Ibipimo bya modulator ya Mach-Zehnder

Ibipimo by'ukoUmuhuzabikorwa wa Mach-Zehnder

Modulator ya Mach-Zehnder (ihinnye nkaModulator ya MZM) ni igikoresho cy'ingenzi gikoreshwa mu kugera ku ihindagurika ry'ibimenyetso by'urumuri mu rwego rw'itumanaho ry'urumuri. Ni igice cy'ingenzi cyaModulator y'amashanyarazi n'amatara, kandi ibipimo by'imikorere yabyo bigira ingaruka zitaziguye ku mikorere myiza y'itumanaho no ku buryo rituje. Ibi bikurikira ni intangiriro y'ibipimo by'ingenzi byabyo:

Ibipimo by'urumuri

1. Umurambararo wa 3dB: Bivuga ku rugero rw'umurambararo iyo uburebure bw'ikimenyetso cy'umukoresha bugabanutseho 3dB, aho igice ari GHz. Uko umurambararo wa bandwidth uba mwinshi, niko umuvuduko wo kohereza ikimenyetso gishyigikiwe uba mwinshi. Urugero, umurambararo wa 90GHz ushobora gushyigikira kohereza ikimenyetso cya PAM4 cya 200Gbps.

2. Igipimo cyo Kuzimira (ER): Igipimo cy'imbaraga ntarengwa zo gutanga optique ugereranije n'imbaraga ntoya zo gukoresha optique, hamwe na dB. Uko igipimo cyo kuzimira kiri hejuru, niko itandukaniro riri hagati ya "0" na "1" mu kimenyetso rigaragara, kandi ubushobozi bwo kurwanya urusaku burushaho gukomera.

3. Gutakaza ingufu z'amashanyarazi: Gutakaza ingufu z'amashanyarazi byashyizweho na modulator, hamwe na dB. Uko igihombo cy'amashanyarazi kigabanuka, niko imikorere myiza ya sisitemu irushaho kuba myiza.

4. Gutakaza ubushobozi bwo gusubiza: Igipimo cy'imbaraga za optique zigaragara ku mpera y'injira n'imbaraga za optique zigaragara, hamwe na dB. Gutakaza ubushobozi bwo gusubiza ibintu ku rugero rwo hejuru bishobora kugabanya ingaruka z'urumuri rugaragara kuri sisitemu.

Ibipimo by'amashanyarazi

Voltage ya kimwe cya kabiri cy'umuraba (Vπ): Voltage ikenewe kugira ngo habeho itandukaniro rya phase ya 180° mu kimenyetso cy'urumuri cya modulator, gipimwe muri V. Uko Vπ iba nto, niko voltage yo gutwara igenda iba nto kandi ingufu zikoreshwa zikaba nke.

2. Agaciro ka VπL: Umusaruro w'amashanyarazi ya kimwe cya kabiri cy'umuraba n'uburebure bwa modulator, bigaragaza imikorere myiza ya modulation. Urugero, VπL = 2.2V·cm (L=2.58mm) igaragaza voltage ya modulation ikenewe ku burebure runaka.

3. Voltage ya Dc bias: Ikoreshwa mu gushimangira aho imikorere y'amashanyarazi ihagazemodulatorkandi hirindwe ko ibintu bihindagurika bitewe n'ubushyuhe n'ihindagurika ry'ikirere.

Ibindi bimenyetso by'ingenzi

1. Igipimo cy'amakuru: Urugero, ubushobozi bwo kohereza ikimenyetso cya PAM4 cya 200Gbps bugaragaza ubushobozi bwo gutumanaho bwihuse bushyigikiwe na modulator.

2. Agaciro ka TDECQ: Ikimenyetso cyo gupima ubuziranenge bw'ibimenyetso byahinduwe, aho igice kiri dB. Uko agaciro ka TDECQ kaba kari hejuru, niko ubushobozi bwacyo bwo kurwanya urusaku burushaho gukomera kandi ni nako igipimo cy'amakosa ya biti kigabanuka.

Incamake: Imikorere ya modulator ya March-Zendl igenwa neza n'ibipimo nka bandwidth y'amajwi, ikigereranyo cyo kuzimira, igihombo cyo kwinjira, na voltage ya kimwe cya kabiri cy'umuraba. bandwidth nini, igihombo gito cyo kwinjira, igihombo kinini cyo kuzimira na Vπ nke ni byo bintu by'ingenzi bigize modulator zifite imikorere myiza, bigira ingaruka ku buryo butaziguye ku gipimo cyo kohereza, gutuza no gukoresha ingufu za sisitemu z'itumanaho ry'amajwi.