Ultra High Precision MZM modulator Bias Controller Atomatik Bias Controller
Siffar
• Kula da wutar lantarki na son rai akan Peak / Null / Q +/Q-
• Kula da wutar lantarki na son rai akan ma'anar sabani
• Madaidaicin madaidaicin iko: 50dB matsakaicin ƙarancin ƙarewa akan Yanayin Null;
± 0.5◦ daidaito akan hanyoyin Q+ da Q-
• Ƙarƙashin girman dither:
0.1% Vπ a yanayin NULL da yanayin PEAK
2% Vπ a yanayin Q+ da yanayin Q-
• Babban kwanciyar hankali: tare da cikakken aiwatar da dijital
• Ƙananan bayanan martaba: 40mm(W) × 30mm(D) × 10mm(H)
• Sauƙi don amfani: Aikin hannu tare da ƙaramin tsalle;
Ayyukan OEM masu sassauƙa ta hanyar MCU UART2
• Hanyoyi daban-daban guda biyu don samar da wutar lantarki na son zuciya: a. sarrafa son zuciya ta atomatik
b. Ƙayyadaddun wutar lantarki mai amfani
Aikace-aikace
• LiNbO3 da sauran masu daidaitawa na MZ
• Digital NRZ, RZ
• Aikace-aikacen bugun jini
• Tsarin watsawar Brillouin da sauran na'urori masu auna firikwensin gani
• Mai watsa CATV
Ayyuka
Hoto 1. Damuwa mai ɗaukar kaya
Hoto 2. Juyin Halitta
Hoto 3. Modulator max iko
Hoto 4. Modulator mafi ƙarancin iko
Matsakaicin lalatawar DC
A cikin wannan gwaji, ba a yi amfani da siginonin RF akan tsarin ba. An auna tsaftataccen extinciton DC.
1. Hoto na 5 yana nuna ikon gani na fitarwa na modulator, lokacin da mai sarrafa na'urar ke sarrafawa a wurin Peak. Yana nuna 3.71dBm a cikin zane.
2. Hoto na 6 yana nuna ikon gani na fitarwa na modulator, lokacin da aka sarrafa na'ura mai kwakwalwa a Null point. Yana nuna -46.73dBm a cikin zane. A cikin gwaji na gaske, ƙimar ta bambanta a kusa da -47dBm; kuma -46.73 yana da tsayayye darajar.
3. Saboda haka, ma'auni na barga DC da aka auna shine 50.4dB.
Abubuwan buƙatu don babban rabo na ɓarna
1. System modulator dole ne ya sami babban rabo na ɓarna. Halayen tsarin modulator ya yanke shawarar iyakar ƙarewar da za a iya samu.
2. Za a kula da hasken shigar da na'ura mai daidaitawa. Modulators suna kula da polarization. Matsakaicin da ya dace zai iya inganta ƙimar bacewa sama da 10dB. A cikin gwaje-gwajen lab, yawanci ana buƙatar mai sarrafa polarization.
3. Masu kula da son zuciya daidai. A cikin gwajin rabonmu na karewa na DC, an cimma rabon bacewar 50.4dB. Yayin da takardar bayanan na'ura mai haɓakawa kawai ke lissafin 40dB. Dalilin wannan haɓakawa shine cewa wasu na'urori masu daidaitawa suna tafiya da sauri. Rofea R-BC-KOWANE masu kula da son zuciya suna sabunta ƙarfin wutar lantarki kowane daƙiƙa 1 don tabbatar da amsawa cikin sauri.
Ƙayyadaddun bayanai
| Siga | Min | Buga | Max | Naúrar | Sharuɗɗa |
| Ayyukan Gudanarwa | |||||
| Ragowar lalacewa | MER 1 | 50 | dB | ||
| CSO2 | -55 | -65 | -70 | dBc | Girman girman: 2% Vπ |
| Lokacin tabbatarwa | 4 | s | Wuraren bin diddigi: Null & Peak | ||
| 10 | Wuraren bin diddigi: Q+ & Q- | ||||
| Lantarki | |||||
| Ingantacciyar wutar lantarki | +14.5 | +15 | +15.5 | V | |
| Ingantacciyar wutar lantarki | 20 | 30 | mA | ||
| Rashin wutar lantarki mara kyau | -15.5 | -15 | -14.5 | V | |
| Rashin ƙarfin halin yanzu | 2 | 4 | mA | ||
| Fitar wutar lantarki | -9.57 | +9.85 | V | ||
| Fitar ƙarfin lantarki daidaici | 346 | µV | |||
| Dither mita | 999.95 | 1000 | 1000.05 | Hz | Sigar: 1kHz dither siginar |
| Dither amplitude | 0.1% Vπ | V | Wuraren bin diddigi: Null & Peak | ||
| 2% Vπ | Wuraren bin diddigi: Q+ & Q- | ||||
| Na gani | |||||
| Input ikon gani3 | -30 | -5 | dBm | ||
| Tsawon igiyoyin shigarwa | 780 | 2000 | nm | ||
1. MER yana nufin Ratio na Ƙarfafa Modulator. Matsakaicin ɓarna da aka samu yawanci shine rabon ɓarna na modulator da aka kayyade a cikin takaddun bayanai na modulator.
2. CSO tana nufin hadadden tsari na biyu. Don auna CSO daidai, za a tabbatar da ingancin siginar RF, masu daidaitawa da masu karɓa. Bugu da kari, tsarin karatun CSO na iya bambanta lokacin da yake gudana a mitocin RF daban-daban.
3. Da fatan za a lura cewa shigar da ikon gani bai dace da ikon gani ba a wurin da aka zaɓa. Yana nufin matsakaicin ƙarfin gani wanda na'ura mai haɓakawa zai iya fitarwa zuwa mai sarrafawa lokacin da ƙarfin wutar lantarki ya bambanta daga -Vπ zuwa +Vπ .
Interface mai amfani
Hoto5. Majalisa
| Rukuni | Aiki | Bayani |
| Photodiode 1 | PD: Haɗa MZM photodiode's Cathode | Bada ra'ayi na hoto na yanzu |
| GND: Haɗa MZM photodiode's Anode | ||
| Ƙarfi | Tushen wuta don mai sarrafa son zuciya | V-: ya haɗu da mummunan lantarki |
| V+: yana haɗa ingantaccen lantarki | ||
| Binciken tsakiya: yana haɗa wutar lantarki ta ƙasa | ||
| Sake saiti | Saka jumper kuma cire bayan 1 seconds | Sake saita mai sarrafawa |
| Zaɓin Yanayin | Saka ko cire mai tsalle | babu jumper: Yanayin mara kyau; tare da jumper: Yanayin Quad |
| Zabi na Polar2 | Saka ko cire mai tsalle | babu tsalle: Polar Polar; tare da jumper: Negative Polar |
| Bias Voltage | Haɗa tare da tashar wutar lantarki na son zuciya ta MZM | OUT da GND suna ba da ƙarfin wutar lantarki don modulator |
| LED | akai-akai akan | Aiki a karkashin barga jihar |
| Kunnawa ko kashewa kowane 0.2s | Gudanar da bayanai da kuma neman wurin sarrafawa | |
| Kunnawa ko kashe-akan kowane 1s | Input Optical Power yayi rauni sosai | |
| Kunnawa ko kashe-a kowane 3s | Ƙarfin gani na shigarwa yana da ƙarfi sosai | |
| UART | Mai sarrafawa ta hanyar UART | 3.3: 3.3V tunani irin ƙarfin lantarki |
| GND: kasa | ||
| RX: Karɓi mai sarrafawa | ||
| TX: watsa mai sarrafawa | ||
| Sarrafa Zaɓi | Saka ko cire mai tsalle | babu mai tsalle: sarrafa tsalle; tare da jumper: sarrafa UART |
1. Wasu masu gyara MZ suna da photodiodes na ciki. Ya kamata a zaɓi saitin mai sarrafawa tsakanin amfani da photodiode mai sarrafawa ko amfani da photodiode na ciki na modulator. Ana ba da shawarar yin amfani da photodiode mai sarrafawa don gwaje-gwajen Lab saboda dalilai biyu. Da fari dai, photodiode mai sarrafawa ya tabbatar da inganci. Abu na biyu, yana da sauƙi don daidaita ƙarfin shigarwar haske. Lura: Idan ana amfani da photodiode na ciki na modulator, da fatan za a tabbatar cewa abin da ake fitarwa na photodiode ya yi daidai da ƙarfin shigarwa.
2. Ana amfani da fil na Polar don canza wurin sarrafawa tsakanin Peak da Null a cikin Yanayin sarrafa Null (wanda aka ƙaddara ta Yanayin Zaɓi fil) ko Quad +
da Quad- a cikin yanayin sarrafa Quad. Idan ba a saka jumper na polar fil ba, wurin sarrafawa zai zama maras kyau a yanayin maras kyau ko Quad+ a yanayin Quad. Girman tsarin RF shima zai shafi wurin sarrafawa. Lokacin da babu siginar RF ko girman siginar RF ƙarami ne, mai sarrafawa zai iya kulle wurin aiki zuwa daidai wurin kamar yadda MS da PLR jumper suka zaɓa. Lokacin da girman siginar siginar RF ya wuce ƙayyadaddun kofa, za a canza polar tsarin, a wannan yanayin, taken PLR ya kamata ya kasance a cikin kishiyar yanayin, watau a saka jumper idan ba a ciki ba ko cire shi idan an saka shi.
Aikace-aikace na yau da kullun
Mai sarrafawa yana da sauƙin amfani.
Mataki na 1. Haɗa tashar jiragen ruwa 1% na ma'aurata zuwa photodiode na mai sarrafawa.
Mataki na 2. Haɗa fitowar ƙarfin wutar lantarki na mai sarrafawa (ta hanyar SMA ko 2.54mm 2-pin header) zuwa tashar jiragen ruwa na modulator.
Mataki na 3. Samar da mai sarrafawa tare da +15V da -15V DC ƙarfin lantarki.
Mataki na 4. Sake saita mai sarrafawa kuma zai fara aiki.
NOTE. Da fatan za a tabbatar da cewa siginar RF na gabaɗayan tsarin yana kunne kafin sake saita mai sarrafawa.
Rofea Optoelectronics yana ba da layin samfurin kasuwanci na masu daidaitawa na Electro-optic, Modulators na lokaci, Intensity Modulator, Photodetectors, Laser haske kafofin, DFB Laser, Optical amplifiers, EDFA, SLD Laser, QPSK modulation, Pulse Laser, Haske mai gano haske, Daidaitaccen hoto, direban Laser , Fiber na gani amplifier, Optical ikon mita, Broadband Laser, Laser mai kunnawa, Mai gano gani, direban Laser diode, Fiber amplifier. Har ila yau, muna ba da wasu na'urori na musamman don keɓancewa, kamar 1 * 4 tsararrun lokaci masu daidaitawa, ultra-low Vpi, da ultra-high extinction rabo modulators, da farko ana amfani da su a jami'o'i da cibiyoyi.
Da fatan samfuranmu za su taimaka muku da bincikenku.
