs can feature both positive spectral correlations, decorrelation, or negative correlations at the same time as polarization entanglement with a high fidelity of 0.97 (no background subtraction) with the expected Bell state.

29 citations

Journal ArticleDOI
TL;DR: In this paper, the relationship between a signal's degree of polarization (DOP), all-order polarization mode dispersion (PMD), and the optical spectrum (and hence the data modulation format and pulse width) was investigated.
Abstract: We show theoretically and experimentally the relationship between a signal's degree of polarization (DOP), all-order polarization mode dispersion (PMD), and the optical spectrum (and hence the data modulation format and pulse width), and that these effects must be taken into account when using the DOP for differential group delay (DGD) monitoring. We explain the theory behind how all-order PMD affects a signal's DOP, and observe the pulse-width dependence for 10-, 20-, and 40-Gb/s return-to-zero (RZ) systems as the duty cycle changes. We then analyze and show (via simulation and experimentation) the effects of different data modulation formats (RZ, carrier-suppressed RZ, alternate-chirped RZ, and differential phase-shift keying) on the DOP in a DGD monitor. We conclude that the measurable DGD range and DOP sensitivity in DOP-based DGD monitors are dependent on a signal's pulse width and the data modulation format. We also show the theory behind the effects of first- and second-order PMD on the maximum and minimum DOP.

29 citations

Proceedings ArticleDOI
07 Mar 2000
TL;DR: Spectrally-efficient transmission techniques provide the capability for higher channel density in WDM systems and allow the extension of the transmission distance limited by physical fiber impairments, such as chromatic dispersion and polarization mode dispersion.
Abstract: Spectrally-efficient transmission techniques provide the capability for higher channel density in WDM systems and, in some cases, allow the extension of the transmission distance limited by physical fiber impairments, such as chromatic dispersion and polarization mode dispersion. We review the main techniques and evaluate the potential of their implementation in dense WDM systems.

29 citations

Journal ArticleDOI
TL;DR: A novel method, based on asymmetric modulation in a Sagnac interferometer, that measures the chromatic dispersion of single-mode fibers that provides picosecond temporal resolution without the need for any fast diagnostic equipment and is capable of accurately measuring the average dispersionof fibers several kilometers long.
Abstract: We describe a novel method, based on asymmetric modulation in a Sagnac interferometer, that measures the chromatic dispersion of single-mode fibers. The interferometer incorporates a phase modulator and a test fiber, so the dispersion can be determined from the interference fringe seen when a sweep rf signal is applied to the modulator. This technique provides picosecond temporal resolution without the need for any fast diagnostic equipment and is capable of accurately measuring the average dispersion of fibers several kilometers long.

29 citations

Proceedings ArticleDOI
01 Nov 2008
TL;DR: In this article, both time and frequency-based polarimetric sensing strategies are considered for detecting object translation and motion using differential polarization-based sensing, and the results show that the resulting subbanded architecture provides improved detection sensitivity in comparison to the time-based version as well as to more conventional power-based techniques.
Abstract: Methods for detecting object translation and/or motion using differential polarization-based sensing are described. Both time and frequency-based polarimetric sensing strategies are considered. The time-based detection statistic is formed using the differential time-averaged received signal polarization state. This approach suffers from the impact of polarization-sensitive channel impairments, especially polarization mode dispersion (PMD). As PMD effects become more prominent, the variability of the time-domain signal polarization increases and the average polarization over a detection interval may be substantially different from the instantaneous signal polarization states, detracting from the overall sensitivity of the detection statistic. Frequency-domain approaches, on the other hand, can leverage the relatively stable polarization-frequency signature of the received signal, and can be designed to easily exploit PMD using differential detection in the subbands. Integration of the detections over the full complement of subbands is then used to arrive at a final detection statistic. Using indoor measurements, the resulting subbanded architecture is found to provide improved detection sensitivity in comparison to the time-based version as well as to more conventional power-based techniques, including a subbanded power-based architecture.

29 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202332
202275
202145
202069
201968
201868