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Mode scrambler

About: Mode scrambler is a research topic. Over the lifetime, 896 publications have been published within this topic receiving 13595 citations.


Papers
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Proceedings ArticleDOI
14 Jul 2014
TL;DR: In this article, the authors numerically analyze differential mode delay (DMD) management scenarios in few-mode fiber systems with realistic, non unitary mode coupling and show that a significant MDM system memory reduction can be achieved even with moderate coupling losses.
Abstract: We numerically analyze differential mode delay (DMD) management scenarios in few-mode fiber systems with realistic, non unitary mode coupling. Our results indicate a significant MDM system memory reduction even with moderate coupling losses.

4 citations

Journal ArticleDOI
TL;DR: It has been found that the transmission bandwidth can be widened by using mode scramblers and the total transfer function calculated by the linear combination of each fiber's transfer function is in good agreement with the measurement results.
Abstract: Transfer functions of long spliced graded-index fibers are described. The transfer function of a spliced graded-index fiber is determined with the steady state mode exciter and the mode scramblers loaded just after each splicing. Under these conditions, the total transfer function calculated by the linear combination of each fiber's transfer function is in good agreement with the measurement results. It has been found that the transmission bandwidth can be widened by using mode scramblers.

4 citations

Patent
04 Mar 2003
TL;DR: In this article, the optical guide comprises a photosensitive zone inducing a specific index profile along a section of the guide, the said index profile simultaneously defining a longitudinal adiabatic transition and a transverse distribution of the guided mode or modes so as to deconfine the fundamental mode and to maximize the overlap with a higher-order mode.
Abstract: An optical mode converter comprising an optical guide able to transmit an optical signal in at least one guided mode, characterised in that the optical guide comprises a photosensitive zone inducing a specific index profile along a section of the guide, the said index profile simultaneously defining a longitudinal adiabatic transition and a transverse distribution of the guided mode or modes so as to deconfine the fundamental mode and to maximise the overlap with a higher-order mode.

4 citations

Journal ArticleDOI
TL;DR: Experimental results indicate that the proposed low-modal-crosstalk mode converters could achieve better transmission performance and works well for the whole C-band.

4 citations

Proceedings ArticleDOI
06 Jun 1997
TL;DR: In this paper, the authors applied the principle of orthogonality of the vibration mode shapes of a structure to the design of shaped modal sensors, which detect the vibrational response of the structure for the mode for which they are designed.
Abstract: The application of the principle of orthogonality of the vibration mode shapes of a structure to the design of shaped modal sensors, which detect the vibrational response of the structure for the mode for which they are designed, is presented. The principle was applied in the design of shaped polyvinylidene fluoride (PVDF) modal sensors for detecting the first and second modes of the bending vibration of a simply-supported beam. These sensors, which are designed as the mode 1 and the mode 2 sensors, respectively, were bonded to the same surface of a simply-supported steel beam. The beam was subjected to random vibration by an electromagnetic exciter connected to the opposite surface of the beam. The vibrational responses of the beam measured by the distributed mode 1 and mode 2 PVDF shaped sensors are compared with the vibrational responses measured using an accelerometer. It is shown that the distributed sensors produce maximum voltage output for modes 1 and 2, respectively, for which they were designed. Furthermore, is shown that by dividing the mode 1 and mode 2 sensors into two separate halves and adding or subtracting the output signals of these halves, the mode 1 sensor can be used to detect the second mode of vibration of the beam while the mode 2 sensor can be used to detect the first mode of vibration of the beam.© (1997) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.

4 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20234
202220
20213
20202
20196
20186