A tunable fiber-optic LED illumination system for non-invasive measurements of the characteristics of a transparent fiber

Grzegorz Świrniak; Grzegorz Głomb

doi:10.1117/12.2269795

26 June 2017 A tunable fiber-optic LED illumination system for non-invasive measurements of the characteristics of a transparent fiber

Grzegorz Świrniak, Grzegorz Głomb

Author Affiliations +

Proceedings Volume 10330, Modeling Aspects in Optical Metrology VI; 1033019 (2017) https://doi.org/10.1117/12.2269795
Event: SPIE Optical Metrology, 2017, Munich, Germany

Abstract

This study reports an application of a fiber-optic LED-based illumination system to solve an inverse problem in optical measurements of characteristics of a single-mode fiber. The illumination system has the advantages of low temporal coherence, high intensity, collimation, and thermal stability of the emission spectrum. The inverse analysis is investigated to predict the values of the diameter and refractive index of a single-mode fiber and applies to the far field scattering pattern in the vicinity of a polychromatic rainbow. As the inversion possibility depends considerably on the properties of the incident radiation, a detailed discussion is provided on both the specification of the illumination system as well as preliminary characteristics of the produced radiation. The illumination system uses a direct coupling between a thermally-stabilized LED junction and a plastic optical fiber, which transmits light to an optical collimator. A numerical study of fiber-to-LED coupling efficiency helps to understand the influence of lateral and longitudinal misalignments on the output power.

Citation Download Citation

Grzegorz Świrniak and Grzegorz Głomb "A tunable fiber-optic LED illumination system for non-invasive measurements of the characteristics of a transparent fiber", Proc. SPIE 10330, Modeling Aspects in Optical Metrology VI, 1033019 (26 June 2017); https://doi.org/10.1117/12.2269795

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
10 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Fiber optic illuminators

Fiber optics

Fiber optics tests

LED lighting

Single mode fibers

Collimation

Inverse problems

Show All Keywords

Keywords/Phrases

Search In:

Publication Years