Title :
Crosstalk of passive directional couplers
Author :
Powelson, Judith C. ; Feng, Wei ; Lin, Sihan ; Feuerstein, Robert J. ; Tomic, Darja
Author_Institution :
Calimetrics, Alameda, CA, USA
fDate :
11/1/1998 12:00:00 AM
Abstract :
Crosstalk in directional couplers (DC´s) is an important parameter for device and system performance. Although various crosstalk mechanisms have been studied through the course of integrated optics, the fundamental lower limit for crosstalk is still uncertain. In this paper, crosstalk mechanisms are reviewed and fundamental limits are discussed. A new model for optical scattering is presented, and the effect of bending loss variation between the two propagating modes in the taper region on the crosstalk is discussed
Keywords :
bending; integrated optics; light scattering; optical crosstalk; optical directional couplers; optical waveguide theory; bending loss variation; crosstalk mechanisms; integrated optics; optical scattering; passive optical directional coupler crosstalk; propagating modes; review; system performance; taper region; Directional couplers; Electrodes; Integrated optics; Optical crosstalk; Optical devices; Optical refraction; Optical scattering; Optical waveguide theory; Optical waveguides; Polymers;
Journal_Title :
Lightwave Technology, Journal of
