A Kev Rov Ua Si Polarization Polarucationyog kev hloov kho kho qhov muag tau siv nyob rau hauv kev sib txuas lus kho qhov muag kho qhov muag;}}} nws yog tsim rauIb txhij xyuas tau ob qho tib si orthogonal polarizations(Kab rov tav thiab ntsug) ntawm ib qho kev hloov kho kho qhov muag, tso cai tag nrho kev rov qab ntawm lub teeb liabCov ntaub ntawv, thiab cov ntaub ntawv qhia txog cov polarization{{0 {}} Qhov no yog qhov tseem ceeb rauPolarization-multiplexedKev hloov kho siab ceev cov lus qhia tawm xws liDP-QINTK(Dual-Polarization Quadrutate theem hloov pauv keying) thiabDP -16 qab teb.
Dab tsi yog aKev Rov Ua Si Polarization Polarucation?
Nyob rau hauv kev sib koom ua ke, lub teeb liab kho qhov muag yogsib xyaw nrog cov oscillator hauv zos (lo)nyob rau hauv coherent optical hybrid los rho theem thiab cov ntaub ntawv amplitude .
A Polarization Txhawj Hlawv Splitter (PBS)yog siv los faib cov teeb liab cov tswv yim ua ob hom orthogonal polarization Cheebtsam.
Txhua pab pawg polarization yog kuaj tauBalanced photodesthiabI / q demodulators, muab cov khoom siv hluav taws xob: Kuvx, Qx, Iy, Qy(hauv-theem thiab quatrrinature cov cim rau x thiab y polarizations) .
Qhov no ua tiav tiavKev Tsim Kho Dua Tshiabntawm lub cev kho qhov muag .
Cov Nta Tseem Ceeb
| Yam zoo | Kev piav txog |
|---|---|
| Kev Siv Ntau Hom Kev Loj Hlob | Ib txhij txais tos ntawm ob x thiab y polarizations |
| Kev Sib Koom Tes Nrhiav Kom Tau | Rov qab muab ob theem thiab amplitude |
| I / q demodulation | Muab rho tawm hauv-theem thiab cov plaub fab |
| Kev Ntsuas Xyuas Qhov Muag | Tsawg-suab nrov nrhiav kom txhua polarization |
| High bandwidth | Txhawb cov ntaub ntawv cov nqi ntau dua lossis sib npaug rau 100 Gbps |
| C-Band ua haujlwm | Cov NTAU YAM: 1525-1565 NM |
| Daim Ntawv Qhia Txog | Muaj nyob rau hauv compact modules (e . g .}, npauj npaim, pluggent) |
Cov Ntawv Thov
| Daim ntawv thov | Kev piav txog |
|---|---|
| Ntev siv kho qhov muag saib xyuas | Ua kom muaj peev xwm muaj peev xwm ntau, ntev-nrug fiber ntau |
| Metro Networks | Kev txais tos sib raug zoo hauv nroog loj-nrawm nrawm |
| Cov ntaub ntawv nruab nrab kev sib txuas tes | Txhawb 100g, 200g, 400g thiab dhau |
| Ntsuas & Kev Ntsuas | Kev Tshawb Xyuas Teeb Liab hauv R & D thiab Network DecogoStics |
Qhov Zoo
Txhawb polarization multiplexing, doubling spectral efficiency .
Pab kom txhijCov Qauv Qauv Qauv(e {{. g {}}}}}}}, 16qam, 16qam, 64qam) {4 {4}
Siab rhiabvim yog sib koom ua ke thiab kuaj pom kom zoo .
Ua kom muaj zog rau polarization hloovNyob rau hauv cov fiber txuas .
Kev txwv
Ntau duacomplex thiab kimdua li kev pom zoo kom tau txais cov nyiaj tau txais .
Yuav tsum tauLub zos ruaj khov oscillatorlaser .
Yuav Xav Tauhaib dsp(Cov teeb liab digital ua) backend kom rov qab cov ntaub ntawv .
Lub ntsiab
| Chaw ua uas tsis tau haus | Tus nqi / Tawm tswv yim |
|---|---|
| Nws yog dab tsi | Coherent tau txais uas kuaj xyuas ob polarizations |
| Kev Txhawb Polarization | Dual (x thiab y axes ntawm PBS) |
| Tawm Tsam | Ix, Qx, Iy, Qy |
| Siv nyob rau hauv | DP-QPSK, DP {{-16 qab teb, ntev-tsheb, siab-ceev kho qhov muag |