Title :
Optical frequency shifter using linearly birefringent monomode fibre
Author :
Pannell, C.N. ; Tatam, Ralph P. ; Jones, J.D.C. ; Jackson, D.A.
Author_Institution :
University of Kent at Canterbury, Physics Laboratory, Canterbury, UK
Abstract :
An optical frequency shifter has been constructed which uses travelling acoustic flexure waves induced on a single linearly birefringent monomode fibre to produce mode coupling between the two orthogonal polarisation eigenmodes. The output of the frequency shifter is examined using a heterodyne interferometer. The measured efficiency was ¿2% at a shift frequency of 491 kHz.
Keywords :
acousto-optical devices; birefringence; optical fibres; 2 percent; 491 kHz; heterodyne interferometer; linearly birefringent monomode fibre; mode coupling; optical frequency shifter; orthogonal polarisation eigenmodes; shift frequency; travelling acoustic flexure waves;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870599
