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IEICE TRANSACTIONS on Electronics

Polymer Tunable Wavelength Filter for WDM Systems

Seiji TOYODA, Akimasa KANEKO, Naoki OOBA, Makoto HIKITA, Masato TSUKADA, Takashi KURIHARA, Tohru MARUNO

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Summary :

We have developed a polymer tunable wavelength filter using cross-linked silicone as a waveguide material for wavelength division multiplexing (WDM) systems. The filter operated with a low insertion loss of 3.6-4.1 dB, a low crosstalk of < -30 dB, and a wide tuning range of 10 nm in the 20 to 80C temperature region without any changes in the spectral profile. We investigated the optical characteristics of the 32-ch WDM signals transmitted through the filter. We realized a stable filtering operation by introducing a feedback system. We also applied the filter to a WDM/SCM (subcarrier multiplexing) broadcast-and-select LAN system. We were able to realize a LAN system which operated at 6 Mbit/s and had 3200 channels by using 10-wavelength WDM signal. This suggests that our polymer tunable wavelength filter is suitable for practical use.

Publication
IEICE TRANSACTIONS on Electronics Vol.E83-C No.7 pp.1119-1124
Publication Date
2000/07/25
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Special Issue on Organic Molecular Electronics for the 21st Century)
Category
Thin Film

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