Dzina lonse la optical module ndioptical transceiver, chomwe ndi chipangizo chofunika kwambiri mu optical fiber communication system. Ili ndi udindo wosinthira chizindikiro cha kuwala cholandilidwa kukhala chizindikiro chamagetsi, kapena kusintha chizindikiro chamagetsi cholowera kukhala chizindikiro chokhazikika pamlingo wofanana.
TheOptical module imapangidwa ndi zida za optoelectronic, mabwalo ogwirira ntchito ndi mawonekedwe owonekera. Zida za optoelectronic zili ndi magawo awiri: kutumiza (TOSA) ndi kulandira (ROSA).
Zofunikira zaukadaulo za module ya optical zimaphatikizira mphamvu yamagetsi yopatsirana, chiŵerengero cha kuzimiririka, kulandira kukhudzika, ndi mphamvu yodzaza ndi kuwala.
1. Mphamvu yamagetsi yopatsirana imatanthawuza masamu a mphamvu ya kuwala pamene chizindikiro cha 1 ndi mphamvu ya kuwala pamene ili 0.
2. Chiŵerengero cha kuzimiririka chikutanthauza chiŵerengero cha mphamvu ya kuwala yopatsirana ya ma code onse "1" ku mphamvu ya kuwala yopatsirana ya ma code "0". Zidzakhudza kukhudzidwa kwa kulandira. Chiŵerengero cha kuzimiririka chiyenera kulamuliridwa pamlingo woyenerera. Chiŵerengero chachikulu cha kuzimiririka ndichothandiza kuchepetsa Chilango cha Mphamvu, koma chokulirapo chidzawonjezera jitter yokhudzana ndi chitsanzo cha laser.
3. Kulandira kukhudzika kumatanthauza malire ochepa omwe mapeto olandira angalandire chizindikiro. Pamene mphamvu ya chizindikiro cha mapeto olandirayo ndi yocheperapo kusiyana ndi kumvera kovomerezeka, mapeto olandira sadzalandira deta iliyonse.
4. Mphamvu yamagetsi yowonongeka imatanthawuza mphamvu yowoneka bwino kwambiri yomwe imapezeka pamapeto olandila a module optical, kawirikawiri -3dBm. Mphamvu ya kuwala yolandiridwa ikakula kuposa mphamvu yodzaza ndi kuwala, zolakwika pang'ono zidzapangidwanso. Chifukwa chake, ngati gawo la optical lomwe lili ndi mphamvu yayikulu yotumiza kuwala iyesedwa popanda kutsitsa ndi loopback, zolakwika pang'ono zidzachitika.
