Guided entropy mode Rayleigh scattering in optical fibers

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ol374683.pdf (567.71 KB)

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https://opg.optica.org/ol/abstract.cfm?uri=ol-37-4-683

Permanent Link

https://doi.org/10.1364/OL.37.000683
 http://hdl.handle.net/11603/38537

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UMBC Faculty Collection
UMBC Computer Science and Electrical Engineering Department
UMBC Student Collection

Author/Creator

Author/Creator ORCID

https://orcid.org/0000-0003-0269-8433

Date

2012-02-14

Type of Work

journal articles
Text

Department

Program

Citation of Original Publication

Okusaga, O., J. Cahill, A. Docherty, W. Zhou, and C. R. Menyuk. “Guided Entropy Mode Rayleigh Scattering in Optical Fibers.” Optics Letters 37, no. 4 (February 15, 2012): 683–85. https://doi.org/10.1364/OL.37.000683.

Rights

This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
Public Domain

Subjects

Brillouin scattering
Optical fibers
Laser beams
Rayleigh scattering
Variable optical attenuators
Single mode fibers
UMBC Computational Photonics Laboratory

Abstract

Rayleigh scattering in optical fibers has the potential to degrade the performance of low-noise opto-electronic systems. In this Letter, we measure the Rayleigh gain spectrum of optical fibers. Our data show the gain bandwidth and the offset frequency of the Rayleigh gain peak. Both the gain bandwidth and the peak frequency are 3 orders of magnitude lower than the corresponding values for bulk silica. Our data suggest that the narrower gain bandwidth and frequency shift that we observe are due to guided entropy modes in the fiber. This effect is fundamental and will be present in any medium in which light is guided so that transverse intensity gradients exist.