Indicators ntawm lubMach-Zehnder modulator
Lub Mach-Zehnder Modulator (abbreviated liMZM modulator) yog ib qho khoom siv tseem ceeb siv los ua kom tiav cov teeb liab kho qhov muag hauv kev sib txuas lus kho qhov muag. Nws yog ib feem tseem ceeb ntawmElectro-Optic Modulator, thiab nws cov ntsuas kev ua tau zoo cuam tshuam ncaj qha rau kev sib kis tau zoo thiab ruaj khov ntawm kev sib txuas lus. Cov hauv qab no yog ib qho kev taw qhia rau nws cov cim tseem ceeb:
Optical tsis
1. 3dB bandwidth: Nws hais txog qhov ntau zaus thaum lub amplitude ntawm lub modulator cov zis teeb liab poob los ntawm 3dB, nrog rau chav tsev yog GHz. Qhov siab dua qhov bandwidth, qhov siab dua qhov kev txhawb nqa teeb liab kis tau tus mob. Piv txwv li, 90GHz bandwidth tuaj yeem txhawb 200Gbps PAM4 teeb liab kis tau tus mob.
2. Extinction ratio (ER): Qhov piv ntawm qhov siab tshaj plaws tso zis hluav taws xob kho qhov muag mus rau qhov tsawg kawg nkaus lub zog kho qhov muag, nrog rau chav tsev ntawm dB. Qhov siab dua qhov kev ploj tuag, qhov sib txawv ntawm qhov sib txawv ntawm "0" thiab "1" nyob rau hauv lub teeb liab, thiab qhov muaj zog tiv thaiv lub suab nrov.
3. Insertion poob: Lub optical fais fab poob qhia los ntawm lub modulator, nrog rau chav tsev ntawm dB. Qhov qis dua qhov poob qis, qhov ntau dua qhov kev ua haujlwm ntawm tag nrho.
4. Rov qab poob: Qhov piv ntawm qhov cuam tshuam ntawm lub zog kho qhov muag ntawm qhov kev tawm tswv yim kawg rau lub tswv yim kho qhov muag, nrog rau chav tsev ntawm dB. Kev poob siab rov qab tuaj yeem txo qhov cuam tshuam ntawm lub teeb pom kev ntawm lub system.
Kev ntsuas hluav taws xob
Ib nrab-yoj voltage (Vπ): Qhov voltage yuav tsum tau ua kom muaj 180 ° theem sib txawv ntawm qhov tso zis optical teeb liab ntawm lub modulator, ntsuas nyob rau hauv V. Qhov qis dua Vπ, qhov me dua qhov yuav tsum tau tsav voltage thiab qis zog noj.
2. VπL tus nqi: Cov khoom ntawm ib nrab-yoj voltage thiab lub modulator ntev, xav txog cov modulation efficiency. Piv txwv li, VπL = 2.2V·cm (L = 2.58mm) sawv cev rau qhov ntsuas hluav taws xob xav tau ntawm qhov ntev.
3. Dc bias voltage: Nws yog siv los stabilize qhov chaw khiav hauj lwm ntawm lubmodulatorthiab tiv thaiv kev tsis ncaj ncees drift los ntawm yam xws li kub thiab vibration.
Lwm cov cim tseem ceeb
1. Cov ntaub ntawv tus nqi: Piv txwv li, 200Gbps PAM4 teeb liab kis tau tus mob muaj peev xwm cuam tshuam txog kev sib txuas lus siab muaj peev xwm txhawb nqa los ntawm tus modulator.
2. TDECQ tus nqi: Qhov ntsuas ntsuas qhov zoo ntawm cov teeb liab modulated, nrog rau chav tsev yog dB. Qhov siab dua tus nqi TDECQ, qhov muaj zog lub teeb liab lub peev xwm los tiv thaiv lub suab nrov thiab qis dua qhov yuam kev me ntsis.
Cov ntsiab lus: Qhov kev ua tau zoo ntawm lub Peb Hlis-Zendl modulator tau txiav txim siab los ntawm cov ntsuas xws li optical bandwidth, extinction ratio, insertion poob, thiab ib nrab-yoj voltage. High bandwidth, tsis tshua muaj qhov poob qis, siab extinction piv thiab qis Vπ yog cov yam ntxwv tseem ceeb ntawm kev ua haujlwm siab modulators, uas cuam tshuam ncaj qha rau tus nqi sib kis, kev ruaj ntseg thiab kev siv hluav taws xob ntawm kev sib txuas lus kho qhov muag.
Post lub sij hawm: Aug-18-2025