Fiber optic refractive index reconstruction from its near-field image

- Meiliayana; - Muljono

doi:10.1117/12.444559

16 October 2001 Fiber optic refractive index reconstruction from its near-field image

- Meiliayana, - Muljono

Proceedings Volume 4603, Fiber Optics and Optoelectronics for Network Applications; (2001) https://doi.org/10.1117/12.444559
Event: International Symposium on Optoelectonics and Microelectronics, 2001, Nanjing, China

Abstract

Refractive index profile is required to calculate waveguide properties. This profile can be reconstructed by analyzing its near field image. The measured near field image, which is obtained by using inverse propagation mode near field method, is processed by a computer image processing programme. The image processing procedures adopted in this work include background noise substraction, gamma correction, smoothing and filtering with neighborhood averaging filter. These procedures produced a parabolic refractive index profile. By fitting half of refractive index profile in x and y direction from fiber center using non linear least square regression technique, it is known that the index profile had a power factor, alpha equals 2.218958 in y direction and (alpha) equals 2.626216 in x direction. Fitting process is also derived for variety refractive index profile according to power-law profiles ((alpha) -profiles), with power factor, (alpha) equals 1,2,4, and 10 to the measured refractive index profile. The best fitted curve is determined by its minimum deviation.

Citation Download Citation

- Meiliayana and - Muljono "Fiber optic refractive index reconstruction from its near-field image", Proc. SPIE 4603, Fiber Optics and Optoelectronics for Network Applications, (16 October 2001); https://doi.org/10.1117/12.444559

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