Hi I was recently scouring the net looking for a suitable picture to demonstrate the orthogonal mode of an electromagnetic wave in an optical fibre for a presentation on polarisation dispersion (my artistic skills are nil). I came across your moving Java applet description of an EM wave and was suitably impressed as its exactly the type of picture I'm looking for. I was wondering whether you might have still pictures of the sort that I might be able to post in a Powerpoint presentation. If you do I would be much obliged. Thanks Regards Arif Zubairi Product Engineering Nortel Networks External: % 0181 945 3720 ESN: % 730 3720 E-mail: ) zubairi@nortelnetworks.com