Ntlha ea pele, tsebo ea motheo ea optical module
1.Tlhaloso:
Optical module: ke hore, optical transceiver module.
2.Sebopeho:
Optical transceiver module e entsoe ka sesebelisoa sa optoelectronic, potoloho e sebetsang le sebopeho sa optical, 'me sesebelisoa sa optoelectronic se kenyelletsa likarolo tse peli: ho fetisa le ho amohela.
Karolo ea phetisetso ke: lets'oao la motlakase le kenyang lebelo le itseng la khoutu le sebetsoa ke mochini o khannang ka hare ho khanna laser ea semiconductor (LD) kapa leseli emitting diode (LED) ho ntša lets'oao le fetotsoeng la sekhahla se ts'oanang, le optical. matla a ho laola potoloho ea motlakase e fanoa ka hare ho eona. Matla a pontšo ea optical a ntse a tsitsitse.
Karolo e amohelang ke: mochine oa optical signal input oa tekanyo e itseng ea khoutu e fetoloa letšoao la motlakase ka diode ea photodetecting. Ka mor'a preamplifier, lets'oao la motlakase la sekhahla sa khoutu se tsamaisanang le hlahisoa, 'me letšoao la tlhahiso hangata ke boemo ba PECL. Ka nako e ts'oanang, lets'oao la alamo le hlahisoa ka mor'a hore matla a optical a kenngoeng a be tlase ho boleng bo itseng.
3.mekhahlelo le bohlokoa ba module ea optical
Li-module tsa Optical li na le likarolo tse ngata tsa bohlokoa tsa tekheniki ea optoelectronic. Leha ho le joalo, bakeng sa li-module tse peli tsa hot-swappable Optical modules, GBIC le SFP, lintlha tse tharo tse latelang li ameha haholo ha u khetha:
(1) Bophahamo ba maqhubu a bohareng
Ho nanometers (nm), hajoale ho na le mefuta e meraro ea mantlha:
850nm (MM, multimode, theko e tlaase empa sebaka se sekhutšoanyane sa phetisetso, hangata ke 500M feela); 1310nm (SM, mokhoa o le mong, tahlehelo e kholo nakong ea phetisetso empa ho hasana ho fokolang, ka kakaretso ho sebelisetsoa phetisetso ka hare ho 40KM);
1550nm (SM, mokhoa o le mong, tahlehelo e tlaase nakong ea phetisetso empa ho hasana ho hoholo, ka kakaretso e sebelisetsoa phetiso ea sebaka se selelele ka holimo ho 40KM, 'me e ka fetisa ka ho toba 120KM ntle le relay);
(2) Sekhahla sa phetiso
Palo ea li-bits (bits) ea data e fetisoang motsotsoana, ka bps.
Hona joale ho na le mefuta e mene e sebelisoang hangata: 155 Mbps, 1.25 Gbps, 2.5 Gbps, 10 Gbps, joalo-joalo. Sekhahla sa phetisetso hangata se lumellana le morao. Ka hona, 155M optical module e boetse e bitsoa FE (100 Mbps) optical module, 'me 1.25G optical module e boetse e bitsoa GE (Gigabit) optical module.
Ena ke mojule o sebelisoang haholo ho lisebelisoa tsa optical transmission. Ho phaella moo, tekanyo ea eona ea phetisetso ho li-fiber storage systems (SAN) ke 2Gbps, 4Gbps le 8Gbps.
(3) Sebaka sa phetiso
Letšoao la optical ha le hloke ho fetisetsoa hole le ka fetisoang ka kotloloho, ka lik'hilomithara (hape li bitsoa lik'hilomithara, km). Li-module tsa Optical ka kakaretso li na le lintlha tse latelang: multimode 550m, mode e le 'ngoe 15km, 40km, 80km, le 120km, joalo-joalo.