Abstract
Differential group delay (DGD) measurement of narrowband fibre devices was demonstrated using a polarisation scrambler and modulation phase shift technique to enhance measurement immunity to environmental perturbation and repeatability. The effects of environmental perturbations at discrete instances translated to spurious polarisation shifts along the fibre path, giving rise to spikes in the measured DGD. The technique showed good measurement accuracy and wavelength resolution, and was not restricted to linearity and time-invariance issues.
Original language | English |
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Pages (from-to) | 26-28 |
Number of pages | 3 |
Journal | Electronics letters |
Volume | 39 |
Issue number | 1 |
DOIs | |
Publication status | Published - 9 Jan 2003 |