Ultra High Precision MZM modulator Bias Controller Automatic Bias Controller
Feature
• Kev tswj hwm qhov hluav taws xob tsis sib xws ntawm Peak / Null / Q + / Q−
• Kev tswj hwm qhov hluav taws xob tsis sib xws ntawm qhov chaw tsis raws cai
• Kev tswj hwm meej heev: 50dB qhov siab tshaj plaws ntawm qhov tsis muaj zog;
±0.5◦ qhov tseeb ntawm Q+ thiab Q− hom
• Qhov siab qis dither:
0.1% Vπ ntawm NULL hom thiab PEAK hom
2% Vπ ntawm Q+ hom thiab Q− hom
• Kev ruaj khov siab: nrog rau kev siv digital tag nrho
• Qis profile: 40mm (W) × 30mm (D) × 10mm (S)
• Yooj yim siv: Kev ua haujlwm tes nrog mini jumper;
Kev ua haujlwm OEM yooj ywm los ntawm MCU UART2
• Ob hom sib txawv los muab qhov hluav taws xob bias: a. Kev tswj hwm bias tsis siv neeg
b. Tus neeg siv txhais qhov hluav taws xob tsis sib xws
Daim Ntawv Thov
• LiNbO3 thiab lwm yam MZ modulators
• Cov NRZ digital, RZ
• Cov ntawv thov Pulse
• Brillouin scattering system thiab lwm yam optical sensors
• Lub Tshuab Xa Xov Tooj CATV
Kev ua tau zoo
Daim Duab 1. Kev Tswj Tus Neeg Nqa Khoom
Daim Duab 2. Kev Tsim Lub Plawv
Daim Duab 3. Lub zog siab tshaj plaws ntawm lub modulator
Daim Duab 4. Lub zog tsawg kawg nkaus ntawm modulator
Maxim DC qhov sib piv ntawm kev ploj tuag
Hauv qhov kev sim no, tsis muaj cov cim RF tau siv rau hauv lub kaw lus. Kev ntsuas hluav taws xob DC ntshiab tau raug ntsuas.
1. Daim duab 5 qhia txog lub zog kho qhov muag ntawm cov zis modulator, thaum modulator tswj hwm ntawm qhov siab tshaj plaws. Nws qhia 3.71dBm hauv daim duab.
2. Daim duab 6 qhia txog lub zog kho qhov muag ntawm cov zis modulator, thaum modulator tswj hwm ntawm Null point. Nws qhia -46.73dBm hauv daim duab. Hauv kev sim tiag tiag, tus nqi sib txawv nyob ib puag ncig -47dBm; thiab -46.73 yog tus nqi ruaj khov.
3. Yog li ntawd, qhov ruaj khov DC extinction piv ntsuas yog 50.4dB.
Cov kev cai rau qhov sib piv siab ntawm kev ploj tuag
1. Tus modulator system yuav tsum muaj qhov piv txwv siab tshaj plaws ntawm kev ploj mus. Tus yam ntxwv ntawm tus modulator system txiav txim siab qhov piv txwv siab tshaj plaws ntawm kev ploj mus tuaj yeem ua tiav.
2. Yuav tsum tau saib xyuas qhov polarization ntawm lub teeb modulator. Cov modulators rhiab heev rau polarization. Polarization kom raug tuaj yeem txhim kho qhov piv txwv ploj mus ntau dua 10dB. Hauv kev sim hauv chav kuaj, feem ntau xav tau tus tswj polarization.
3. Cov tswj hwm kev tsis ncaj ncees kom zoo. Hauv peb qhov kev sim DC extinction ratio, 50.4dB extinction ratio tau ua tiav. Thaum daim ntawv qhia txog cov khoom siv modulator tsuas yog teev 40dB. Qhov laj thawj ntawm qhov kev txhim kho no yog tias qee cov modulators txav mus sai heev. Rofea R-BC-ANY bias controllers hloov kho qhov bias voltage txhua 1 vib nas this kom ntseeg tau tias muaj kev teb sai.
Cov Lus Qhia Tshwj Xeeb
| Cov Qauv | Tsawg kawg | Hom | Qhov siab tshaj plaws | Chav tsev | Cov xwm txheej |
| Kev Tswj Xyuas Kev Ua Haujlwm | |||||
| Qhov piv ntawm kev ploj tuag | MER 1 | 50 | dB | ||
| CSO2 | −55 | −65 | −70 | dBc | Qhov siab tshaj plaws ntawm qhov sib txawv: 2% Vπ |
| Lub sijhawm ruaj khov | 4 | s | Cov ntsiab lus taug qab: Null & Peak | ||
| 10 | Cov ntsiab lus taug qab: Q+ & Q- | ||||
| Hluav taws xob | |||||
| Lub zog fais fab zoo | +14.5 | +15 | +15.5 | V | |
| Lub zog tam sim no zoo | 20 | 30 | mA | ||
| Lub zog hluav taws xob tsis zoo | -15.5 | -15 | -14.5 | V | |
| Lub zog tsis zoo tam sim no | 2 | 4 | mA | ||
| Qhov hluav taws xob tso zis ntau yam | -9.57 | +9.85 | V | ||
| Qhov tso zis hluav taws xob raug | 346 | µV | |||
| zaus sib txawv | 999.95 | 1000 | 1000.05 | Hz | Version: 1kHz dither teeb liab |
| Dither amplitude | 0.1%Vπ | V | Cov ntsiab lus taug qab: Null & Peak | ||
| 2%Vπ | Cov ntsiab lus taug qab: Q+ & Q- | ||||
| Kev kho qhov muag | |||||
| Lub zog fais fab ntawm lub qhov muag 3 | -30 | -5 | dBm | ||
| Cov nthwv dej nkag | 780 | 2000 xyoo | nm | ||
1. MER yog hais txog Modulator Extinction Ratio. Qhov piv txwv extinction uas tau txais feem ntau yog qhov piv txwv extinction ntawm modulator uas tau teev tseg hauv modulator datasheet.
2. CSO yog hais txog kev sib xyaw ua ke thib ob. Yuav kom ntsuas CSO kom raug, yuav tsum xyuas kom meej tias qhov zoo ntawm RF teeb liab, modulators thiab receivers zoo li qub. Tsis tas li ntawd, qhov kev nyeem ntawv CSO ntawm lub system yuav txawv thaum khiav ntawm ntau zaus RF sib txawv.
3. Thov nco ntsoov tias lub zog optical input tsis sib xws rau lub zog optical ntawm qhov chaw bias xaiv. Nws yog hais txog lub zog optical siab tshaj plaws uas lub modulator tuaj yeem xa mus rau tus maub los thaum lub zog bias ntau ntawm −Vπ txog + Vπ.
Kev Sib Txuas Lus ntawm Tus Neeg Siv
Daim Duab 5. Kev Sib Dhos
| Pawg | Kev Ua Haujlwm | Kev piav qhia |
| Lub teeb duab 1 | PD: Txuas MZM photodiode's Cathode | Muab cov lus taw qhia photocurrent |
| GND: Txuas MZM photodiode's Anode | ||
| Lub zog | Lub zog fais fab rau kev tswj hwm kev tsis sib haum xeeb | V-: txuas cov electrode tsis zoo |
| V+: txuas lub electrode zoo | ||
| Nruab nrab soj ntsuam: txuas lub electrode hauv av | ||
| Pib dua | Ntxig lub jumper thiab rub tawm tom qab 1 vib nas this | Pib dua qhov maub los |
| Xaiv Hom | Ntxig los yog rub tawm lub jumper | tsis muaj jumper: Null hom; nrog jumper: Quad hom |
| Polar Xaiv 2 | Ntxig los yog rub tawm lub jumper | tsis muaj jumper: Positive Polar; nrog jumper: Negative Polar |
| Qhov Voltage Tsis Zoo | Txuas nrog MZM bias voltage port | OUT thiab GND muab cov bias voltages rau modulator |
| LED | Nyob rau tas li | Ua haujlwm nyob rau hauv lub xeev ruaj khov |
| Qhib-tua lossis kaw-rau txhua 0.2 vib nas this | Ua cov ntaub ntawv thiab nrhiav qhov chaw tswj hwm | |
| Qhib-tua lossis kaw-rau txhua 1 vib nas this | Lub zog fais fab ntawm lub tswv yim tsis muaj zog heev | |
| Qhib-tua lossis kaw-rau txhua 3 vib nas this | Lub zog fais fab ntawm lub tswv yim muaj zog heev | |
| UART | Ua haujlwm ntawm tus maub los ntawm UART | 3.3: 3.3V qhov hluav taws xob siv |
| GND: Hauv av | ||
| RX: Txais ntawm tus maub los | ||
| TX: Kev xa ntawm tus maub los | ||
| Kev Xaiv Tswj | Ntxig los yog rub tawm lub jumper | tsis muaj jumper: jumper tswj; nrog jumper: UART tswj |
1. Qee cov MZ modulators muaj cov photodiodes sab hauv. Kev teeb tsa ntawm lub maub los yuav tsum tau xaiv ntawm kev siv lub photodiode ntawm lub maub los lossis siv lub photodiode sab hauv ntawm lub modulator. Nws raug pom zoo kom siv lub photodiode ntawm lub maub los rau kev sim hauv chav kuaj vim ob qho laj thawj. Ua ntej, lub photodiode ntawm lub maub los tau ua kom zoo. Qhov thib ob, nws yooj yim dua los kho qhov ci ntsa iab ntawm lub teeb. Nco ntsoov: Yog tias siv lub photodiode sab hauv ntawm lub modulator, thov xyuas kom tseeb tias qhov tam sim no ntawm lub photodiode yog sib npaug rau lub zog nkag.
2. Tus pin Polar siv los hloov qhov chaw tswj ntawm Peak thiab Null hauv hom tswj Null (txiav txim siab los ntawm Hom Xaiv tus pin) lossis Quad +
thiab Quad- hauv Quad tswj hom. Yog tias jumper ntawm polar pin tsis tau ntxig, qhov chaw tswj yuav yog Null hauv Null hom lossis Quad + hauv Quad hom. Amplitude ntawm RF system kuj tseem yuav cuam tshuam rau qhov chaw tswj. Thaum tsis muaj RF teeb liab lossis RF teeb liab amplitude me me, tus maub los tuaj yeem xauv qhov chaw ua haujlwm kom raug qhov chaw raws li xaiv los ntawm MS thiab PLR jumper. Thaum RF teeb liab amplitude tshaj qhov txwv, polar ntawm lub system yuav raug hloov, hauv qhov no, PLR header yuav tsum nyob rau hauv lub xeev rov qab, piv txwv li lub jumper yuav tsum tau ntxig yog tias nws tsis yog lossis rub tawm yog tias nws tau ntxig.
Daim Ntawv Thov Ib Txwm Muaj
Tus maub los yooj yim siv.
Kauj Ruam 1. Txuas 1% qhov chaw nres nkoj ntawm lub coupler rau lub photodiode ntawm tus maub los.
Kauj Ruam 2. Txuas qhov hluav taws xob bias ntawm tus maub los (los ntawm SMA lossis 2.54mm 2-pin header) rau qhov chaw nres nkoj bias ntawm lub modulator.
Kauj Ruam 3. Muab cov maub los nrog + 15V thiab -15V DC voltages.
Kauj Ruam 4. Pib dua lub maub los thiab nws yuav pib ua haujlwm.
CEEB TOOM. Thov xyuas kom meej tias lub teeb liab RF ntawm tag nrho lub kaw lus qhib ua ntej pib dua lub maub los.
Rofea Optoelectronics muaj cov khoom lag luam ntawm Electro-optic modulators, Phase modulators, Intensity modulator, Photodetectors, Laser light sources, DFB lasers, Optical amplifiers, EDFA, SLD laser, QPSK modulation, Pulse laser, Light detector, Balanced photodetector, Laser driver, Fiber optic amplifier, Optical power meter, Broadband laser, Tunable laser, Optical detector, Laser diode driver, Fiber amplifier. Peb kuj muab ntau yam modulators tshwj xeeb rau kev hloov kho, xws li 1 * 4 array phase modulators, ultra-low Vpi, thiab ultra-high extinction ratio modulators, feem ntau siv hauv cov tsev kawm qib siab thiab cov koom haum.
Vam tias peb cov khoom yuav pab tau koj thiab koj txoj kev tshawb nrhiav.
