Xakamaynta MZM ee Ultra High Precision Controller Bias Controller Toos ah
Muuqaalka
• Xakamaynta danabka ee kala-goysyada ee Peak/Null/Q+/Q−
• Xakamaynta danabka eexashada ee ku taal barta aan kala sooca lahayn
• Xakamaynta aadka u saxsan: saamiga ugu badan ee dabar-goynta 50dB ee qaabka Null;
±0.5◦ saxnaanta qaababka Q+ iyo Q−
• Ballaca yar ee loo yaqaan 'diter':
0.1% Vπ oo ku jira qaabka NULL iyo qaabka PEAK
2% Vπ qaabka Q+ iyo qaabka Q−
• Xasillooni sare: oo leh hirgelin dhijitaal ah oo dhammaystiran
• Muuqaal hooseeya: 40mm(B) × 30mm(D) × 10mm(H)
• Si fudud loo isticmaali karo: Hawlgalka gacanta oo leh jumper yar;
Hawlgallada OEM ee dabacsan iyada oo loo marayo MCU UART2
• Laba qaab oo kala duwan si loo bixiyo danab eex ah: a. Xakamaynta eexashada otomaatiga ah
b. Danabka eexda ee uu qeexay isticmaaluhu
Codsiga
• LiNbO3 iyo modulators kale oo MZ ah
• NRZ Dijital ah, RZ
• Codsiyada garaaca wadnaha
• Nidaamka kala firdhinta Brillouin iyo dareemayaasha kale ee indhaha
• Gudbiye CATV
Bandhigga
Jaantuska 1. Xakamaynta Side-qaadaha
Jaantuska 2. Soo saarista garaaca wadnaha
Jaantuska 3. Awoodda ugu badan ee modulator-ka
Jaantuska 4. Awoodda ugu yar ee modulator-ka
Saamiga baabi'inta DC ee ugu sarreeya
Tijaabadan, wax calaamado RF ah laguma dabaqin nidaamka. Waxaa la cabiray DC extinciton saafi ah.
1. Jaantuska 5aad wuxuu muujinayaa awoodda indhaha ee wax soo saarka modulator-ka, marka modulator-ku uu ku shaqeeyo meesha ugu sarreysa. Waxay ku tusaysaa jaantuska 3.71dBm.
2. Jaantuska 6aad wuxuu muujinayaa awoodda indhaha ee wax soo saarka modulator-ka, marka modulator-ku uu ku shaqeeyo barta Null. Waxay ku tusaysaa -46.73dBm jaantuska. Tijaabada dhabta ah, qiimuhu wuu kala duwan yahay qiyaastii -47dBm; iyo -46.73 waa qiime deggan.
3. Sidaa darteed, saamiga dabar-goynta DC ee deggan ee la cabbiray waa 50.4dB.
Shuruudaha saamiga dabar-goynta sare
1. Qalabka nidaamku waa inuu lahaadaa saami dabar go'an oo sare. Astaamaha qalabka nidaamku wuxuu go'aamiyaa saamiga dabar go'an ee ugu badan ee la gaari karo.
2. Kala-soocidda iftiinka gelinta modulator-ka waa in la daryeelaa. Kala-soocidda waxay u nugul yihiin kala-soocidda. Kala-soocidda saxda ah waxay hagaajin kartaa saamiga baabi'inta marka loo eego 10dB. Tijaabooyinka shaybaarka, badanaa waxaa loo baahan yahay kontaroole kala-soocidda.
3. Xakameeyayaasha eexda ee saxda ah. Tijaabadayada saamiga dabar-goynta DC, saamiga dabar-goynta 50.4dB ayaa la gaaray. Iyadoo xaashida xogta ee soosaarka modulator-ka ay liis gareyso 40dB oo keliya. Sababta horumarintan ayaa ah in qaar ka mid ah modulators-ku ay si dhakhso ah u socdaan. Xakamaynta eexda ee Rofea R-BC-ANY waxay cusbooneysiisaa danabka eexda 1 ilbiriqsi kasta si loo hubiyo jawaab degdeg ah oo raad ah.
Tilmaamaha
| Halbeegga | Ugu yaraan | Nooca | Ugu badnaan | Cutubka | Xaaladaha |
| Waxqabadka Xakamaynta | |||||
| Saamiga dabar-goynta | MER 1 | 50 | dB | ||
| CSO2 | −55 | −65 | −70 | dBc | Ballaca cabbirka: 2% Vπ |
| Waqtiga xasilinta | 4 | s | Meelaha la raacayo: Null & Peak | ||
| 10 | Qodobbada Raadinta: Q+ & Q- | ||||
| Koronto | |||||
| Danab awood togan | +14.5 | +15 | +15.5 | V | |
| Koronto togan oo hadda jirta | 20 | 30 | mA | ||
| Danab awood taban | -15.5 | -15 | -14.5 | V | |
| Koronto taban oo joogto ah | 2 | 4 | mA | ||
| Kala duwanaanshaha danab soo saarista | -9.57 | +9.85 | V | ||
| Saxnaanta danab soo saarista | 346 | µV | |||
| Soo noqnoqoshada kala-goysyada | 999.95 | 1000 | 1000.05 | Hz | Nooca: 1kHz calaamadda dither |
| Ballaca Dheriga | 0.1%Vπ | V | Meelaha la raacayo: Null & Peak | ||
| 2%Vπ | Qodobbada Raadinta: Q+ & Q- | ||||
| Aragti ahaan | |||||
| Awoodda indhaha ee la geliyo3 | -30 | -5 | dBm | ||
| Mowjadaha gelinta | 780 | 2000 | nm | ||
1. MER waxay tilmaamaysaa Saamiga Baabi'inta Modulator-ka. Saamiga baaba'a ee la gaaray badanaa waa saamiga baaba'a ee modulator-ka lagu qeexay xaashida xogta modulator-ka.
2. CSO waxay tilmaamaysaa nidaamka labaad ee isku dhafan. Si sax ah loogu cabbiro CSO, tayada toosan ee calaamadda RF, modulators-ka iyo qaataha waa in la hubiyaa. Intaa waxaa dheer, akhrinta nidaamka CSO way kala duwanaan kartaa marka ay ku socoto mawjadaha RF ee kala duwan.
3. Fadlan ogow in awoodda indhaha ee la gelinayo aysan la mid ahayn awoodda indhaha ee barta eexda ee la doortay. Waxay tilmaamaysaa awoodda ugu badan ee indhaha ee modulator-ku u dhoofin karo kontoroolka marka danab eexda uu u dhexeeyo −Vπ ilaa +Vπ.
Is-dhexgalka Isticmaalaha
Jaantuska 5aad. Isku-dubaridka
| Koox | Hawlgalka | Sharaxaad |
| Photodiode 1 | PD: Ku xidh Kathode-ka MZM photodiode | Bixi jawaab celin sawir-qaadis ah |
| GND: Ku xidh Anode-ka sawirka MZM | ||
| Awood | Isha korontada ee koontaroolaha eexda | V-: wuxuu isku xiraa elektroodka taban |
| V+: wuxuu isku xiraa elektroodka togan | ||
| Baaritaanka dhexe: wuxuu isku xiraa elektroodka dhulka | ||
| Dib u celi | Geli boodhadhka oo soo saar 1 ilbiriqsi ka dib | Dib u deji kontaroolaha |
| Qaabka Xulasho | Geli ama soo jiid boodhadhka | boodbood la'aan: Habka aan waxba ahayn; oo leh boodbood: Qaabka afargeeska ah |
| Xulashada Polar2 | Geli ama soo jiid boodhadhka | boodbood la'aan: Polar Togan; oo leh boodbood: Polar Togan |
| Danab eex | Ku xidh dekedda danab ee MZM | OUT iyo GND waxay bixiyaan danabyo eex ah oo loogu talagalay modulator-ka |
| LED | Si joogto ah ayuu u socdaa | Ka shaqaynta xaalad deggan |
| Daar ama daar 0.2s kasta | Ka shaqaynta xogta iyo raadinta barta xakamaynta | |
| Shid ama dami 1dii ilbiriqsiba mar | Awoodda indhaha ee la gelinayo aad bay u daciifsan tahay | |
| Daar ama daar 3dii ilbiriqsiba mar | Awoodda indhaha ee la gelinayo aad bay u xoog badan tahay | |
| UART | Ku shaqee koontaroolaha iyada oo loo marayo UART | 3.3: Danabka tixraaca 3.3V |
| GND: Dhulka | ||
| RX: Helitaanka kontaroolaha | ||
| TX: Gudbinta kontaroolaha | ||
| Xulashada Xakamaynta | Geli ama soo jiid boodhadhka | boodbood la'aan: xakamaynta boodboodka; oo leh boodboodka: xakamaynta UART |
1. Qaar ka mid ah modulators-ka MZ waxay leeyihiin photodiodes gudaha ah. Dejinta koontaroolaha waa in la doortaa inta u dhaxaysa isticmaalka photodiode-ka koontaroolaha ama isticmaalka photodiode-ka gudaha modulator-ka. Waxaa lagu talinayaa in loo isticmaalo photodiode-ka koontaroolaha tijaabooyinka Shaybaarka laba sababood awgood. Marka hore, photodiode-ka koontaroolaha wuxuu hubiyay tayada. Marka labaad, way fududahay in la hagaajiyo iftiinka la geliyo. Fiiro gaar ah: Haddii aad isticmaaleyso photodiode-ka gudaha modulator-ka, fadlan hubi in hadda soo saarista photodiode-ku ay si adag ugu egtahay awoodda la gelinayo.
2. Biinka Polar-ka waxaa loo isticmaalaa in lagu beddelo barta xakamaynta inta u dhaxaysa Peak iyo Null ee qaabka xakamaynta Null (oo lagu go'aamiyo Mode Select pin) ama Quad+
iyo qaabka xakamaynta Quad-in. Haddii boodhadhka biinka polar-ka aan la gelin, barta xakamaynta waxay noqon doontaa Null qaabka Null ama Quad+ qaabka Quad. Ballaca nidaamka RF wuxuu sidoo kale saameyn doonaa barta xakamaynta. Marka uusan jirin calaamadda RF ama ballacaadda calaamadda RF ay yar tahay, kontarooluhu wuxuu awood u leeyahay inuu xiro barta shaqada si uu u saxo sida ay doorteen boodhadhka MS iyo PLR. Marka ballacaadda calaamadda RF ay dhaafto xadka gaarka ah, ballacyada nidaamka waa la beddeli doonaa, kiiskan, madaxa PLR waa inuu ku jiraa xaalad ka soo horjeeda, tusaale ahaan boodhadhka waa in la geliyaa haddii uusan ahayn ama la soo saaray haddii la geliyo.
Codsiga Caadiga ah
Kontaroolaha waa mid fudud in la isticmaalo.
Tallaabada 1. Ku xidh dekedda 1% ee isku xidhka sawirka-diode ee kontaroolaha.
Tallaabada 2. Ku xidh wax soo saarka danabka ee ee xakamaynta (iyada oo loo marayo SMA ama 2.54mm 2-biin madax) dekedda ee modulator-ka.
Tallaabada 3. Sii koontaroole leh danabyo +15V iyo -15V DC ah.
Tallaabada 4. Dib u deji kontaroolaha oo wuu shaqayn doonaa.
FIIRO GAAR AH. Fadlan hubi in calaamadda RF ee nidaamka oo dhan ay shidan tahay ka hor inta aadan dib u dejin koontaroolaha.
Rofea Optoelectronics waxay bixisaa khad wax soo saar oo ah modulators-ka ganacsiga ee Electro-optic, modulators-ka wejiga, modulator-ka xoogga, Photodetectors, ilaha iftiinka Laser-ka, laser-ka DFB, Adlamadaha indhaha, EDFA, laser-ka SLD, modulation-ka QPSK, Laser-ka garaaca wadnaha, qalabka digniinta iftiinka, sawir-qaadaha dheelitiran, darawalka Laser-ka, amplifier-ka Fiber optic, mitirka awoodda indhaha, laser-ka Broadband, laser-ka la hagaajin karo, qalabka ogaanshaha indhaha, darawalka diode-ka Laser-ka, qalabka xoojinta fiber-ka. Waxaan sidoo kale bixinnaa modulators gaar ah oo badan oo loogu talagalay habaynta, sida modulators-ka wejiga 1*4, Vpi-ga aadka u hooseeya, iyo modulators-ka saamiga baabi'inta aadka u sarreeya, oo inta badan loo isticmaalo jaamacadaha iyo machadyada.
Waxaan rajeyneynaa in alaabtayadu ay adiga iyo cilmi-baaristaadaba ku anfici doonaan.
