Mai Kula da Bias Mai Sauƙi Mai Tsayi Mai Sauƙi Mai Sauƙi Mai Kula da Bias Mai Sauƙi ...
Fasali
• Tsarin sarrafa ƙarfin lantarki na bias akan Peak/Null/Q+/Q−
• Ikon sarrafa ƙarfin lantarki na son rai akan ma'aunin da ba a saba ba
• Mahimmancin iko: Matsakaicin karewa na 50dB akan yanayin Null;
Daidaito ±0.5◦ akan yanayin Q+ da Q−
• Ƙarancin girman diter:
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 siffofi: 40mm(W) × 30mm(D) × 10mm(H)
• Sauƙin amfani: Yin amfani da hannu tare da ƙaramin jumper;
Ayyukan OEM masu sassauƙa ta hanyar MCU UART2
• Hanyoyi biyu daban-daban don samar da ƙarfin lantarki na bias: a. Sarrafa bias ta atomatik
b. Ƙarfin wutar lantarki mai nuna son kai wanda mai amfani ya ayyana
Aikace-aikace
• LiNbO3 da sauran masu gyaran MZ
• NRZ na Dijital, RZ
• Aikace-aikacen bugun jini
• Tsarin watsawa na Brillouin da sauran na'urori masu auna gani
• Mai watsa CATV
Aiki
Hoto na 1. Matsewar Mai Jigilar Kaya
Hoto na 2. Samar da bugun jini
Hoto na 3. Matsakaicin ƙarfin Modulator
Hoto na 4. Ƙarfin wutar lantarki mafi ƙaranci na modulator
Matsakaicin ƙarewar DC na Maxim
A cikin wannan gwajin, ba a yi amfani da siginar RF a tsarin ba. An auna ƙarfin DC mai tsabta.
1. Hoto na 5 yana nuna ƙarfin gani na fitowar modulator, lokacin da aka sarrafa modulator a wurin kololuwa. Yana nuna 3.71dBm a cikin zane.
2. Hoto na 6 yana nuna ƙarfin gani na fitowar modulator, lokacin da aka sarrafa modulator a wurin Null. Yana nuna -46.73dBm a cikin zane. A cikin gwaji na gaske, ƙimar ta bambanta a kusa da -47dBm; kuma -46.73 ƙimar da ta dace ce.
3. Saboda haka, daidaitaccen rabon ƙarewar DC da aka auna shine 50.4dB.
Bukatun don babban rabon ƙarewa
1. Mai daidaita tsarin dole ne ya kasance yana da babban rabon ƙarewa. Halayen mai daidaita tsarin yana yanke shawarar matsakaicin rabon ƙarewa da za a iya cimmawa.
2. Za a kula da rabuwar hasken shigarwar modulator. Masu daidaitawa suna da saurin rabuwar. Daidaitaccen rabuwar na iya inganta rabon ɓacewa sama da 10dB. A cikin gwaje-gwajen dakin gwaje-gwaje, yawanci ana buƙatar mai sarrafa rabuwar.
3. Masu kula da bias masu kyau. A cikin gwajinmu na rabon karewa na DC, an cimma rabon karewa na 50.4dB. Duk da cewa takardar bayanai ta masana'antar mai gyara ta lissafa 40dB kawai. Dalilin wannan ci gaban shine cewa wasu masu gyara suna tafiya da sauri sosai. Masu kula da bias na Rofea R-BC-ANY suna sabunta ƙarfin bias a kowane daƙiƙa 1 don tabbatar da amsawar hanya cikin sauri.
Bayani dalla-dalla
| Sigogi | Minti | Nau'i | Max | Naúrar | Yanayi |
| Aikin Sarrafawa | |||||
| Rabon ƙarewa | MER 1 | 50 | dB | ||
| CSO2 | −55 | −65 | −70 | dBc | Girman Dither: 2%Vπ |
| Lokacin daidaitawa | 4 | s | Wuraren bin diddigi: Babu komai & Kololuwa | ||
| 10 | Wuraren Bin Diddigi: Q+ da Q- | ||||
| Lantarki | |||||
| Ƙarfin wutar lantarki mai kyau | +14.5 | +15 | +15.5 | V | |
| Wutar lantarki mai kyau | 20 | 30 | mA | ||
| Ƙarfin wutar lantarki mara kyau | -15.5 | -15 | -14.5 | V | |
| Wutar lantarki mara kyau | 2 | 4 | mA | ||
| Tsarin ƙarfin lantarki na fitarwa | -9.57 | +9.85 | V | ||
| Daidaiton ƙarfin lantarki na fitarwa | 346 | µV | |||
| Mitar Dither | 999.95 | 1000 | 1000.05 | Hz | Sigar: Siginar dither 1kHz |
| Girman Dither | 0.1%Vπ | V | Wuraren bin diddigi: Babu komai & Kololuwa | ||
| 2%Vπ | Wuraren Bin Diddigi: Q+ da Q- | ||||
| Na gani | |||||
| Ikon gani na shigarwa3 | -30 | -5 | dBm | ||
| Tsawon shigarwa | 780 | 2000 | nm | ||
1. MER tana nufin Ratio na Ƙarewa na Modulator. Ratio na ƙarewa da aka samu yawanci shine rabon ƙarewa na modulator da aka ƙayyade a cikin takardar bayanai na modulator.
2. CSO yana nufin tsari na biyu mai haɗaka. Domin auna CSO daidai, dole ne a tabbatar da ingancin layi na siginar RF, masu daidaita sauti da masu karɓa. Bugu da ƙari, tsarin karatun CSO na iya bambanta lokacin da yake gudana a mitoci daban-daban na RF.
3. A lura cewa ƙarfin gani na shigarwa bai yi daidai da ƙarfin gani ba a wurin da aka zaɓa na bias. Yana nufin matsakaicin ƙarfin gani da mai sarrafawa zai iya fitarwa zuwa ga mai sarrafawa lokacin da ƙarfin bias ya kama daga −Vπ zuwa +Vπ.
Tsarin Mai Amfani
Hoto na 5. Haɗawa
| Rukuni | Aiki | Bayani |
| Photodiode 1 | PD: Haɗa Cathode na MZM photodiode | Bayar da ra'ayoyin hoto na yanzu |
| GND: Haɗa Anode na MZM photodiode | ||
| Ƙarfi | Tushen wutar lantarki don mai sarrafa son rai | V-: yana haɗa na'urar lantarki mara kyau |
| V+: yana haɗa na'urar lantarki mai kyau | ||
| Binciken tsakiya: yana haɗa na'urar lantarki ta ƙasa | ||
| Sake saitawa | Saka jumper sannan ka cire bayan daƙiƙa 1 | Sake saita mai sarrafawa |
| Zaɓi Yanayi | Saka ko cire jumper ɗin | babu jumper: Yanayin mara kyau; tare da jumper: Yanayin Quad |
| Zaɓin Polar2 | Saka ko cire jumper ɗin | babu tsalle: Positive Polar; tare da tsalle: Negative Polar |
| Ƙarfin wutar lantarki | Haɗa da tashar wutar lantarki ta MZM bias | OUT da GND suna ba da ƙarfin lantarki na bias don modulator |
| LED | Kullum a kan | Aiki a ƙarƙashin yanayin kwanciyar hankali |
| Kunnawa ko kashewa a kowane 0.2s | Sarrafa bayanai da kuma neman wurin sarrafawa | |
| Kunnawa ko kashewa a kowane 1s | Ikon shigarwa na gani yana da rauni sosai | |
| Kunnawa ko kashewa a kowane sa'o'i 3 | Ikon gani na shigarwa yana da ƙarfi sosai | |
| UART | Gudanar da na'urar ta hanyar UART | 3.3: Ƙarfin wutar lantarki na 3.3V |
| GND: Ƙasa | ||
| RX: Karɓar mai sarrafawa | ||
| TX: Watsawa na mai sarrafawa | ||
| Zaɓin Sarrafa | Saka ko cire jumper ɗin | babu tsalle: sarrafa tsalle; tare da tsalle: sarrafa UART |
1. Wasu masu gyaran MZ suna da na'urorin daukar hoto na ciki. Ya kamata a zaɓi saitin mai sarrafawa tsakanin amfani da na'urar daukar hoto na mai sarrafawa ko amfani da na'urar daukar hoto na ciki ta mai modulator. Ana ba da shawarar amfani da na'urar daukar hoto na mai sarrafawa don gwaje-gwajen Lab saboda dalilai biyu. Da farko, na'urar daukar hoto na mai sarrafawa ta tabbatar da inganci. Na biyu, yana da sauƙin daidaita hasken shigarwa. Lura: Idan ana amfani da na'urar daukar hoto na ciki ta mai modulator, don Allah a tabbatar cewa fitowar hasken photodiode ya yi daidai da ƙarfin shigarwa.
2. Ana amfani da fil ɗin polar don canza wurin sarrafawa tsakanin Peak da Null a cikin yanayin sarrafawa na Null (wanda aka ƙaddara ta hanyar Zaɓin Yanayin) ko Quad+
da kuma yanayin sarrafawa na Quad-in Quad. Idan ba a saka jumper na polar fil ba, wurin sarrafawa zai zama Null a yanayin Null 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 wurin da ya dace kamar yadda aka zaɓa ta hanyar jumper MS da PLR. Lokacin da girman siginar RF ya wuce wani matakin, za a canza polar na tsarin, a wannan yanayin, kanun PLR ya kamata ya kasance a cikin yanayin akasin haka, watau ya kamata a saka jumper idan ba a saka shi ba ko kuma a cire shi idan an saka shi.
Aikace-aikacen da Aka saba
Mai sarrafawa yana da sauƙin amfani.
Mataki na 1. Haɗa tashar 1% na mahaɗin zuwa ga photodiode na mai sarrafawa.
Mataki na 2. Haɗa fitowar ƙarfin lantarki na bias na mai sarrafawa (ta hanyar SMA ko kanun mai pin 2.54mm 2) zuwa tashar bias na mai daidaitawa.
Mataki na 3. Samar da na'urar sarrafawa mai ƙarfin wutar lantarki na +15V da -15V DC.
Mataki na 4. Sake saita na'urar sarrafawa kuma zai fara aiki.
LURA. Da fatan za a tabbatar cewa siginar RF ta dukkan tsarin tana kunne kafin a sake saita mai sarrafawa.
Rofea Optoelectronics tana ba da layin samfuran na'urorin lantarki na lantarki na kasuwanci, masu daidaita yanayin aiki, masu daidaita yanayin aiki, masu gano haske, tushen hasken Laser, masu auna hasken DFB, masu ƙara haske na gani, EDFA, laser SLD, tsarin QPSK, na'urar gano haske, na'urar gano haske mai daidaitawa, mai auna hasken Laser, mai ƙara haske na fiber, na'urar auna wutar lantarki ta Optical, na'urar auna wutar lantarki ta Optical, na'urar gano haske ta Broadband, na'urar gano haske ta Optical, na'urar gano haske ta Optical, na'urar gano haske ta Laser, na'urar gano haske ta Laser, na'urar gano haske ta Laser, na'urar gano haske ta Laser, na'urar gano haske ta Laser, na'urar gano haske ta Laser, na'urar gano haske ta Laser, na'urar gano haske ta Laser, na'urar auna haske ta Laser, na'urar auna haske ta Laser, na'urar auna haske ta fiber. Muna kuma samar da na'urori masu auna haske da yawa don keɓancewa, kamar na'urorin auna haske na 1*4, na'urorin auna haske na Vpi masu ƙarancin ƙarfi, da na'urorin auna haske na ultra-high, waɗanda galibi ana amfani da su a jami'o'i da cibiyoyi.
Da fatan kayayyakinmu za su taimaka muku da kuma bincikenku.
