Title :
Proposal of new narrow-band wavelength filter using grating-assisted vertical contra-directional coupler
Author :
Tanaka, S. ; Utaka, K. ; Yamamoto, T. ; Horita, M. ; Matsusbima, Y.
Author_Institution :
KDD Kamifukuoka R&D Labs., Saitama, Japan
Abstract :
We propose a novel wavelength filter using a grating-assisted vertical contra-directional coupler for an add and drop multiplexer (ADM). It is predicted from our calculations that the bandwidths of the filter can be narrow less than 1 nm and easily controllable by means of the optimization of the device parameters. We have successfully fabricated the InP-based semiconductor filter and also demonstrated filtering bandwidth as narrow as 0.7 nm which is consistent with our calculations
Keywords :
III-V semiconductors; diffraction gratings; indium compounds; integrated optics; multiplexing equipment; optical communication equipment; optical directional couplers; optical fabrication; optical waveguide filters; InP; InP-based semiconductor filter; add and drop multiplexer; bandwidths; device parameters; fabrication; filtering bandwidth; grating-assisted vertical contra-directional coupler; narrow-band wavelength filter; optimization; wavelength filter; Add-drop multiplexers; Bandwidth; Filtering; Filters; Gratings; Narrowband; Optical waveguides; Proposals; Waveguide theory; Wavelength division multiplexing;
Conference_Titel :
Indium Phosphide and Related Materials, 1996. IPRM '96., Eighth International Conference on
Conference_Location :
Schwabisch-Gmund
Print_ISBN :
0-7803-3283-0
DOI :
10.1109/ICIPRM.1996.492019
