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Proceedings Paper

Wide-band tapered directional coupler
Author(s): Kazimierz P. Jedrzejewski; Arkadiusz Kosinski
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Paper Abstract

The tapered biconical directional couplers are typically narrowband devices. The oscillations of the output signals is the reason of this feature. Two fibers with different core diameters can be used for wideband flat spectral response of a 2 X 2 coupler. We propose the technique of the local decreasing of a fiber outer diameter by chemical polishing. The singlemode wideband 3 dB couplers were produced with the split ratio tolerances of 5% for the whole region between 2nd and 3rd telecommunication windows.

Paper Details

Date Published: 5 August 1997
PDF: 3 pages
Proc. SPIE 3189, Technology and Applications of Light Guides, (5 August 1997); doi: 10.1117/12.285622
Show Author Affiliations
Kazimierz P. Jedrzejewski, Institute of Electronics Fundamentals (Poland)
Arkadiusz Kosinski, Institute of Electronics Fundamentals (Poland)

Published in SPIE Proceedings Vol. 3189:
Technology and Applications of Light Guides
Jan Wojcik; Waldemar Wojcik, Editor(s)

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