Hello Nyagudi , Would you please post any referances to validate your statements ? This is not meant to disparage those statements just to shed a bit more light ;-) . Tia, JimL On Sun, 20 Jul 2003, NM Research wrote: > CLARIFICATION: > In solid state physics light can be amplified quasi-symmetrically by sandwiching gen1,2, or 3 light amplifiers between the relevant polarity filters. Though this process involves photon-electron-photon conversion and well choosen light types and a well calibrated arrangement. Furthermore the amplified light can be routed back into optical fibre in limited quantum communications applications or shone onto a discerning grid (AI) of photocells. > Nyagudi -- +------------------------------------------------------------------+ | James W. Laferriere | System Techniques | Give me VMS | | Network Engineer | P.O. Box 854 | Give me Linux | | babydr@baby-dragons.com | Coudersport PA 16915 | only on AXP | +------------------------------------------------------------------+