Ultra High Precision MZM modulator Bias Controller Tsis Siv Neeg Bias Controller
Feature
• Kev tswj tsis zoo voltage ntawm Peak/Null/Q+/Q−
• Kev tswj hluav taws xob tsis zoo ntawm qhov chaw tsis txaus ntseeg
• Ultra meej tswj: 50dB siab tshaj plaws kev ploj tuag piv ntawm Null hom;
± 0.5◦ qhov tseeb ntawm Q + thiab Q- hom
• Tsawg dither amplitude:
0.1% Vπ ntawm NULL hom thiab PEAK hom
2% Vπ ntawm Q + hom thiab Q- hom
• Kev ruaj ntseg siab: nrog rau kev siv digital tag nrho
• Tsawg profile: 40mm(W) × 30mm(D) × 10mm(H)
• Yooj yim rau siv: Kev tuav haujlwm nrog mini jumper;
Kev ua haujlwm OEM hloov tau los ntawm MCU UART2
• Ob hom sib txawv los muab kev tsis sib haum xeeb: a. Tsis siv neeg tsis zoo tswj
b. Tus neeg siv txhais tsis zoo voltage
Daim ntawv thov
• LiNbO3 thiab lwm yam MZ modulators
• Digital NRZ, RZ
• Pulse applications
• Brillouin scattering system thiab lwm yam optical sensors
• CATV Transmitter
Kev ua tau zoo
Daim duab 1. Kev Tiv Thaiv Kev Tiv Thaiv
Daim duab 2. Pulse Generation
Daim duab 3. Modulator max zog
Daim duab 4. Modulator yam tsawg kawg nkaus hwj chim
Maxim DC extinction ratio
Hauv qhov kev sim no, tsis muaj RF signals raug siv rau lub kaw lus. Pure DC extinciton tau ntsuas.
1. Daim duab 5 qhia txog lub hwj chim kho qhov muag ntawm cov zis modulator, thaum modulator tswj ntawm Peak point. Nws qhia 3.71dBm hauv daim duab.
2. Daim duab 6 qhia txog lub hwj chim kho qhov muag ntawm cov zis modulator, thaum modulator tswj ntawm Null point. Nws qhia -46.73dBm hauv daim duab. Hauv kev sim tiag tiag, tus nqi sib txawv ntawm -47dBm; thiab -46.73 yog tus nqi ruaj khov.
3. Yog li ntawd, qhov ruaj khov DC extinction piv ntsuas yog 50.4dB.
Kev xav tau rau siab extinction ratio
1. System modulator yuav tsum muaj siab extinction piv. Cov yam ntxwv ntawm qhov system modulator txiav txim siab qhov siab tshaj plaws extinction piv tuaj yeem ua tiav.
2. Polarization ntawm modulator input teeb yuav tsum tau saib xyuas. Modulators yog rhiab heev rau polarization. Kev tsim nyog polarization tuaj yeem txhim kho kev ploj tuag ntau dua 10dB. Hauv kev sim hauv kev sim, feem ntau xav tau tus tswj polarization.
3. Kev tswj xyuas tsis zoo. Hauv peb qhov kev sim DC extinction ratio, 50.4dB extinction ratio tau ua tiav. Thaum cov ntaub ntawv ntawm lub modulator tsim tsuas yog sau 40dB. Qhov laj thawj ntawm qhov kev txhim kho no yog tias qee cov modulators drift sai heev. Rofea R-BC-Txhua tus tswj hwm kev tsis ncaj ncees hloov kho qhov tsis ncaj ncees qhov hluav taws xob txhua 1 thib ob kom paub meej cov lus teb ceev.
Specifications
| Parameter | Min | Ntaus | Max | Chav tsev | Cov xwm txheej |
| Tswj Kev Ua Haujlwm | |||||
| Extinction ratio | MER 1 | 50 | dB | ||
| CSO 2 | -55 | -65 ib | -70 ib | dBc ua | amplitude: 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 | |||||
| Positive zog voltage | +14.5 | +15 | +15.5 | V | |
| Positive zog tam sim no | 20 | 30 | mA | ||
| Tsis zoo zog voltage | -15.5 | -15 | -14.5 | V | |
| Tsis zoo zog tam sim no | 2 | 4 | mA | ||
| Output voltage ntau | - 9.57 Nws | + 9.85 Nws | V | ||
| Cov zis voltage precision | 346 | µV | |||
| Dither zaus | 999.95 ib | 1000 | 1000.05 Nws | 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- | ||||
| Kho qhov muag | |||||
| Input optical zog 3 | -30 | -5 | dBm ib | ||
| Input wavelength | 780 ua | 2000 | nm | ||
1. MER yog hais txog Modulator Extinction Ratio. Qhov kev ploj tuag piv tau ua tiav yog feem ntau qhov kev ploj tuag ntawm kev hloov pauv tau teev tseg hauv cov ntaub ntawv modulator.
2. CSO yog hais txog kev txiav txim thib ob. Txhawm rau ntsuas CSO kom raug, qhov linear zoo ntawm RF teeb liab, modulators thiab receivers yuav tsum xyuas kom meej. Tsis tas li ntawd, lub kaw lus CSO nyeem ntawv yuav txawv thaum khiav ntawm ntau zaus RF.
3. Thov nco ntsoov tias input optical zog tsis sib haum rau lub hwj chim kho qhov muag ntawm xaiv qhov tsis ncaj ncees lawm. Nws hais txog lub zog kho qhov muag siab tshaj plaws uas tus modulator tuaj yeem xa tawm mus rau tus tswj hwm thaum qhov kev tsis sib haum xeeb ntawm −Vπ rau + Vπ.
Tus neeg siv interface
Daim duab 5. Kev sib dhos
| Pab pawg | Kev ua haujlwm | Kev piav qhia |
| Photodiode 1 | PD: Txuas MZM photodiode's Cathode | Muab photocurrent tawm tswv yim |
| GND: Txuas MZM photodiode's Anode | ||
| Hwj chim | Lub hwj chim qhov chaw rau kev tswj tsis ncaj ncees | V-: txuas qhov tsis zoo electrode |
| V +: txuas qhov zoo electrode | ||
| Nruab nrab sojntsuam: txuas hauv av electrode | ||
| Rov pib dua | Ntxig jumper thiab rub tawm tom qab 1 thib ob | Pib dua tus maub los |
| Hom Xaiv | Ntxig lossis rub tawm lub jumper | tsis muaj jumper: Null hom; nrog jumper: Quad hom |
| Polar Xaiv 2 | Ntxig lossis rub tawm lub jumper | tsis muaj jumper: Zoo Polar; nrog jumper: Negative Polar |
| Tsis zoo Voltage | Txuas nrog MZM tsis ncaj ncees qhov chaw nres nkoj | OUT thiab GND muab kev tsis ncaj ncees voltages rau modulator |
| LED | Tsis tas li ntawd rau | Ua haujlwm nyob rau hauv lub xeev ruaj khov |
| On-off lossis off-on txhua 0.2s | Ua cov ntaub ntawv thiab tshawb xyuas qhov chaw tswj | |
| On-off lossis off-on txhua 1s | Input optical zog tsis muaj zog heev | |
| On-off lossis off-on txhua 3s | Input optical zog muaj zog heev | |
| UART | Ua haujlwm tswj ntawm UART | 3.3: 3.3V siv voltage |
| GND: Hauv av | ||
| RX: Tau txais kev tswj hwm | ||
| TX: Transmit of controller | ||
| Tswj Xaiv | Ntxig lossis rub tawm lub jumper | tsis muaj jumper: jumper tswj; nrog jumper: UART tswj |
1. Qee qhov MZ modulators muaj cov photodiodes sab hauv. Kev teeb tsa tus tswj hwm yuav tsum tau xaiv ntawm kev siv tus tswj lub photodiode lossis siv modulator lub photodiode sab hauv. Nws raug nquahu kom siv tus maub los lub photodiode rau kev sim Lab rau ob qho laj thawj. Ua ntej, maub los photodiode tau ua kom zoo. Thib ob, nws yooj yim dua los kho cov teeb pom kev tawm tswv yim. Nco tseg: Yog tias siv modulator's internal photodiode, thov nco ntsoov tias cov zis tam sim no ntawm photodiode yog nruj me ntsis proportional rau input zog.
2. Polar pin yog siv los hloov qhov chaw tswj ntawm Peak thiab Null hauv Null tswj hom (txiav txim siab los ntawm Hom Xaiv tus pin) lossis Quad +
thiab Quad- hauv Quad tswj hom. Yog tias jumper ntawm tus pin polar tsis tau ntxig, qhov taw tes tswj yuav yog Null hauv Null hom lossis Quad + hauv Quad hom. Amplitude ntawm RF system tseem yuav cuam tshuam rau qhov taw tes tswj. Thaum tsis muaj RF teeb liab lossis RF teeb liab amplitude me me, tus maub los muaj peev xwm kaw qhov chaw ua haujlwm kom kho qhov taw tes raws li xaiv los ntawm MS thiab PLR jumper. Thaum lub teeb liab RF amplitude tshaj qhov pib, lub polar ntawm lub kaw lus yuav raug hloov, qhov no, lub PLR header yuav tsum nyob rau hauv lub opposite lub xeev, piv txwv li lub jumper yuav tsum tau muab tso rau yog hais tias nws tsis yog los yog rub tawm yog hais tias nws yog tso.
Daim ntawv thov
Cov maub los yooj yim siv.
Kauj ruam 1. Txuas 1% chaw nres nkoj ntawm lub coupler mus rau photodiode ntawm tus maub los.
Kauj ruam 2. Txuas kev tsis ncaj ncees voltage tso zis ntawm tus maub los (los ntawm SMA los yog 2.54mm 2-pin header) rau qhov chaw nres nkoj ntawm lub modulator.
Kauj ruam 3. Muab cov maub los nrog + 15V thiab -15V DC voltages.
Kauj ruam 4. Pib dua tus maub los thiab nws yuav pib ua haujlwm.
Nco tseg. Thov xyuas kom meej tias RF teeb liab ntawm tag nrho lub cev nyob rau ua ntej rov pib dua tus maub los.
Rofea Optoelectronics muaj cov khoom lag luam ntawm Electro-optic modulators, Phase modulators, Siv modulator, Photodetectors, Laser light sources, DFB lasers, Optical amplifiers, EDFA, SLD laser, QPSK modulation, Pulse laser, Light detector, Balanced photodetector, Laser tsav tsheb , Fiber optic amplifier, Optical zog ntsuas, Broadband laser, Tunable laser, Optical detector, Laser diode tsav tsheb, Fiber amplifier. Peb kuj muab ntau yam modulators rau customization, xws li 1 * 4 array theem modulators, ultra-low Vpi, thiab ultra-high extinction ratio modulators, feem ntau yog siv nyob rau hauv cov tsev kawm ntawv thiab cov koom haum.
Vam tias peb cov khoom yuav pab tau rau koj thiab koj cov kev tshawb fawb.
