Ib lub tswvyim ntawm kev siv hluav taws xob tsawg thinning raws li MZM modulator

Ib lub tswvyim ntawm kev siv hluav taws xob tsawg thinning raws liMZM Modulator

Lub zog kho qhov muag tsis tuaj yeem siv los ua lub hauTeeb Tau Qhov TeebTxhawm rau ib txhij emit thiab scan nyob rau hauv cov lus qhia sib txawv, thiab nws kuj tseem tuaj yeem siv los ua ntau lub teeb ci hauv 800g fr4, tshem tawm cov qauv mux. Feem ntau, ntau-wavelength teeb ci yog qhov tsawg zog lossis tsis zoo ntim, thiab muaj ntau yam teeb meem. Cov txheej txheem qhia niaj hnub no muaj ntau yam zoo thiab tuaj yeem raug xa mus rau kev siv. Nws cov ntawv txheej txheem yog qhia raws li hauv qab no: lub siab-zogDfb laserQhov chaw teeb ci yog cw teeb nyob rau hauv lub sij hawm sau thiab ib lub yoj ntev hauv zaus. Tom qab dhau mus dhau ibtus modulatorNrog rau qee qhov kev hloov kho zaus FRF, Coveruam yuav tsim tawm, thiab SONDAND luv yog cov zaus FRF. Tus modulator siv Lnoi modulator nrog ib ntev ntawm 8.2mm, raws li qhia hauv daim duab b. Tom qab ib ntu ntev ntawm high-powerTheem Modulator, cov kev hloov pauv zaus kuj yog FRF, thiab nws theem yuav tsum tau ua qhov crest lossis trough ntawm lub teeb liab RF thiab lub teeb pom kev loj ntawm cov hniav. Lub DC kev tsis ncaj ncees thiab kev sib cais ntawm cov modulator tuaj yeem cuam tshuam rau cov tiaj tus ntawm cov khoom siv kho qhov muag.

Kev ua lej, lub teeb liab tom qab lub teeb teb yog hloov kho los ntawm tus modulator yog:
Nws tuaj yeem pom tau tias cov tso zis kho qhov muag yog qhov ntsuas hluav taws xob tsis sib xws nrog cov khoom siv kho qhov muag tau cuam tshuam nrog lub zog dfb. Los ntawm simulating lub teeb siv kev sib tw dhau los ntawm MZM modulator thiabPM Theem Modulator, thiab tom qab ntawd fft, lub zog kho qhov muag tau faib spectrum tau. Daim duab hauv qab no qhia txog kev sib raug zoo ntawm qhov kho tau ncaj qha thiab modulator DC kev tsis ncaj ncees thiab kev sib cais raws li cov simulation.

Daim duab hauv qab no qhia txog cov duab simulated specrogram nrog MZM kev tsis ncaj ncees DC ntawm 0.4π, uas qhia tau tias nws cov tiaj tiaj yog <5dB.

Cov hauv qab no yog lub pob duab MZM ntawm MZM modulator, LN yog 500nb tuab, qhov etching tob yog 260n, thiab WaveGuide qhov dav yog 1.5um. Lub thickness ntawm kub electrode yog 1.2um. Lub thickness ntawm sab sauv cladding sio2 yog 2um.

Cov hauv qab no yog lub spectrum ntawm kev sim ntawm lub ofc, nrog 13 optically spars hniav thiab tiaj tiaj <2.4dB. Kev Hloov Sij Hawm yog 5GHz, thiab RF fais fab chaw thau khoom hauv MZM thiab PM yog 11.24 DBM thiab 24.96DBM feem ntau. Tus naj npawb ntawm cov hniav ntawm cov kev hloov kho kho qhov muag tau tshaj tawm tuaj yeem nce ntxiv los ntawm kev nce qib PM-RF sib nrug tau nce ntxiv los ntawm kev nce cov zaus ntau zaus. daim duab
Qhov saum toj no yog raws li LNOI cov phiaj xwm, thiab cov hauv qab no yog ua raws li iiiv cov phiaj xwm. Tus qauv daim duab yog raws li hauv qab no: Cov nti sib xyaw DBR laser, MZM Modulator, PM theem modulator, so thiab SSC. Ib qho nti twg tuaj yeem ua tiav cov kev ua tau zoo ntawm cov khoom siv thinning.

Tus smsr ntawm dbr ntawm dbr laser yog 35db, kab dav yog 38mHz, thiab cov kev sib tw yog 9nm.

 

Lub Mzm Modulator yog siv los tsim cov Sabband nrog ntev ntawm 1mm thiab bandwidth ntawm tsuas yog 7ghz @ 3dB. Feem ntau tsawg los ntawm impedance mismatch, kho qhov muag tau mus txog 20db @ -8b bias

Lub SOA ntev yog 500μm, uas yog siv los them tus qauv kho qhov txawv, thiab lub ntsej muag ci ntsa iab yog 62nm @ 3dB @Ma. Qhov kev sib xyaw ua ke SSC ntawm cov zis txhim kho concupling efficiency ntawm nti (coupling efficiency yog 5dB). Qhov kawg tso zis lub zog yog txog -7DBM.

Txhawm rau kom tsim cov hluav taws xob tsis tawg, cov RF Hloov Zuag Peb zaus siv yog 2.6GHz, lub zog yog 24.7DBM, thiab VPI cov qauv yog 5V. Daim duab hauv qab no yog lub resocophobic spectrum nrog 17 photophobic hniav @ 10db thiab snsr siab tshaj 30db.

Cov phiaj xwm yog npaj rau 5g microwave kis, thiab daim duab hauv qab no yog lub teeb ntes los ntawm lub teeb ntes los ntawm lub teeb ntes, uas tuaj yeem tsim kom tau 26G lub cim los ntawm 10 npaug ntawm zaus. Nws tsis tau hais nyob ntawm no.

Hauv cov ntsiab lus, lub zog kho qhov muag tau tsim los ntawm cov txheej txheem no muaj cov sijhawm ruaj khov caij nyoog, muaj lub zog tsis muaj zog, muaj zog sib xyaw, tab sis kuj muaj ntau yam teeb meem. Lub teeb liab RF loaded nyob rau PM yuav tsum tau siv lub zog loj, thiab sijhawm ntau rau kev sib tw, nce txog 50GHz, uas yuav tsum tau loj dua wavelength sij hawm (feem ntau> 10nm) hauv Fr8 system. Txwv siv tsawg, fais fab tiaj tus tseem tsis txaus.


Lub Sijhawm Post: Mar-19-2024