Modulator-ka eexda MZM oo aad u saraysa
Muuqaal
• Xakamaynta korantada eexda ee ugu sarreysa/Null/Q+/Q-
• Xakamaynta danab eexda ee barta aan sabab lahayn
• Xakamaynta saxda ah ee saxda ah: 50dB saamiga ugu badan ee baabi'inta habka Null;
± 0.5◦ saxsanaanta Q+ iyo qaababka Q-
• Balaadh yar oo qotodheer:
0.1% Vπ ee qaabka NULL iyo qaabka PEAK
2% Vπ ee qaabka Q+ iyo qaabka Q−
• Degganaanshiyo sare: oo leh dhaqangelin buuxda oo dhijitaal ah
• Muuqaalka hoose: 40mm(W) × 30mm(D) × 10mm(H)
• Si fudud loo isticmaali karo: Hawlgalka gacanta oo leh jumper yar;
Hawlaha OEM dabacsan iyada oo loo marayo MCU UART2
Laba qaab oo kala duwan si ay u bixiyaan danab eex ah: a.Automatic eexda xakamaynta
b. Isticmaalaha ku qeexan danab eexda
Codsiga
LiNbO3 iyo modulators kale ee MZ
• Digital NRZ, RZ
Codsiyada garaaca wadnaha
• Nidaamka kala firdhinta Brillouin iyo dareemayaasha kale ee indhaha
• gudbiyaha CATV
Waxqabadka
Jaantuska 1. Cadaadiska side
Jaantuska 2. Jiilka garaaca wadnaha
Jaantuska 3. Modulator awood ugu badan
Jaantuska 4. Modulator awooda ugu yar
Saamiga dabar goynta ugu badan ee DC
Tijaabadan, wax calaamado RF ah laguma dabaqin nidaamka. Dabar goynta DC ee saafiga ah ayaa la qiyaasay.
1. Jaantuska 5 wuxuu muujinayaa awoodda indhaha ee wax soo saarka modulator-ka, marka modulator-ka la xakameeyo barta ugu sarreysa. Waxay ku tusinaysaa 3.71dBm jaantuska.
2. Jaantuska 6 waxa uu tusinayaa awoodda indhaha ee wax-soo-saarka modulator-ka, marka modulator-ka laga xukumo barta Null. Waxay ku tusinaysaa -46.73dBm jaantuska. Tijaabada dhabta ah, qiimaha ayaa ku kala duwan -47dBm; iyo -46.73 waa qiimo deggan.
3. Sidaa darteed, saamiga dabar goynta DC ee deggan ee lagu qiyaasay waa 50.4dB.
Shuruudaha saamiga dabar-goynta sare
1. Modulator system waa inuu lahaadaa dabargoyn sare. Sifada modulatorka nidaamka ayaa go'aamisa saamiga ugu badan ee baabi'inta la gaari karo.
2. Polarization of modulator light input waa in la daryeelaa. Modulators waxay u nugul yihiin kala soocida Kala soocida saxda ah waxay wanaajin kartaa saamiga dabar goynta in ka badan 10dB. Tijaabada shaybaadhka, inta badan waxa loo baahan yahay kontaroolaha kala soocida.
3. Xakamaynta eexda saxda ah. Tijaabadeena saamiga baabi'inta DC, saamiga baabi'inta 50.4dB waa la gaadhay. Halka xaashida xogta wax-soo-saarka modulator-ku ay liis garayso kaliya 40dB. Sababta hagaajintan ayaa ah in modulators qaarkood ay si degdeg ah u socdaan. Rofea R-BC-Xiriyaasha eexda kasto waxay cusboonaysiiyaan tamarta eexda 1 ilbiriqsi kasta si loo xaqiijiyo jawaabta degdega ah.
Tilmaamaha
| Halbeegga | Min | Nooca | Max | Unug | Shuruudaha |
| Waxqabadka Xakamaynta | |||||
| Saamiga dabar goynta | MER 1 | 50 | dB | ||
| CSO2 | -55 | -65 | -70 | dBc | Baaxadda dhererka: 2% Vπ |
| Waqtiga xasilinta | 4 | s | Qodobbada raadraaca: Nul & Ugu sarreysa | ||
| 10 | Qodobbada raadraaca: Q+ & Q- | ||||
| Koronto | |||||
| danab koronto togan | +14.5 | +15 | +15.5 | V | |
| Awoodda hadda jirta | 20 | 30 | mA | ||
| danab koronto taban | -15.5 | -15 | -14.5 | V | |
| Quwadda taban | 2 | 4 | mA | ||
| Kala duwanaanshaha danabka soo baxay | -9.57 | +9.85 | V | ||
| Saxnaanta danab soo-saarka | 346 | µV | |||
| Soo noqnoqoshada kala durugsan | 999.95 | 1000 | 1000.05 | Hz | Nooca: 1kHz dither signal |
| Baaxadda weyn | 0.1% Vπ | V | Qodobbada raadraaca: Nul & Ugu sarreysa | ||
| 2% Vπ | Qodobbada raadraaca: Q+ & Q- | ||||
| Muuqaal | |||||
| Input awoodda indhaha3 | -30 | -5 | dBm | ||
| Hirarka hirarka dhererka | 780 | 2000 | nm | ||
1. MER waxaa loola jeedaa Modulator Extinction Ratio. Saamiga dabar goynta la gaarey waa sida caadiga ah saamiga baabi'inta modulator-ka ee lagu qeexay xaashida xogta modulator-ka.
2. CSO waxa ay tilmaamaysaa nidaam labaad oo isku dhafan. Si loo cabbiro CSO si sax ah, tayada toosan ee calaamada RF, modulators iyo aqbaleyaasha waa in la hubiyaa. Intaa waxaa dheer, akhrinta nidaamka CSO way kala duwanaan kartaa marka ay ku socoto soo noqnoqoshada RF ee kala duwan.
3. Fadlan la soco in galinta awooda indhaha aanu u dhigmin awooda indhaha ee barta eexda la doortay. Waxay tilmaamaysaa awoodda indhaha ee ugu badan ee modulator-ku u dhoofin karo kantaroolaha marka korantada eexdu u dhexayso -Vπ ilaa +Vπ .
Interface User
Sawirka5. Golaha
| Kooxda | Hawlgalka | Sharaxaad |
| Photodiode 1 | PD: Ku xidh MZM photodiode's Cathode | Bixi jawaab celin sawir leh |
| GND: Ku xidh MZM photodiode's Anode | ||
| Awood | Isha tamarta ee xakamaynta eexda | V-: isku xira korantada taban |
| V+: wuxuu isku xiraa korantada togan | ||
| Baaritaanka dhexe: wuxuu isku xiraa korantada dhulka | ||
| Dib u dajin | Geli jumper oo soo bixi 1 ilbiriqsi ka dib | Dib u dajin maamulaha |
| Habka Xulashada | Geli ama la soo bixi boodboodka | ma jiro jumper: Qaabka null; oo leh jumper: qaabka Quad |
| Polar Select2 | Geli ama la soo bixi boodboodka | ma boodi: Polar Positive; oo leh jumper: Polar Negative |
| Eexda Voltage | Ku xidh dekedda danab eexda ee MZM | OUT iyo GND waxay bixiyaan danab eex ah modulatorka |
| LED | Si joogto ah u daaran | Ka shaqaynta xaalad xasiloon |
| Dab-damis ama off-0.2s kasta | Hagaajinta xogta iyo raadinta barta xakamaynta | |
| Dab-damis ama bannaan-bax 1s kasta | Awoodda aragga wax-soo-gelinta aad bay u liidataa | |
| Dab-damis ama bannaan-bax 3diis kasta | Awoodda aragga wax-soo-gelinta aad bay u xoog badan tahay | |
| UART | Ku shaqee kontaroolaha UART | 3.3: 3.3V danab tixraac ah |
| GND: Dhulka | ||
| RX: Qaadashada kontaroolaha | ||
| TX: Gudbinta xakamaynta | ||
| Xakamaynta Xulashada | Geli ama la soo bixi boodboodka | majiro boodbood: xakamaynta boodboodka;oo leh jumper: xakamaynta UART |
1. Qaar ka mid ah modulators MZ waxay leeyihiin sawir-qaadaha gudaha. Habaynta kontaroolaha waa in la doortaa inta u dhaxaysa isticmaalka photodiode kantaroolaha ama isticmaalka modulator's photodiode gudaha ah. Waxaa lagu talinayaa in la isticmaalo kontoroolka photodiode ee tijaabooyinka shaybaarka laba sababood dartood. Marka hore, kontaroolaha photodiode ayaa xaqiijiyay tayada. Marka labaad, way fududahay in la hagaajiyo xoogga iftiinka gelinta. Fiiro gaar ah: Haddii aad isticmaalayso modulator's photodiode gudaha ah, fadlan hubi in hadda wax soo saarka photodiode uu si adag ula siman yahay awoodda gelinta.
2. Pin Polar waxaa loo isticmaalaa in lagu beddelo barta koontaroolka ee u dhexeeya Peak iyo Nul ee habka kontoroolka null (waxaa go'aamiyay qaabka Select pin) ama Quad
iyo Quad- in Qaabka kantaroolka Quad. Haddii jumper of polar pin aan la gelin, barta koontaroolku waxay noqon doontaa Null mode null ama Quad+ ee qaabka Quad. Baaxadda nidaamka RF wuxuu sidoo kale saameyn doonaa barta kantaroolka. Marka aysan jirin calaamadda RF ama baaxadda calaamadda RF ay yar tahay, koontarooluhu wuxuu awoodaa inuu xiro goobta shaqada si uu u saxo barta sida ay doorteen MS iyo PLR jumper. Marka baaxadda calaamadda RF ay dhaafto xad gaar ah, cirifka nidaamka waa la beddeli doonaa, kiiskan, madaxa PLR waa inuu noqdaa mid ka soo horjeeda, ie jumper waa in la geliyo haddii aan la gelin ama la soo bixin haddii la geliyo.
Codsiga caadiga ah
Xakameeyaha waa fududahay in la isticmaalo.
Tallaabada 1. Ku xidh 1% dekedda lammaanaha iyo sawir-qaadaha kantaroolaha.
Tallaabada 2. Ku xidh wax soo saarka korantada eexda ee kontaroolaha (iyada oo loo marayo SMA ama 2.54mm 2-pin header) deked eexda modulator-ka.
Tallaabada 3. Sii kontaroolaha leh +15V iyo -15V DC danab.
Tallaabada 4. Dib u deji koontaroolaha oo wuxuu bilaabi doonaa inuu shaqeeyo.
FIIRO GAAR AH. Fadlan hubi in signalka RF ee nidaamka oo dhan uu shido ka hor inta aanad dib u dejin kontaroolaha.
Rofea Optoelectronics waxay bixisaa khadka wax soo saarka ee modulators Electro-optic, modulators wajiga, modulator xoojinta, sawirqaadayaasha, ilaha iftiinka laser, DFB lasers, amplifiers indhaha, EDFA, laser SLD, modulation QPSK, laser Pulse, Light detector, sawir-qaade dheellitiran, darawalka laser. , Fiber optic amplifier, Mitirka awoodda indhaha, Laser Broadband, Laser Tunable, indhaha, Diode darawalka Laser, Fiber cod-weyni. Waxaan sidoo kale siinaa wax-bedelayaal badan oo gaar ah oo loogu talagalay habeynta, sida 1*4 modulators wejiga array, Vpi aadka u hooseeya, iyo modulators saamiga baabi'inta aadka u sarreeya, oo inta badan lagu isticmaalo jaamacadaha iyo machadyada.
Waxaan rajeyneynaa in alaabtayadu ay ku caawin doonaan adiga iyo cilmi-baaristaada.
