Analysis of the dependence of the guided-mode field distribution on the silica bridges in hollow-core Bragg fibers

S. Selleri; F. Poli; M. Foroni; D. Giovanelli; A. Cucinotta; J. B. Jensen; J. Lægsgaard; A. Bjarklev; G. Vienne; C. Jakobsen; J. Broeng

doi:10.1117/12.722856

17 May 2007 Analysis of the dependence of the guided-mode field distribution on the silica bridges in hollow-core Bragg fibers

S. Selleri, F. Poli, M. Foroni, D. Giovanelli, A. Cucinotta, J. B. Jensen, J. Lægsgaard, A. Bjarklev, G. Vienne, C. Jakobsen, J. Broeng

Author Affiliations +

Proceedings Volume 6588, Photonic Crystal Fibers; 65880U (2007) https://doi.org/10.1117/12.722856
Event: International Congress on Optics and Optoelectronics, 2007, Prague, Czech Republic

Abstract

The guiding properties of fabricated air-silica Bragg fibers with different geometric characteristics have been numerically investigated through a modal solver based on the finite element method. The method has been used to compute the dispersion curves, the loss spectra and the field distribution of the modes sustained by the Bragg fibers under investigation. In particular, the silica bridge influence on the fundamental mode has been analyzed, by considering structures with different cross sections, that is an ideal Bragg fiber, without the silica nonosupports, a squared air-hole one and, finally, a rounded air-hole one, which better describes the real fiber transverse section. Results have shown the presence of anti-crossing points in the effective index curves associated with the transition of the guided mode to a surface mode. Moreover, it has been verified that these surface modes are responsible of the loss peaks in the fiber transmission spectra, also experimentally measured. Surface modes are mainly localized in the regions of the cladding where the bridge supports join the cladding rings, forming silica islands where the field can focuses.

Citation Download Citation

S. Selleri, F. Poli, M. Foroni, D. Giovanelli, A. Cucinotta, J. B. Jensen, J. Lægsgaard, A. Bjarklev, G. Vienne, C. Jakobsen, and J. Broeng "Analysis of the dependence of the guided-mode field distribution on the silica bridges in hollow-core Bragg fibers", Proc. SPIE 6588, Photonic Crystal Fibers, 65880U (17 May 2007); https://doi.org/10.1117/12.722856

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
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Bridges

Silica

Cladding

Optical fibers

Dispersion

Finite element methods

Magnetism

Show All Keywords

Keywords/Phrases

Search In:

Publication Years