LP01–LP11Cross-Mode Interference in a Chirped Grating Inscribed in Two-Mode Fiber
Document Type
Article
Publication Date
1-1-2016
Abstract
We have demonstrated LP01-LP11 cross-mode interference in a single chirped grating (CG) inscribed in a two-mode fiber (TMF). With the aid of a binary phase plate, LP01 mode and LP11 mode can be selectively excited in the CG. By offsetting the position of the phase plate from the center of the input beam, we can simultaneously excite both the spatial modes at different LP01:LP11 intensity ratios in the TMF. The excited modes lead to the formation of different interference patterns in the output spectra. The measured output spectra are found to be in good agreement with the simulation based on a coupled mode theory.
Keywords
Bragg gratings, Coupled mode analysis, Few-mode fibers
Divisions
PHYSICS
Funders
University of Malaya HIR Grant (UM.C/625/1/HIR/MOHE/SCI/01), PPP Grant (PG006-2014A) and FRGS (FP002-2013B),National Natural Science Foundation of China (No. 61405160)
Publication Title
IEEE Journal of Quantum Electronics
Volume
52
Issue
6
Publisher
Institute of Electrical and Electronics Engineers (IEEE)