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
Do you Yahoo!?
SBC Yahoo! DSL - Now only $29.95 per month!