Ihe ngosi nke Mach-Zehnder modulator

Ihe ngosi nkeMach-Zehnder modulator

The Mach-Zehnder Modulator (nke emechiri dị kaMZM modulator) bụ isi ngwaọrụ eji eme ihe iji nweta mgbama mgbaama anya n'ọhịa nzikọrịta ozi anya. Ọ bụ ihe dị mkpa akụrụngwa nkeElectro-Optic Modulator, na ihe ngosi arụmọrụ ya na-emetụta ọrụ nnyefe na nkwụsi ike nke usoro nkwurịta okwu. Ihe na-esonụ bụ mmalite nke isi ihe egosi ya:

Ngwa anya

1. 3dB bandwit: Ọ na-ezo aka ugboro ugboro mgbe njupụta nke modulator si mmepụta mgbama dara site 3dB, na unit bụ GHz. Ihe dị elu nke bandwit, nke na-eme ka ọnụego mgbasa ozi akwadoro dị elu. Dịka ọmụmaatụ, bandwit 90GHz nwere ike ịkwado mgbasa ozi 200Gbps PAM4.

2. Oke mkpochapụ (ER) : Oke nke ike ngwa anya kachasị elu na ike opekata mpe, yana nkeji dB. Ka oke mkpochapụ dị elu, ka ọdịiche dị n'etiti "0" na "1" dị na mgbama, na ike mgbochi mkpọtụ siri ike karị.

3. Mfu ntinye: Ọnwụ ike anya nke modulator webatara, ya na unit nke dB. N'ịbụ nke dị ala na ntinye ntinye, na-eme ka arụmọrụ nke usoro ahụ dịkwuo elu.

4. Nlaghachi azụ: Oke nke ike anya na-egosipụta na njedebe ntinye aka na ntinye anya, na unit nke dB. Nkwụghachi azụ dị elu nwere ike ibelata mmetụta nke ìhè na-egosipụta na usoro.

Igwe ọkụ eletrik

Ọkara-wave voltaji (Vπ): voltaji achọrọ iji mepụta ọdịiche nke 180 ° na ngosipụta anya nke modulator, tụrụ na V. Na ala Vπ, obere ihe achọrọ voltaji mbanye na obere ike oriri.

2. VπL uru: Ngwaahịa nke ọkara-efegharị voltaji na ogologo modulator, na-egosipụta arụmọrụ modulation. Dịka ọmụmaatụ, VπL = 2.2V·cm (L=2.58mm) na-anọchi anya voltaji mgbanwe achọrọ n'ogologo.

3. Dc bias voltaji: A na-eji ya mee ka ebe ọrụ nke ọrụ ahụ guzosie ikemodulatorma gbochie ịkpali mbugharị nke ihe ndị dị ka okpomọkụ na ịma jijiji kpatara.

Ihe ngosi igodo ndị ọzọ

1. Ọnụego data: Dịka ọmụmaatụ, ikike nnyefe mgbaàmà 200Gbps PAM4 na-egosipụta ikike nkwurịta okwu dị elu nke modulator kwadoro.

2. TDECQ uru: Ihe na-egosi maka ịlele ogo nke akara modulated, na unit bụ dB. Ka uru TDECQ dị elu, ikike mgbochi mkpọtụ mgbama ahụ na-esiwanye ike ma na-ebelata ọnụego mperi mperi.

Nchịkọta: A na-ekpebi arụmọrụ nke modulator March-Zendl n'ụzọ zuru ezu site na ihe nrịbama dị ka bandwidth anya, oke mkpochapụ, nkwụsị ntinye, na voltaji ọkara-efegharị. Ogologo bandwidth dị elu, nkwụsị ntinye dị ala, oke mbibi dị elu na Vπ dị ala bụ isi ihe dị mkpa nke ndị modulators dị elu, nke na-emetụta kpọmkwem ọnụego nnyefe, nkwụsi ike na ike ike nke usoro nkwurịta okwu anya.