Optical module ili ndi gawo la photoelectronic, dera logwira ntchito, ndi mawonekedwe a kuwala.Chigawo cha photoelectronic chimakhala ndi magawo otumizira ndi kulandira.
Kunena mophweka, ntchito ya optical module ndi photoelectric conversion.Mapeto otumizira amasintha zizindikiro zamagetsi kukhala zizindikiro za kuwala, ndipo mapeto omwe amalandira amasintha zizindikiro za kuwala muzitsulo zamagetsi pambuyo pofalitsa kudzera muzitsulo za optical.
Single mode ikuimiridwa ndi SM, yoyenera kufalitsa mtunda wautali, pamene mitundu yambiri imayimiridwa ndi MM, yoyenera kufalitsa mtunda waufupi. ndi 1310nm ndi 1550nm.
Ma modules optical optical modules amagwiritsidwa ntchito pamtunda wautali, ndi mtunda wopita ku 150 mpaka 200km. Multi-mode optical modules amagwiritsidwa ntchito pafupipafupi, ndi mtunda wopita ku 5km. kutumizira mtunda wautali, ndi mtunda wopita ku 150 mpaka 200km. Multi-mode optical modules amagwiritsidwa ntchito podutsa mtunda waufupi, ndi mtunda wopita ku 5km.
Gwero la kuwala kwa multi-mode optical module ndi kuwala kotulutsa diode kapena laser, pamene kuwala kwa single-mode optical module ndi LD kapena LED yokhala ndi mzere wopapatiza.
Multi-mode Optical modules amagwiritsidwa ntchito makamaka pakufalitsa mtunda waufupi, monga SR.Pali ma node ambiri ndi zolumikizira mumtunduwu wamtunduwu.Choncho, ma multi-mode optical modules amatha kuchepetsa ndalama.
Ma single-mode Optical modules amagwiritsidwa ntchito makamaka pamzere wokhala ndi ma transparation okwera kwambiri, monga MAN ( Metropoliitan area network )
Kuonjezera apo, zipangizo zamakono zimatha kugwira ntchito bwino pazitsulo zamitundu yambiri, pamene zida zamtundu umodzi zimatha kugwira ntchito bwino pamtundu umodzi komanso ulusi wamitundu yambiri.
Module ya single-mode Optical module imagwiritsa ntchito magawo awiri owirikiza kawiri ngati multi-mode optical module.Choncho, mtengo wonse wa single-mode optical module ndi wapamwamba kwambiri kuposa wa multi-mode optical module.
Ma module apamwamba kwambiri sangathe kugwiritsidwa ntchito ngati mawonekedwe otsika kwambiri.A high-rate optical module angagwiritsidwe ntchito ngati otsika optical module.Ngakhale ma modules ena owoneka bwino amagwirizana ndi ma module ena owoneka, ena sagwirizana.
Laser yotulutsidwa ndi single-mode optical module imatha kulowa mu fiber optical, koma mu fiber optical ndi kufalitsa kwamitundu yambiri, kubalalitsidwa kumakhala kwakukulu, kufalikira kwa mtunda waufupi kuli bwino. kumawonjezeka, mphamvu ya kuwala ya mapeto olandira ikhoza kulemedwa.Chifukwa chake, mumalangizidwa kuti mugwiritse ntchito ma single-mode optical fibers m'malo mwa ma multi-mode optical fibers a single-mode optical modules.
Ma module a Optical ayenera kugwiritsidwa ntchito pazotsatira za anzawo.Mwachitsanzo, mlingo wotumizira, mtunda wotumizira, njira yotumizira, ndi kutalika kwa mawonekedwe a ma module optical potumiza ndi kulandira mapeto ayenera kukhala ofanana.Mafotokozedwe a mawonekedwe a ma module opangidwa ndi maulendo osiyanasiyana opatsirana amasiyana kwambiri, ndipo ma modules optical omwe ali ndi maulendo ataliatali amakhala ndi mitengo yapamwamba.
Pamene kutumiza mphamvu ya kuwala kwa anzako kumapeto kuli kwakukulu kuposa malire apamwamba a kulandira mphamvu ya kuwala kwa gawo la optical m'deralo, muyenera kugwirizanitsa ndi optical attenuate chizindikiro cha kuwala pa chiyanjano, ndiyeno gwirizanitsani gawo la optical lapafupi. Optical module Pazogwiritsa ntchito mtunda waufupi, gwiritsani ntchito mawonekedwe a optical attenuation, makamaka pazodzipangira zokha, kupewa kuwotcha module ya optical.