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Low-Loss Optical Multi/Demultiplexer Compatible with Single-Mode Optical Fibers
Masayuki OKUNO Soichi KOBAYASHI
Publication
IEICE TRANSACTIONS (1976-1990)
Vol.E72
No.6
pp.736-741 Publication Date: 1989/06/25 Online ISSN:
DOI: Print ISSN: 0000-0000 Type of Manuscript: PAPER Category: Electro-Optics Keyword:
Full Text: PDF>>
Summary:
A low-loss and high-crosstalk-attenuation two-channel optical multi/demultiplexer for single-mode fiber systems is fabricated. This device is composed of new waveguides compatible with optical fibers (WCF) and interference filters. The waveguides are fabricated by the same method as used for optical fibers. The device has a low insertion loss of less than 2.3 dB, and high far-end and near-end crosstalk attenuations of over 54 dB and 68 dB. Coupling loss between the device and single-mode fibers is measured at less than 0.12 dB. Polarization dependence is not observed in the device.
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