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A four-channel optical waveguide multi/demultiplexer for 5-GHz spaced optical FDM transmission

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4 Author(s)
Inoue, K. ; Electr. Commun. Labs., NTT, Yokosuka-shi, Japan ; Takato, N. ; Toba, H. ; Kawachi, M.

A four-channel optical waveguide multi/demultiplexer for 5-GHz spaced optical FDM transmission is developed. The multi/demultiplexing principle is first presented, followed by the extinction ratio dependence on the power transfer ratio of the directional couplers, transmission loss of the waveguide, and birefringence of the waveguide. Experimental results are described for waveguides of high-silica glass fabricated on the silicon substrate by combination of flame hydrolysis and reactive ion etching. Their measured characteristics, such as frequency transmittance, loss, extinction ratio, and dependence of polarization and temperature are reported and evaluated

Published in:

Lightwave Technology, Journal of  (Volume:6 ,  Issue: 2 )

Date of Publication:

Feb 1988

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