DocumentCode :
819909
Title :
1 
2 Wavelength Multiplexer With High Transmittances Using Extraneous Self-Imaging Phenomenon
Author :
Hong, Jong-Kyun ; Lee, Sang-Sun
Author_Institution :
Electron. & Comput. Eng. Div., Hanyang Univ., Seoul
Volume :
25
Issue :
5
fYear :
2007
fDate :
5/1/2007 12:00:00 AM
Firstpage :
1264
Lastpage :
1268
Abstract :
This paper introduces a wavelength multiplexer (MUX) using the extraneous self-imaging (Ex_SI) phenomenon, which is not mentioned in multimode-interference theory. The Ex_SI phenomenon in silica-based multimode waveguides was experimentally studied. Then, using data for the Ex_SI phenomenon, the wavelength MUX for the wavelengths of 1310 and 1550 nm was developed. The optimum length of the multimode waveguide, with a width of 18 mum, was confirmed as a 3670- mum wavelength MUX. For the wavelengths of 1310 and 1550 nm, the excess losses were determined to be -0.4 and -0.45 dB, respectively, while the extinction ratios were 16.9 and 19.7 dB, respectively
Keywords :
Talbot effect; multiplexing equipment; optical communication equipment; optical losses; optical waveguides; -0.4 dB; -0.45 dB; 1310 nm; 1550 nm; 18 mum; extinction ratio; extraneous self-imaging; multimode interference; silica-based multimode waveguides; wavelength multiplexer; Boundary conditions; Eigenvalues and eigenfunctions; Filters; Finite difference methods; Integral equations; Multiplexing; Optical propagation; Optical waveguide theory; Optical waveguides; Propagation constant; Multimode-interference (MMI) effect; optical devices; planar lightwave circuits (PLCs); self-imaging (SI) phenomenon; wavelength multiplexers (MUXs);
fLanguage :
English
Journal_Title :
Lightwave Technology, Journal of
Publisher :
ieee
ISSN :
0733-8724
Type :
jour
DOI :
10.1109/JLT.2007.894480
Filename :
4167959
Link To Document :
