Alamun Ma'aunin Mach-Zehnder

Ma'aunin da ke nunaMai daidaita Mach-Zehnder

Ma'aunin Mach-Zehnder (wanda aka taƙaita shi azamanMai daidaita MZM) babbar na'ura ce da ake amfani da ita don cimma daidaiton siginar gani a fannin sadarwa ta gani. Yana da muhimmin sashi naMai daidaita na'urar lantarki (Electro-Optic Modulator), da kuma alamun aiki suna shafar ingancin watsawa da kwanciyar hankali na tsarin sadarwa kai tsaye. Ga gabatarwa ga manyan alamominsa:

Sigogi na gani

1. Bandwidth na 3dB: Yana nufin kewayon mita lokacin da girman siginar fitarwa ta modulator ya ragu da 3dB, tare da na'urar tana GHz. Mafi girman bandwidth, mafi girman saurin watsa siginar da aka tallafa. Misali, bandwidth na 90GHz zai iya tallafawa watsa siginar PAM4 200Gbps.

2. Rabon Karewa (ER): Rabon ƙarfin fitarwa na gani zuwa mafi ƙarancin ƙarfin gani, tare da naúrar dB. Mafi girman rabon karewa, bambancin da ke tsakanin "0" da "1" a cikin siginar ya fi bayyana, kuma ƙarfin hana hayaniya ya fi ƙarfi.

3. Asarar shigarwa: Asarar wutar lantarki ta gani da mai gyara ya gabatar, tare da naúrar dB. Da zarar asarar shigarwar ta yi ƙasa, to, ingancin tsarin gaba ɗaya ya fi girma.

4. Asarar dawowa: Rabon ƙarfin haske mai haske a ƙarshen shigarwa da ƙarfin haske mai shigarwa, tare da naúrar dB. Babban asarar dawowa na iya rage tasirin hasken da aka nuna akan tsarin.

Sigogi na lantarki

Ƙarfin wutar lantarki na rabin-wave (Vπ): Ƙarfin wutar lantarki da ake buƙata don samar da bambanci na mataki na 180° a cikin siginar gani ta fitarwa na mai daidaita wutar lantarki, wanda aka auna a cikin V. Ƙasan Vπ, ƙanƙantar buƙatar ƙarfin wutar lantarki na tuƙi da kuma ƙarancin amfani da wutar lantarki.

2. Ƙimar VπL: Samfurin ƙarfin lantarki na rabin-wave da tsawon modulator, yana nuna ingancin daidaitawa. Misali, VπL = 2.2V·cm (L=2.58mm) yana wakiltar ƙarfin daidaitawa da ake buƙata a takamaiman tsayi.

3. Ƙarfin wutar lantarki na Dc: Ana amfani da shi don daidaita wurin aiki namai daidaitada kuma hana karkatar da son zuciya da abubuwa kamar zafin jiki da girgiza ke haifarwa.

Sauran mahimman alamomi

1. Adadin bayanai: Misali, ikon watsa siginar PAM4 mai girman 200Gbps yana nuna ikon sadarwa mai sauri wanda mai gyara ke tallafawa.

2. Darajar TDECQ: Alamar auna ingancin siginar da aka daidaita, tare da na'urar dB. Mafi girman ƙimar TDECQ, ƙarfin ikon hana hayaniya na siginar yana ƙaruwa kuma ƙimar kuskuren bit ɗin yana raguwa.

Takaitawa: Ana tantance aikin na'urar daidaita hasken wutar lantarki ta Maris-Zendl ta hanyar alamomi kamar bandwidth na gani, rabon karewa, asarar shigarwa, da ƙarfin lantarki na rabin-wave. Babban bandwidth, ƙarancin karewa, babban rabon karewa da ƙarancin Vπ sune manyan fasalulluka na masu daidaita hasken wutar lantarki masu aiki, waɗanda ke shafar ƙimar watsawa, kwanciyar hankali da amfani da makamashi na tsarin sadarwa na gani kai tsaye.