Title :
Polarisation-insensitive digital optical switch using an electro-optic polymer rib waveguide
Author :
Lee, Sang-Shin ; Shin, Sang-Yung
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea
fDate :
2/13/1997 12:00:00 AM
Abstract :
An electro-optic polymer digital optical switch with rib waveguides is fabricated by using the reactive ion etching method. Polarisation-independent and wavelength-insensitive operation is demonstrated at wavelengths of 1.3 and 1.55 μm, for the first time in electro-optic polymer devices. The rib waveguides have been designed to achieve good guiding properties for both TE and TM polarisations by controlling the etching depth as well as its aspect ratio. The measured crosstalk is better than -16 dB and the extinction ratio of each output port is >16 dB
Keywords :
electro-optical switches; optical crosstalk; optical fabrication; optical fibres; rib waveguides; sputter etching; 1.3 micrometre; 1.55 micrometre; TE polarisations; TM polarisation; aspect ratio; crosstalk; electro-optic polymer rib waveguide; etching depth; extinction ratio; guiding properties; output port; polarisation-insensitive digital optical switch; reactive ion etching method; wavelength-insensitive operation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19970210
