hat
Itilize aktyèl UN, plizyè chanèl ptik diferan D' kapab fè te konbine, ki pwal pèmèt miltip sèvis pou transmis a sanble via fibre san entèferans. Kisa ki konn sa posib se Lefèt ke diferan limyè koulye a yo dwe (D') pa afekte ak lòt. Pou transmèt, limyè koulye a yo dwe ap multiplexées sou yon fibre w ap itilize yon D'-espesifik filtre (multiplexage). Nan lòt (réception) fen liy lan, D' yo ki divize ankò, ni olye de sa, demultiplexed. Mwen chè, yon liy transmisyon se yon multiplexeur ak yon demultiplexer.
eng
By using passive multiplexers, several optical channels of different wavelengths can be combined, which will allow multiple services to the transmitted together via fiber without interference. What makes this possible is the fact that different light colours (wavelengths) do not affect each other. For transmission, light colours are multiplexed onto an fiber using a wavelength-specific filter (multiplexing). At the other (receiving) end of the line, the wavelengths are divided again, or rather, demultiplexed. Hence, any transmission line consists of a multiplexer and a demultiplexer.