Title :
Improved, operationally-passive interferometric demodulation method using 3×3 coupler
Author :
Todd, M.D. ; Seaver, M. ; Bucholtz, E.
Author_Institution :
Naval Res. Lab., Washington, DC, USA
fDate :
7/18/2002 12:00:00 AM
Abstract :
An improved algorithm for demodulating the phase output of a Mach-Zehnder interferometer that uses a 3×3 coupler is presented. Error analysis and experimental data show how a generalised 3×3 coupler description eliminates signal distortion and frequency mixing
Keywords :
Bragg gratings; Mach-Zehnder interferometers; demodulation; fibre optic sensors; intensity modulation; light interferometry; optical fibre couplers; 3×3 coupler; Mach-Zehnder interferometer; fibre Bragg grating components; fibre optic sensing; frequency mixing; generalised coupler; improved algorithm; operationally-passive interferometric demodulation; phase output; signal distortion; source intensity fluctuation-insensitive algorithm;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20020569
