Title :
Pseudoheterodyne detection scheme for optical interferometers
Author :
Jackson, D.A. ; Kersey, A.D. ; Corke, M. ; Jones, J.D.C.
Author_Institution :
University of Kent at Canterbury, Physics Laboratory, Canterbury, UK
Abstract :
A heterodyne signal recovery scheme for interferometric sensors based on frequency ramping of the laser diode source is described. Using a PLL detector, signals in the range 10¿4 to 6 rad have been recovered, the system being linear over 5 decades.
Keywords :
electric sensing devices; light interferometers; optical fibres; signal detection; PLL detector; frequency ramping; heterodyne signal recovery scheme; laser diode source; optical fibre interferometric sensors; optical interferometers; pseudoheterodyne detection scheme;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19820740
