Title :
A four-channel optical waveguide multi/demultiplexer for 5-GHz spaced optical FDM transmission
Author :
Inoue, Kyo ; Takato, Norio ; Toba, Hiromu ; Kawachi, Masao
Author_Institution :
Electr. Commun. Labs., NTT, Yokosuka-shi, Japan
fDate :
2/1/1988 12:00:00 AM
Abstract :
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
Keywords :
frequency division multiplexing; integrated optics; multiplexing equipment; optical communication equipment; optical couplers; optical waveguides; 5 GHz; Si substrate; SiO2 glass; birefringence; directional couplers; extinction ratio; flame hydrolysis; four-channel optical waveguide; frequency transmittance; loss; optical FDM transmission; optical multi/demultiplexer; polarization; power transfer ratio; reactive ion etching; temperature; transmission loss; Birefringence; Demultiplexing; Directional couplers; Extinction ratio; Fires; Glass; Optical losses; Optical waveguides; Propagation losses; Silicon;
Journal_Title :
Lightwave Technology, Journal of
