Title :
Crystalline organic semiconductor optical directional couplers and switches using an index-matching layer
Author :
Zang, D.Y. ; Forrest, S.R.
Author_Institution :
Dept. of Electr. Eng., Univ. of Southern California, Los Angeles, CA, USA
fDate :
4/1/1992 12:00:00 AM
Abstract :
A directional coupler using crystalline organic semiconductor waveguides grown by the vacuum process of organic molecular beam deposition is demonstrated. An index-matching layer placed between two coupled waveguides separated by a 1 mu m gap greatly increases the coupling coefficient, significantly decreasing the coupling length and making the device very compact. Switching of 1.06 mu m wavelength light from one guide to another in the coupler has been observed by pumping the surface of one guide in the coupling region with 0.514 mu m.<>
Keywords :
directional couplers; integrated optics; optical couplers; optical switches; refractive index; semiconductor switches; 0.514 micron; 1 micron; 1.06 micron; IR; compact; coupled waveguides; coupling coefficient; coupling length; coupling region; crystalline organic semiconductor waveguides; directional coupler; index-matching layer; optical pumping; optical switches; organic molecular beam deposition; vacuum process; Crystallization; Directional couplers; Optical coupling; Optical pumping; Optical surface waves; Optical waveguides; Organic semiconductors; Semiconductor waveguides; Surface waves; Waveguide discontinuities;
Journal_Title :
Photonics Technology Letters, IEEE
