Title :
An optical passive 3-dB TMI-coupler with reduced fabrication tolerance sensitivity
Author :
Veerman, Frank B. ; Schalkwijk, Peter J. ; Pennings, Erik C M ; Smit, Meint K. ; Verbeek, Bastiaan H.
Author_Institution :
Dept. of Electr. Eng., Delft Univ. of Technol., Netherlands
fDate :
3/1/1992 12:00:00 AM
Abstract :
Two-mode-interference (TM) couplers are shorter than weakly coupled waveguides, and less sensitive to production tolerances. Modifications for further reduction of the sensitivity of the coupler to production tolerances are presented and experimentally demonstrated. 3-dB couplers with dimensions of 40×700 μm were realized with 0.5-dB insertion loss
Keywords :
directional couplers; integrated optics; light interference; optical couplers; optical waveguide theory; sensitivity; 0.5 dB; directional couplers; insertion loss; integrated optics; optical couplers; optical passive two-mode-interference couplers; reduced fabrication tolerance sensitivity; Directional couplers; Filling; Helium; Insertion loss; Optical device fabrication; Optical sensors; Optical waveguides; Polarization; Production; Waveguide transitions;
Journal_Title :
Lightwave Technology, Journal of
