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Analysis of Power Transfer on Multi-Core Fibers with Long-Period Gratings

Rocha, Ana M. ; Almeida, T. ; Nogueira, R.N. ; Facão, M.

Optics Letters Vol. 40, Nº 2, pp. 292 - 295, January, 2015.

ISSN (print): 0146-9592
ISSN (online): 1539-4794

Journal Impact Factor: 3,772 (in 2008)

Digital Object Identifier:

Abstract
The use of long-period gratings (LPGs) to distribute optical power from one core to all the cores in a multicore fiber
(MCF) is theoretically analyzed. Simple analytical expressions that describe the mode power’s evolution along the
LPGs are derived from the coupled mode equations. This study demonstrated the power transfer between cores in a
MCF promoted by identical LPGs. Moreover, with this technique, the pump signal can be distributed to all the cores
without interfering with the transmission signals.