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Integrated optical 90 degrees-hybrid on LiNbO3 for phase diversity receivers

 
: Hoffmann, D.; Heidrich, H.; Wenke, G.; Langenhorst, R.

IEE Electronics Division:
Fourteenth European Conference on Optical Communication, ECOC 88. Vol.2. Post deadline papers : 11 - 15 September 1988
London: IEE, 1988 (IEE conference publication 292)
ISBN: 0-85296-369-6
S.33-36
European Conference on Optical Communication (ECOC) <14, 1988, Brighton>
Englisch
Konferenzbeitrag
Fraunhofer HHI ()
integrated optics; lithium compounds; optical communication equipment; receivers; electro-optical tuning; integrated optic eight-port 90 degrees -hybrid; phase pattern; packaged unit; phase fluctuations; temperature induced phase drift; linbo3

Abstract
An integrated optic eight-port 90 degrees -hybrid has been realized on LiNbO3. The phase pattern was tuned electro-optically. The packaged unit showed the desired phase relations of 0 degrees , 90 degrees , 180 degrees and 270 degrees between the respective output ports with excellent longterm stability. The phase fluctuations are less than +or-5 degrees and the temperature induced phase drift is 15 degrees / degrees C.

: http://publica.fraunhofer.de/dokumente/N-13854.html