Novel fiber design for broadband long period gratings

摘要

We report a novel fiber design for obtaining long period gratings (LPGs) having a broad transmission spectrum. These gratings are based on guided to guided mode coupling in a staircase profile fiber. Numerical simulations predict 20 dB bandwidths as high as 100 nm and an estimated insertion loss of less than I dB. Such broadband LPGs are expected to find applications in many all fiber components. (C) 2003 Elsevier Science B.V. All rights reserved. [References: 10]