Rof Electro-optic modulator 850 nm electro optic intensity modulator 10G

Matsakaicin lalatawar DC

A cikin wannan gwaji, ba a yi amfani da siginonin RF akan tsarin ba.An auna tsaftataccen extinciton DC.
1. Hoto na 5 yana nuna ikon gani na fitarwa na modulator, lokacin da mai sarrafa na'ura ya sarrafa a Peak point.Yana nuna 3.71dBm a cikin zane.
2. Hoto na 6 yana nuna ikon gani na fitarwa na modulator, lokacin da aka sarrafa na'ura mai kwakwalwa a Null point.Yana nuna -46.73dBm a cikin zane.A cikin gwaji na gaske, ƙimar ta bambanta a kusa da -47dBm;kuma -46.73 yana da tsayayye darajar.
3. Saboda haka, ma'auni na barga DC da aka auna shine 50.4dB.

Abubuwan bukatu don babban rabo na ɓarna

1. System modulator dole ne ya sami babban rabo na ɓarna.Halayen tsarin modulator ya yanke shawarar iyakar ƙarewar da za a iya samu.
2. Za a kula da hasken shigar da na'ura mai daidaitawa.Modulators suna kula da polarization.Matsakaicin da ya dace zai iya inganta ƙimar bacewa sama da 10dB.A cikin gwaje-gwajen lab, yawanci ana buƙatar mai sarrafa polarization.
3. Masu kula da son zuciya daidai.A cikin gwajin rabonmu na bacewar DC, an cimma rabon ɓarna 50.4dB.Yayin da takardar bayanan na'ura mai haɓakawa kawai ke lissafin 40dB.Dalilin wannan haɓakawa shine cewa wasu na'urori masu daidaitawa suna tafiya da sauri.Rofea R-BC-KOWANE masu kula da son zuciya suna sabunta ƙarfin wutar lantarki kowane daƙiƙa 1 don tabbatar da amsa mai sauri.