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Proceedings Paper

Beam profile of laser pointer (VFL-350) after launching in telecommunication fiber optic
Author(s): Mir Saeed Sarollahi
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Paper Abstract

VFL-350 (Visual Fault Locator) Light Source is used to check single-mode and multimode optical fiber cables and components for faults or to locate individual fibers in a bundle. Loss as intrinsic loss (absorbsion and scattering), mechanical loss (splices and connections) are important to estimate the amount of errors in data transmission process (both in single as well as multimode fibers). That is one of the most important parameter of change intensity profile of laser beam. Standard light source that used in this project is an optical pen that have semi guassian beam with out put power 1 mw(class 1) & λ=635 nm that make follow result: Beam propagated from this light source have semi guassian shape and result of some transverse mode. Beam intensity profile of this light source after launching in multimode fiber optics (length=2m & connector: have 20% loss compared by beam intensity profile of optical pen.(connector loss). Situating a filter in path of multi mode fiber optic, don't any change in beam intensity profile of multi mode fiber optics.

Paper Details

Date Published: 25 November 2009
PDF: 8 pages
Proc. SPIE 7506, 2009 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, 750618 (25 November 2009); doi: 10.1117/12.837508
Show Author Affiliations
Mir Saeed Sarollahi, Zanjan (Iran) Telecommunication Co. (Iran, Islamic Republic of)


Published in SPIE Proceedings Vol. 7506:
2009 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments
Yongtian Wang; Yunlong Sheng; Kimio Tatsuno, Editor(s)

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