Mode matching and insertion loss in ultrabroadband Cr-doped multimode fibers
Journal
Optics Letters
Journal Volume
33
Journal Issue
8
Pages
785-787
Date Issued
2008
Author(s)
Abstract
We investigate the fundamental insertion loss due to mode mismatch in an optical link involving a single-mode fiber-optic (SMF) transmission with the insertion of a segment of a multimode Cr4+-doped fiber (MMCDF). With an MMCDF core diameter of ∼15.5 μm that matches the SMF, we obtained coupling efficiencies of 60.3% to 87.5% in the entire transmission spectral range of 1300 to 1600 nm. The high coupling efficiency (or low insertion loss) makes it possible for the employment of the MMCDF as an inline ultra-broadband optical amplifier in an optical link for the entire transmission spectral range. © 2008 Optical Society of America.
SDGs
Other Subjects
Mode matching; Transmission spectral range; Chromium compounds; Light amplifiers; Light transmission; Multimode fibers; Insertion losses
Type
journal article