Integrated optics (IO) is an optical technology that allows the reproductio
n of optical circuits on a planar substrate. Since 1996, we: have investiga
ted the potentiality of IO in the framework of astronomical single mode int
erferometry. We review in this paper the principles of IO, the requirements
for interferometry and the corresponding solutions offered by IO, the resu
lts of component characterization and the possible fields of application. (
C) 2001 Academie des sciences/Editions scientifiques et medicales Elsevier
SAS.