Ihe ngosi nke Mach-Zehnder modulator

Ihe ngosi nkeIhe nrụpụta Mach-Zehnder

Ihe na-eme ka Mach-Zehnder Modulator (nke a kpọrọ "Mach-Zehnder Modulator")MZM modulator) bụ ngwaọrụ dị mkpa eji eme ihe iji nweta mgbanwe mgbaàmà anya n'ọhịa nke nkwukọrịta anya. Ọ bụ akụkụ dị mkpa nkeModulator Electro-Optic, na ihe ngosi arụmọrụ ya na-emetụta kpọmkwem arụmọrụ nnyefe na nkwụsi ike nke sistemụ nkwukọrịta. Ihe na-esonụ bụ okwu mmalite nke ihe ngosi ya bụ isi:

Paramita anya

1. 3dB bandwit: Ọ na-ezo aka na oke ugboro ole mgbe oke nke mgbaàmà mmepụta nke modulator dara site na 3dB, ebe nkeji ahụ bụ GHz. Ka bandwit dị elu, otú ahụ ka ọnụego nnyefe mgbaàmà akwadoro dị elu. Dịka ọmụmaatụ, bandwit 90GHz nwere ike ịkwado nnyefe mgbaàmà PAM4 200Gbps.

2. Oke mbibi (ER): Oke nke ike ọkụ eletrik kachasị elu na ike ọkụ eletrik kacha nta, yana nkeji nke dB. Ka oke mbibi ahụ dị elu, otú ahụ ka ọdịiche dị n'etiti "0" na "1" na mgbama ahụ si dị iche, ikike mgbochi mkpọtụ sikwa ike.

3. Mfu nke ntinye: Mfu nke ike anya nke modulator webatara, ya na nkeji nke dB. Ka mfu nke ntinye dị ala, otú ahụ ka arụmọrụ zuru oke nke sistemụ ahụ si dị elu.

4. Mfu nloghachi: Oke nke ike anya a na-egosipụta na njedebe ntinye na ike anya a na-etinye, yana nkeji nke dB. Mfu nloghachi dị elu nwere ike ibelata mmetụta nke ìhè a na-egosipụta na sistemụ ahụ.

Paramita eletriki

Voltaji ọkara-ebili (Vπ): Voltaji achọrọ iji mepụta ọdịiche nkebi 180° na mgbaàmà anya mmepụta nke modulator, nke a tụrụ na V. Ka Vπ dị ala, otú ahụ ka ihe achọrọ maka voltaji draịva na-ebelata ma na-ebelata oriri ike.

2. Uru VπL: Ngwaahịa nke voltaji ọkara-ebili na ogologo modulator, na-egosipụta arụmọrụ modulation. Dịka ọmụmaatụ, VπL = 2.2V·cm (L=2.58mm) na-anọchite anya voltaji modulation achọrọ na ogologo akọwapụtara.

3. Voltaji Dc bias: A na-eji ya eme ka ebe ọrụ nkeihe nhazima gbochie mgbanwe echiche efu nke ihe ndị dị ka okpomọkụ na ịma jijiji na-akpata.

Ihe ngosi isi ndị ọzọ

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

2. Uru TDECQ: Ihe ngosi maka ịtụ àgwà nke mgbaama ndị a gbanwere agbanwe, nke nkeji ahụ bụ dB. Ka uru TDECQ dị elu, otú ahụ ka ikike mgbochi mkpọtụ nke mgbaama ahụ si sie ike ma belata ọnụego njehie bit.

Nchịkọta: A na-ekpebi arụmọrụ nke ihe ngosi March-Zendl nke ọma site na ihe ngosi dịka bandwidth optical, ratio defragmentation, defragment insertion, na voltaji ọkara-ebili. Oke bandwidth, obere defragmentation, oke defragmentation dị elu na obere Vπ bụ isi ihe ndị modulators nwere arụmọrụ dị elu, nke na-emetụta kpọmkwem ọnụego nnyefe, nkwụsi ike na oriri ike nke sistemụ nkwukọrịta optical.