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To: Stephen L who wrote (6300)	1/19/2000 1:11:00 PM
From: Bernard Levy	Read Replies (2) \| Respond to of 12823

OT May be we should start that soliton thread after all. Hi Steven: Solitons can pass through each other and retain their shape. I do not know about the polarization aspects, since I do not know if it is possible to generate EM solitons with a known polarization. You are right of course about the first observation of solitons in the form of solitary waves along shallow water canals (around 1850 in England). As a sidebar, my interest in solitons arose from research I was doing on inverse scattering in the early to mid 80s (a large class of nonlinear equations which support solitons can be linearized by applying what is called a scattering transformation). around 83-84, it became obvious to one of my collaborators and me that solitons would be ideal for digital communications, because of their shape invariance over long distance. So, I call my brother the physicist (in low-temperature physics) at Bell Labs. He scoffs at the whole idea, stating that this is a good theoretical idea, but would not be implementable. About 9 months later Bell Labs has a big announcement about the first demonstration of optical soliton transmission by. L. Mollenauer. So much for expert advice! Best regards, Bernard Levy