Topic
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.
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TL;DR: In this paper, the authors proposed a coherent optical orthogonal frequency division multiplexing (CO-OFDM) to mitigate polarisation mode dispersion (PMD) in optical media.
Abstract: Coherent optical orthogonal frequency division multiplexing (CO-OFDM) to mitigate polarisation mode dispersion (PMD) in optical media is proposed. It is shown that PMD in deployed links can be overcome by CO-OFDM systems at 10 Gbit/s and beyond.
57 citations
TL;DR: In this article, a residual dispersion compensating octagonal photonic crystal fiber (OPCF) with an elliptical array of circular air-holes in the fiber core region is proposed.
Abstract: A residual dispersion compensating octagonal photonic crystal fiber (OPCF), with an elliptical array of circular air-holes in the fiber core region, is proposed. The full-vector finite-element method with perfectly matched layer boundary is used as the analysis tool. It is demonstrated that it is possible to obtain large average negative dispersion of –562.52 ps/(nm · km) over 240 nm and –369.10 ps/(nm · km) over 630 nm wavelength bands for the fast and the slow axis, respectively. In addition to large negative dispersion, ultra-high birefringence, high nonlinearity, and zero-dispersion wavelengths with low confinement loss are also warranted. The proposed OPCFs would be a promising candidate for residual dispersion compensation, supercontinuum generation, and other applications.
57 citations
Patent•
22 Dec 1999
TL;DR: In this article, a high order polarization mode dispersion (PMD) compensation arrangement was proposed to compensate for PMD in an optical signal using a temporal imaging technique, where the phase of the first and second polarization components associated with each data bit were delayed by a predetermined amount.
Abstract: A high order polarization mode dispersion (PMD) compensation arrangement (10) compensates for PMD in an optical signal using a temporal imaging technique. An optical data input signal to the PMD compensator arrangement includes first and second polarization components for each bit of data that have been subjected to PMD. In the PMD compensation arrangement (10) a clock recovery arrangement (30) generates an electrical clock output control signal including a predetermined phase modulation depth and phase and a data rate of the received optical input data signal. A phase modulator (26) is responsive to the optical input data signal and the electrical clock output control signal from the clock recovery arrangement (30) for generating an optical output signal. In this optical output signal, the phase of the first and second polarization components associated with each data bit are delayed by a predetermined amount. A dispersive unit (28) introduces a predetermined amount of dispersion to the first and second polarization components in the optical output signal from the phase modulator (26) for generating an output optical signal from the PMD compensation arrangement (10) wherein the first and second polarization components for each data bit are in phase.
57 citations
22 Feb 1977
TL;DR: In this paper, the polarization sensitivity of single-mode optical fibers has been investigated and an additional implication of the sensitivity is the introduction of delay distortion in'single' mode fibers.
Abstract: The polarization characteristics of 'single' mode optical fibers have been the subject of several publications . An understanding of the polarization sensitivity of such fibers is important in assessing the applicability of polarization dependent optical circuitry . An additional implication of the polarization sensitivity is the introduction of delay distortion in 'single' mode fibers.
57 citations
TL;DR: In this article, the degree of polarization degradation in anisotropic single-mode fibers is investigated in terms of light source spectrum, incident polarization condition, and fiber parameters. But the degradation is determined by the mutual correlation function γ, between the two modes, which depends on the light source spectra, fiber polarization dispersion, and the fiber length.
Abstract: The degree of polarization for propagation waves in anisotropic single-mode fibers is formulated in terms of light source spectrum, incident polarization condition, and fiber parameters. The polarization degree deterioration is based on the incident wave split into two eigenpolarization modes inherent in the fiber. Since the two eigenpolarization modes have different group velocities from each other, the degree of polarization is degraded when both of the modes are excited. Polarization degree is preserved when only one of the eigen-polarization modes is excited. The degradation is determined by the mutual correlation function γ, between the two modes, which depends on the light source spectra, fiber polarization dispersion, and fiber length.
57 citations