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.
Papers published on a yearly basis
Papers
More filters
TL;DR: In this paper, different modulation and demodulation methods of the optical differential quadrature phase shift key (DQPSK) and the different modulation formats including nonreturn-to-zero (NRZ), return-tozero (RZ), carrier-suppressed return to zero (CS-RZ) are introduced, studying the different optical signals in the 40Gb/s high speed transmission system.
24 citations
TL;DR: In this article, a dual-concentric-core photonic crystal fibers (PCFs) with an inner low-index core and an outer high index core was investigated based on a full vector finite-element method.
Abstract: Chromatic dispersion of dual-concentric-core photonic crystal fibers (PCFs), which have an inner low-index core and an outer high-index core, is investigated based on a full vector finite-element method. Large negative dispersion can be obtained by introducing avoided crossing between modes of the two asymmetric cores. While increasing the negative dispersion, larger effective mode area is also possible by choosing a higher order mode in the outer core to couple with the fundamental inner core mode. During the analysis, a dual-core PCF with a dispersion peak value of -36 000 ps/(nmldrkm) and effective mode area of 34.8 mum2 is presented.
24 citations
TL;DR: The PMD induces large fluctuations in the amplified signal and reduces the average value of the amplifier gain and the effect of polarization-mode dispersion on the Raman gain process inside the optical fiber used for stimulated Raman scattering is discussed.
Abstract: We present a vector theory of Raman amplification and use it to discuss the effect of polarization-mode dispersion (PMD) on the Raman gain process inside the optical fiber used for stimulated Raman scattering. We show that the PMD induces large fluctuations in the amplified signal and reduces the average value of the amplifier gain. In the case of forward pumping, fluctuations are expected to be more than 15% under typical operating conditions and can exceed 50% for fiber with a relatively low value of the PMD parameter. The PMD effects are much less severe in the case of backward pumping. Signal fluctuations reduce to less than 1% in this case when the PMD parameter exceeds 0.05 ps/km.
24 citations
17 Mar 2001
TL;DR: In this paper, it was shown that the nonlinear phase change due to cross-phase modulation (XPM) induces a bit-pattern-dependent change in the state-of-polarization that translates to uncertainty in the principal states of polarization.
Abstract: We show both numerically and experimentally that the nonlinear phase change due to cross-phase modulation (XPM) induces a bit-pattern-dependent change in the state-of-polarization that translates to uncertainty in the principal states of polarization (PSP). This effect severely limits the effectiveness of first-order polarization mode dispersion (PMD) post-compensation and suggests the use of in-line compensation.
24 citations
TL;DR: By exploiting polarization correlations of light from a broadband fiber-based amplified spontaneous emission source, this work succeeds in reconstructing a hidden polarization in a ghost polarimetry experiment in close analogy to ghost imaging and ghost spectroscopy.
Abstract: By exploiting polarization correlations of light from a broadband fiber-based amplified spontaneous emission source we succeed in reconstructing a hidden polarization in a ghost polarimetry experiment in close analogy to ghost imaging and ghost spectroscopy Thereby, an original linear polarization state in the object arm of a Mach–Zehnder interferometer configuration which has been camouflaged by a subsequent depolarizer is recovered by correlating it with light from a reference beam The variation of a linear polarizer placed inside the reference beam results in a Malus law type second-order intensity correlation with high contrast, thus measuring a ghost polarigram
24 citations