Results 201 to 210 of about 103,779 (259)
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Polarization maintaining Single-mode fibers
Conference on Lasers and Electro-Optics, 1981Polarization-maintaining single-mode fibers will find application in acoustooptic sensors and fiber gyroscopes. In this study both stress-induced birefringence and elliptical core polarization-maintaining single-mode fibers were developed and evaluated.
F I, Akers, R E, Thompson
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Polarization-Maintaining Fibers
Applied Scientific Research, 1982The parameters that determine the polarization-maintaining ability and the polarization-dispersion of a birefringent fiber are discussed in a tutorial fashion. Based on promising theoretical and experimental results, I conclude that fibers with adequate polarization-maintaining properties for sophisticated heterodyne and homodyne applications are ...
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The cellular mechanisms that maintain neuronal polarity
Nature Reviews Neuroscience, 2016As polarized cells, neurons maintain different sets of resident plasma membrane proteins in their axons and dendrites, which is consistent with the different roles that these neurites have in electrochemical signalling. Axonal and dendritic proteins are synthesized together within the somatodendritic domain; this raises a fundamental question: what is ...
Marvin, Bentley, Gary, Banker
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Maintaining polarization in polarimetric multiphoton microscopy
Journal of Biophotonics, 2015Polarimetric measurements in multiphoton microscopy can reveal information about the local molecular order of a sample. However, the presence of a dichroic through which the excitation beam propagates will generally scramble its polarization. We propose a simple scheme whereby a second properly‐oriented compensation dichroic is used to negate any ...
Erik, Bélanger +7 more
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Radiation effects in polarization-maintaining fibers
Optical Fiber Communication Conference, 1989One likely application for polarization-maintaining (PM) fiber is in fiber-optic gyroscopes onboard spacecraft. Severe performance degradation could occur if the PM fiber is sensitive to the space radiation environment, which depends on such factors as the spacecraft orbit, shielding by the skin and structure, and sunspot activity.
L. A. .. Brambani +4 more
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Polarized growth: maintaining focus on the tip
Current Opinion in Plant Biology, 2006Tip growth, a spatially focused cell expansion, has been best characterized in two plant cell types: pollen tubes and root hairs. It has long been established that both cell types require three intracellular components for this process: a tip-high calcium gradient, a polarized actin cytoskeleton, and tip-directed vesicle trafficking.
Rex A, Cole, John E, Fowler
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Properties of Rectangular Polarizing and Polarization Maintaining Fiber
SPIE Proceedings, 1987Polarization maintaining fiber with a near rectangular cross section, made by preform deformation, has demonstrated extinction ratios for 5 meter lengths of 43 dB, h parameter values of 1.7x10-6 m-1 for 100 meter lengths and losses of 0.8 dB/km at 1.3 and 1.5ttm.
J. R. Simpson +4 more
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Polarization Effects in Polarization-Independent and Polarization Maintaining Fiber Amplifiers
2006 Digest of the LEOS Summer Topical Meetings, 2006Polarization effects in fiber optical amplifiers are described. Theoretical and experimental results for the statistical variation of the polarization extinction ratio (PER) in a PM amplifier are presented. PER variation between units and over temperature is analyzed.
A.R. Grant, P.F. Wysocki, D.P. Holcomb
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Polarization‐maintaining near‐field optical probes
Journal of Microscopy, 2008SummaryWe demonstrate that tapered optical fibre probes can be easily modified in the taper cone to realize an electric dipole producing a well‐defined near‐field polarized light. This novel structure is made of a Short‐cut Double C–shaped probe design combined to the usual full metal coating near the tapered end of the fibre.
Patanè S. +5 more
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Polarization-maintaining fibers and their applications
Journal of Lightwave Technology, 1986Polarization-maintaining fibers and their applications are reviewed. The classification of high-birefringent fibers and low-birefringent fibers and their fabrication methods and characteristics are discussed in Section II. Analytical methods and numerical methods for fiber design on the birefringence are presented in Section III. Degradation factors of
J. Noda, K. Okamoto, Y. Sasaki
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