Title :
Temperature dependence of index of refraction of polymeric waveguides
Author :
Moshrefzadeh, R.S. ; Radcliffe, M.D. ; Lee, T.C. ; Mohapatra, S.K.
Author_Institution :
3M Co., St. Paul, MN, USA
fDate :
4/1/1992 12:00:00 AM
Abstract :
The temperature dependence of refractive index of polymer films was determined for a number of slab waveguides by a grating coupling method. This dependence was examined as a function of parameters such as molecular weight and glass transition temperature of the polymer. Temperature-induced changes in NTE-NTM , N being the effective index, were studied systematically for different slab waveguide compositions. It is shown that with proper device design and choice of polymeric materials, thermal effects can be reduced
Keywords :
integrated optics; optical testing; optical waveguides; polymer films; refractive index measurement; device design; effective index; glass transition temperature; grating coupling method; index of refraction; molecular weight; optical couplers; polymer films; polymeric waveguides; refractive index; slab waveguides; temperature dependence; thermal effects; waveguide compositions; Electrooptic modulators; Optical devices; Optical films; Optical losses; Optical refraction; Optical scattering; Optical waveguides; Polymer films; Refractive index; Temperature dependence;
Journal_Title :
Lightwave Technology, Journal of
