Isikimu sokuncipha kwemvamisa kwe-Optical Frequency kususelwa ku-Modulator ye-MZM

Isikimu se-Optical Frequency Fighting esekweModulator we-MZM

Ukuhlakazwa imvamisa ye-optical kungasetshenziswa njenge-lidarUmthombo OkhanyayoUkukhipha kanyekanye nokuskena ngezindlela ezihlukile, futhi kungahle kusetshenziswe njengomthombo wokukhanya okukhanyayo we-wavelength we-800g Fr4, uqede ukwakheka kwe-mux. Imvamisa, umthombo wokukhanya okukhanyayo ama-wavelength unamandla aphansi noma awuhlanganisiwe, futhi kunezinkinga eziningi. Uhlelo elethulwa namuhla lunezinzuzo eziningi futhi lungadluliselwa kulolo lubhekiswe. Umdwebo wayo wesakhiwo uboniswa kanjena: amandla aphezuluI-DFB laserUmthombo okhanyayo yi-CW ukukhanya kwesizinda sesikhathi kanye ne-wavelength eyodwa kaningi. Ngemuva kokudlula aimbebulaNgokuqhuma kwemvamisa okuthile kwemvamisa, kuzokwenziwa nge-Sideband, futhi isikhawu se-Sideband i-frf yemvamisa elungisiwe. Isimondi esisebenzisa i-LNOI Modator ngobude be-8.2mm, njengoba kukhonjisiwe kuMfanekiso B. Ngemuva kwesigaba eside samandla aphezuluIsilinganiselo sesigaba, imvamisa yokushintshashintsha futhi i-frf, futhi isigaba sayo kudingeka senze i-crest noma umkhombe wesiginali ye-RF kanye nokukhanya okukhanyayo okuhlobene ne-chirp enkulu, okuholela emazinyweni ezinkulu. I-DC Bias kanye nokujula kwemodyuli ye-modulator kungathinta ukuthopha kokuhlakazwa kwemvamisa kwe-Optical Frequency.

Ngokwezibalo, isiginali ngemuva kokuthi insimu ekhanyayo ilungiswe yi-modulator yile:
Kungabonakala ukuthi insimu ye-Optical Optical ingukuhlakazeka kwemvamisa okuvela imvamisa ye-WRF, kanye nokuqina kwe-Optical Frequency Displity Tooth kuhlobene namandla e-DFB Optical. Ngokulingisa ubukhulu bokukhanya okudlula nge-MZM Modulator futhiIsimondi se-PM Isigaba sesigaba, bese i-FFT, i-Optical Frequency Refect Dispperity Spectrum iyatholakala. Lesi sibalo esilandelayo sibonisa ubudlelwane obuqondile phakathi kokugcwala imvamisa ye-Optical Frequency kanye ne-Modulator DC Bias kanye nokujula kokushintshana ngokususelwa kulokhu kulingisa.

Lesi sibalo esilandelayo sibonisa umdwebo we-spectral owenziwe nge-MZM BIAS DC we-0.6CE

Okulandelayo umdwebo wephakheji we-MZM Modulator, i-LN ingama-500nm aminyene, ukujula kwe-etching kuyinto engu-260NM, kanye nobubanzi be-WaveGuide ngu-1.5um. Ubukhulu be-electrode yegolide ngu-1.2um. Ubukhulu be-Sio2 ephezulu ye-sio2 ingu-2um.

Okulandelayo i-spectrum ye-A Testd Ofc, enamazinyo ayi-13 sparse kanye ne-Flatness <2.4DB. Imvamisa yokushintshashintsha i-5GHz, kanye nokulayishwa kwamandla kwe-RF eMzm ne-PM kuyi-11.24 DBM ne-24.96DBM ngokulandelana. Inani lamazinyo okufika okuvamisile imvamisa lingandiswa ngokuqhubeka nokwandisa amandla we-PM-RF, futhi isikhathi sokuhlakazwa kwemvamisa ye-Optical Ffessipten singandiswa ngokwandisa imvamisa yokumoshintsha. isithombe
Lokhu okungenhla kusekelwe kuhlelo lwe-LNOI, kanti okulandelayo kusekelwe kuhlelo lwe-IIIV. Umdwebo wesakhiwo umi kanjena: I-chip ihlanganisa i-DBR Laser, i-MZM Modulator, i-PM Isigaba sesimo sangemuva, i-SOA ne-SSC. I-chip eyodwa ingathola ukuncipha okuphezulu kokukhanya okuthe xaxa.

I-SMSR ye-DBR Laser ingu-35DB, ububanzi bangempela bungu-38MHz, kanye nebanga lokuhlekisa kungu-9mm.

I-Modulator ye-MZM isetshenziselwa ukukhiqiza i-Sideband ngobude be-1mm ne-bandwidth ye-7GHZ @ 3DB. Ikakhulukazi kukhawulelwe ngokuphazamiseka kwe-invadance, ukulahleka kwe-optical kuze kufike ku-20db @ -8B bias

Ubude be-SOA buyi-500μm, elisetshenziselwa ukunxephezela ukuncipha kokuhlekiswa komehluko okubonakalayo, kanye ne-bandwidth spectral yi-62NM @ 3db @ 9db @ 90ma. I-SSC ehlanganisiwe ekuphumeni ithuthukisa ukusebenza kahle kwe-chip (ukusebenza kahle kokuhlangana kungu-5DB). Amandla okugcina okukhipha kumayelana -7dbm.

Ukuze ukhiqize ukusakazwa imvamisa ye-Optical Frequency, imvamisa yokushintshashintsha kwe-RF esetshenzisiwe yi-2.6GHz, amandla angama-24.7DBM, futhi i-VPI yesigaba sesigaba i-5V. Isibalo esingezansi yi-Photophobic Spectrum ephumela nge-17 photophobic Teeth @ 10db ne-SNSR ephakeme kune-30DB.

Uhlelo luhloselwe ukuhanjiswa kwe-5G Microwave, futhi lesi sibalo esilandelayo yingxenye ye-spectrum etholwe umtshina wokukhanya, ongakhiqiza amasiginali angama-26g amahlandla ayi-10 imvamisa. Akushiwo lapha.

Ngamafuphi, imvamisa ye-optical eyenziwe yile ndlela inesikhashana esithe xaxa, umsindo wesigaba esiphansi, amandla aphezulu kanye nokuhlanganiswa okulula, kepha kunezinkinga ezilula. Isiginali ye-RF elayishwe ku-PM idinga amandla amakhulu, ukusetshenziswa kwamandla amakhulu, kanye nesikhathi sokuvama kukhawulelwe ngamanani wokushintshanisa, kuze kufike ku-50nn) ohlelweni lwe-fr8. Ukusetshenziswa okulinganiselwe, i-Power Flatness ayisenele.