Polarization-mode separation and the emission geometry of pulsar 0823 + 26: A new pattern of pulsar emission?

1995 ◽  
Vol 16 (3-4) ◽  
pp. 327-355 ◽  
Author(s):  
Joanna M. Rankin ◽  
N. Rathnasree
Keyword(s):  
Polarization Mode ◽  
Pulsar Emission ◽  
Mode Separation

scholarly journals Machine Learning Based Corrosion-like Defect Estimation with Shear-Horizontal Guided Waves Improved by Mode Separation

IEEE Access ◽  
2021 ◽  
pp. 1-1
Author(s):  
Mateus Gheorghe de Castro Ribeiro ◽  
Alan Conci Kubrusly ◽  
Helon Vicente Hultmann Ayala ◽  
Steve Dixon
Keyword(s):  
Machine Learning ◽  
Guided Waves ◽  
Mode Separation ◽  
Defect Estimation ◽  
Shear Horizontal

In-line liquid-crystal microcell wave plates and their application for high-speed, reset-free polarization mode dispersion compensation in 40-Gbit/s systems

2003 ◽  
Vol 42 (27) ◽  
pp. 5407 ◽  
Author(s):  
Bharat R. Acharya ◽  
Lothar Möller ◽  
Kirk W. Baldwin ◽  
Robert A. MacHarrie ◽  
Ray A. Stepnoski ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
High Speed ◽  
Dispersion Compensation ◽  
Polarization Mode Dispersion ◽  
Polarization Mode ◽  
Mode Dispersion ◽  
Free Polarization

scholarly journals Birefringence and Polarization Mode Dispersion Phenomena of Commercial Optical Fiber in Telecommunication Networks

2020 ◽  
Vol 1655 ◽  
pp. 012160
Author(s):  
Saktioto ◽  
Yoli Zairmi ◽  
Velia Veriyanti ◽  
Wahyu Candra ◽  
Romi Fadli Syahputra ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Polarization Mode Dispersion ◽  
Telecommunication Networks ◽  
Polarization Mode ◽  
Mode Dispersion

scholarly journals A statistical analysis of the nulling pulsar population

2021 ◽  
Vol 502 (4) ◽  
pp. 4669-4679
Author(s):  
Sofia Z Sheikh ◽  
Mariah G MacDonald
Keyword(s):  
Statistical Analysis ◽  
Pulse Width ◽  
Local Minimum ◽  
Broad Band ◽  
Selection Effects ◽  
Clustering Methods ◽  
Pulsar Emission ◽  
Spin Period ◽  
Null State ◽  
Linear Correlations

ABSTRACT Approximately 8 per cent of the ∼2800 known pulsars exhibit ‘nulling,’ a temporary broad-band cessation of normal pulsar emission. Nulling behaviour can be coarsely quantified by the nulling fraction, which describes the percentage of time a given pulsar will be found in a null state. In this paper, we perform the most thorough statistical analysis thus far of the properties of 141 known nulling pulsars. We find weak, non-linear correlations between nulling fraction and pulse width, as well as nulling fraction and spin period which could be attributed to selection effects. We also further investigate a recently hypothesized gap at 40 per cent nulling fraction. While a local minimum does exist in the distribution, we cannot confirm a consistent and unique break in the distribution when we investigate with univariate and multivariate clustering methods, nor can we prove the existence of two statistically distinct populations about this minimum. Using the same methods, we find that nulling pulsars are a statistically different population from normal, radio, non-nulling pulsars, which has never been quantitatively verified. In addition, we summarize the findings of the prior nulling pulsar statistics literature, which are notoriously contradictory. This study, in context, furthers the idea that nulling fraction alone does not contain enough information to describe the behaviour of a nulling pulsar and that other parameters such as null lengths and null randomness, in addition to a better understanding of selection effects, are required to fully understand this phenomenon.

scholarly journals Direct detection of the optical field beyond single polarization mode

2018 ◽  
Vol 26 (3) ◽  
pp. 3368 ◽  
Author(s):  
Di Che ◽  
Chuanbowen Sun ◽  
William Shieh
Keyword(s):  
Direct Detection ◽  
Optical Field ◽  
Polarization Mode ◽  
Single Polarization
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