A fagen sadarwa, haɗin haɗin wutar lantarki na wayoyi na ƙarfe yana da matuƙar ƙuntatawa saboda dalilai kamar kutsewar wutar lantarki, taɗi tsakanin lambobin sadarwa da asara, da farashin wayoyi.
A sakamakon haka, an haifi watsawar gani.Watsawa na gani yana da fa'idodi na babban bandwidth, babban ƙarfin aiki, haɗin kai mai sauƙi, ƙarancin hasara, dacewa mai kyau na electromagnetic, babu crosstalk, nauyi mai nauyi, ƙananan girman, da dai sauransu, don haka ana amfani da fitarwa na gani sosai a cikin watsa siginar dijital.
Tsarin asali na ƙirar gani
Daga cikin su, tsarin na'urar gani shine ainihin na'urar a cikin watsa fiber na gani, kuma alamominta daban-daban suna ƙayyade yawan aikin watsawa.Na'urar gani na'urar jigilar kaya ce da ake amfani da ita don watsawa tsakanin na'ura da na'urar, kuma babban aikinsa shi ne canza siginar lantarki na na'urar zuwa siginar gani a ƙarshen watsawa.Tsarin asali ya ƙunshi sassa biyu: "bangaren fitar da haske da kewayensa" da "bangaren karɓar haske da kewayensa".
Na'urar gani ta ƙunshi tashoshi biyu, wato tashar watsawa da tashar karɓa.
Abun da ke ciki da ka'idar aiki na tashar watsawa
Tashar watsawa ta na'urar gani ta ƙunshi na'urar shigar da siginar lantarki, da'irar tuƙi na laser, da'irar madaidaicin da'ira da ɓangaren Laser TOSA.
Ka'idar aikinsa ita ce shigar da keɓancewa ta hanyar sadarwa ta hanyar watsawa, haɗawar siginar wutar lantarki tana gamawa ta hanyar da'irar keɓancewar lantarki, sa'an nan kuma ana daidaita da'irar tuƙi na laser a cikin tashar watsawa, sannan ana amfani da ɓangaren matching impedance don impedance. daidaitawa don kammala daidaitawa da tuƙin siginar, kuma a ƙarshe Aika Laser (TOSA) jujjuyawar wutar lantarki zuwa siginar gani don watsa siginar gani.
Abun da ke ciki da ka'idar aiki na tashar mai karɓa
Module na gani na karɓar tashar ya ƙunshi ɓangaren ganowa na gani ROSA (wanda ya ƙunshi diode photodetection (PIN), amplifier transimpedance (TIA)), da'irar matching impedance, iyakance da'irar amplifier da siginar fitarwa na lantarki.
Ka'idar aikinsa ita ce PIN ɗin yana canza siginar gani da aka tattara zuwa siginar lantarki daidai gwargwado.TIA tana jujjuya wannan siginar lantarki zuwa siginar lantarki, kuma tana haɓaka siginar da aka canza zuwa girman da ake buƙata, kuma tana watsa shi zuwa ga iyaka ta hanyar da'irar madaidaicin impedance. rabon amo, yana rage yawan kuskuren bit, kuma a ƙarshe na'ura mai ba da hanya tsakanin hanyoyin sadarwa ta kammala fitar da siginar.
Aikace-aikace na Optical module
A matsayin ainihin na'urar don canjin hoto a cikin hanyoyin sadarwa na gani, ana amfani da na'urorin gani sosai a cibiyoyin bayanai.Cibiyoyin bayanai na al'ada galibi suna amfani da 1G/10G ƙananan na'urori masu saurin gani, yayin da cibiyoyin bayanan girgije galibi suna amfani da na'urori masu saurin sauri na 40G/100G.Tare da sabon yanayin aikace-aikacen kamar babban bidiyo mai ma'ana, watsa shirye-shiryen rayuwa, da VR suna haifar da saurin haɓakar zirga-zirgar hanyar sadarwa ta duniya, don mayar da martani ga yanayin ci gaba na gaba, buƙatun aikace-aikacen da ke fitowa kamar ƙididdigar girgije, sabis na Iaa S, da manyan bayanai suna sanya buƙatu mafi girma. akan watsa bayanai na ciki na cibiyar bayanai , Wanda zai haifar da na'urorin gani tare da mafi girman adadin watsawa a nan gaba.
Gabaɗaya, lokacin da muka zaɓi na'urorin gani na gani, galibi muna la'akari da abubuwa kamar yanayin aikace-aikacen, buƙatun watsa bayanai, nau'ikan mu'amala, da nisan watsawar gani (yanayin fiber, ƙarfin gani da ake buƙata, tsayin tsakiya, nau'in Laser) da sauran dalilai.