Ultra High Precision MZM modulator Bias Controller Automatic Bias Controller
Sebopeho
• Taolo ea matla a leeme ho Peak/Nnull/Q+/Q-
• Taolo ea matla a leeme sebakeng se sa reroang
• Taolo e nepahetseng haholo: 50dB tekanyo e phahameng ea ho fela ha mokhoa oa Null;
±0.5◦ ho nepahala ho mekhoa ea Q+ le Q-
• Bophahamo bo tlase ba dither:
0.1% Vπ ka mokhoa oa NULL le mokhoa oa PEAK
2% Vπ ka mokhoa oa Q+ le mokhoa oa Q-
• Botsitso bo phahameng: ka ts'ebetsong ea digital ka botlalo
• Boemo bo tlase: 40mm(W) × 30mm(D) × 10mm(H)
• Ho bonolo ho e sebelisa: Ho sebetsa ka letsoho ka jumper e nyenyane;
Lits'ebetso tse bonolo tsa OEM ka MCU UART2
• Mekhoa e 'meli e fapaneng ea ho fana ka voltage ea leeme: a.Automatic bias control
b. Mosebelisi o hlalositsoe ke bias voltage
Kopo
• LiNbO3 le li-modulator tse ling tsa MZ
• Digital NRZ, RZ
• Lisebelisoa tsa Pulse
• Sistimi ea ho hasanya ea Brillouin le li-sensor tse ling tsa optical
• CATV Transmitter
Tshebetso
Setšoantšo sa 1. Khatello ea Mofani
Setšoantšo sa 2. Pulse Generation
Setšoantšo sa 3. Modulator max power
Setšoantšo sa 4. Modulator bonyane ba matla
Maxim DC extinction ratio
Tekong ena, ha ho na matšoao a RF a sebelisitsoeng tsamaisong. Pure DC extinciton e lekantsoe.
1. Setšoantšo sa 5 se bontša matla a optical a tlhahiso ea modulator, ha modulator e laoloa sebakeng sa Peak point. E bonts'a 3.71dBm setšoantšong.
2. Setšoantšo sa 6 se bontša matla a optical a tlhahiso ea modulator, ha modulator e laoloa sebakeng sa Null point. E bontša -46.73dBm setšoantšong. Tekong ea 'nete, boleng bo fapana ho pota -47dBm; le -46.73 ke boleng bo tsitsitseng.
3. Ka hona, tekanyo e tsitsitseng ea ho fela ha DC e lekantsoeng ke 50.4dB.
Litlhoko tsa karo-karolelano e phahameng ea ho fela
1. Modulator ea tsamaiso e tlameha ho ba le tekanyo e phahameng ea ho fela. Tšobotsi ea modulator ea sistimi e etsa qeto ea hore na ho ka finyelloa karo-karolelano e phahameng ea ho timela.
2. Polarization ea leseli la ho kenya modulator e tla hlokomeloa. Li-modulator li na le maikutlo a ho polarization. Polarization e nepahetseng e ka ntlafatsa karolelano ea ho timela ho feta 10dB. Litekong tsa lab, hangata ho hlokahala taolo ea polarization.
3. Balaoli ba leeme ba nepahetseng. Tekong ea rona ea karo-karolelano ea ho timela ha DC, karo-karolelano ea pheliso ea 50.4dB e fihletsoe. Ha database ea modulator e etsa lethathamo la 40dB feela. Lebaka la ntlafatso ena ke hore li-modulator tse ling li hoholeha ka potlako haholo. Rofea R-BC-Litaolo life kapa life tsa leeme li ntlafatsa motlakase oa bias motsotsoana o mong le o mong o le mong ho netefatsa karabo e potlakileng.
Litlhaloso
| Paramethara | Min | Tlanya | Max | Yuniti | Maemo |
| Laola Tshebetso | |||||
| Karolelano ea ho fela | MER1 | 50 | dB | ||
| CSO2 | −55 | −65 | −70 | dBc | Bophahamo ba sekhahla: 2% Vπ |
| Nako ea botsitso | 4 | s | Lintlha tsa ho latela: Null & Peak | ||
| 10 | Lintlha tsa morao-rao: Q+ & Q- | ||||
| Motlakase | |||||
| Positive power voltage | + 14,5 | +15 | + 15,5 | V | |
| Positive power current | 20 | 30 | mA | ||
| Matla a matla a fosahetseng | -15,5 | -15 | -14,5 | V | |
| Negative power current | 2 | 4 | mA | ||
| Lethathamo la matla a tsoang | -9.57 | +9,85 | V | ||
| Ho nepahala ha motlakase o tsoang | 346 | µV | |||
| Dither frequency | 999.95 | 1000 | 1000.05 | Hz | Mofuta: 1kHz lets'oao la dither |
| Hlakola amplitude | 0.1%Vπ | V | Lintlha tsa ho latela: Null & Peak | ||
| 2% Vπ | Lintlha tsa morao-rao: Q+ & Q- | ||||
| Optical | |||||
| Kenya matla a optical3 | -30 | -5 | dBm | ||
| Kenya wavelength | 780 | 2000 | nm | ||
1. MER e bua ka Modulator Extinction Ratio. Karolelano ea ho timela e fihlelletsoeng hangata ke karo-karolelano ea ho fela ha modulator e boletsoeng ho database ea modulator.
2. CSO e bua ka taelo ea bobeli e kopaneng. Ho metha CSO ka nepo, ho tla netefatsoa boleng ba mohala oa lets'oao la RF, li-modulator le baamoheli. Ntle le moo, lipalo tsa sistimi ea CSO li ka fapana ha li sebetsa ka maqhubu a fapaneng a RF.
3. Ka kopo hlokomela hore matla a optical a input ha a tsamaisane le matla a optical sebakeng se khethiloeng sa bias point. E bua ka matla a phahameng a optical ao modulator a ka a romellang ho molaoli ha voltage ea bias e tloha ho −Vπ ho ea +Vπ .
Mosebelisi
Setšoantšo sa5. Kopano
| Sehlopha | Tshebetso | Tlhaloso |
| Photodiode 1 | PD: Hokela Cathode ea MZM photodiode | Fana ka maikutlo a photocurrent |
| GND: Hokela Anode ea MZM photodiode | ||
| Matla | Mohloli oa matla bakeng sa molaoli oa leeme | V-: e kopanya electrode e mpe |
| V +: e kopanya electrode e ntle | ||
| Probe e bohareng: e kopanya electrode ea fatše | ||
| Seta bocha | Kenya jumper 'me u ntše ka mor'a motsotsoana o le mong | Seta selaoli bocha |
| Mokgwa Khetha | Kenya kapa ntsha seqhomane | ha ho jumper: Mokhoa oa Null; ka jumper: Quad mode |
| Polar Select2 | Kenya kapa ntsha seqhomane | ha ho jumper: Polar e ntle; le jumper: Negative Polar |
| Voltage e ikhethileng | Hokela ho MZM bias voltage port | OUT le GND li fana ka matla a leeme bakeng sa modulator |
| LED | Hantle feela | Ho sebetsa tlasa mmuso o tsitsitseng |
| Ho tima kapa ho tima ka metsotso e meng le e meng e 0.2 | Ts'ebetso ea data le ho batla sebaka sa taolo | |
| Ho tima kapa ho tima motsotso o mong le o mong oa 1 | Matla a ho kenya a fokola haholo | |
| Ho tima kapa ho tima metsotso e meng le e meng ea 3 | Matla a kentsoeng a matla a matla haholo | |
| UART | Sebetsa molaoli ka UART | 3.3: 3.3V motlakase oa litšupiso |
| GND: Fatše | ||
| RX: Fumana molaoli | ||
| TX: Phetiso ea molaoli | ||
| Laola Khetha | Kenya kapa ntsha seqhomane | no jumper/ Ketso ya ho tlola: taolo ya jumper;ka jumper:UART control |
1. Li-modulator tse ling tsa MZ li na le li-photodiode tsa ka hare. Setupo sa taolo se lokela ho khethoa lipakeng tsa ho sebelisa photodiode ea molaoli kapa ho sebelisa photodiode ea ka hare ea modulator. Ho khothaletsoa ho sebelisa photodiode ea controller bakeng sa liteko tsa Lab ka mabaka a mabeli. Taba ea pele, photodiode ea molaoli e netefalitse boleng. Ea bobeli, ho bonolo ho fetola matla a lebone la ho kenya. Tlhokomeliso: Haeba u sebelisa photodiode ea ka hare ea modulator, ka kopo etsa bonnete ba hore tlhahiso ea hona joale ea photodiode e lekana hantle le matla a ho kenya.
2. Polar pin e sebelisetsoa ho fetola ntlha ea taolo pakeng tsa Peak le Null ka mokhoa oa ho laola Null (e khethiloeng ke Mode Select pin) kapa Quad+
le Quad-in Quad control mode. Haeba jumper ea pin ea polar e sa kenngoa, sebaka sa taolo e tla ba Null in Null mode kapa Quad + ka Quad mode. Amplitude ea sistimi ea RF le eona e tla ama ntlha ea taolo. Ha ho se na lets'oao la RF kapa amplitude ea lets'oao la RF e nyane, molaoli o khona ho notlela sebaka sa mosebetsi ho lokisa ntlha joalo ka ha e khethiloe ke MS le PLR jumper. Ha amplitude ea lets'oao la RF e feta moeli o itseng, polar ea sistimi e tla fetoloa, ntlheng ena, hlooho ea PLR e lokela ho ba maemong a fapaneng, ke hore, jumper e lokela ho kenngoa haeba e sa ntšoa kapa e ka ntšoa haeba e kentsoe.
Tšebeliso e Tloaelehileng
Molaoli o bonolo ho o sebelisa.
Mohato oa 1. Hokela 1% kou ea coupler ho photodiode ea molaoli.
Mohato2. Hokela bias voltage output ea controller (ka SMA kapa 2.54mm 2-pin header) ho boema-kepe ba leeme la modulator.
Mohato oa 3. Fana ka selaoli se nang le matla a +15V le -15V DC.
Mohato4. Seta setaolo hape 'me se tla qala ho sebetsa.
HLOKOMELA. Ka kopo etsa bonnete ba hore lets'oao la RF la sistimi eohle le butse pele u seta selaoli bocha.
Rofea Optoelectronics e fana ka lethathamo la lihlahisoa tsa khoebo ea Electro-optic modulators, Phase modulator, Intensity modulator, Photodetectors, Laser light sources, DFB lasers, Optical amplifiers, EDFA, SLD laser, QPSK modulation, Pulse laser, Light detector, Balanced driver photodetector, Laser , Fiber optic amplifier, Optical power meter, Broadband laser, Tunable laser, Optical detector, Laser diode driver, Fiber amplifier. Re boetse re fana ka li-modulator tse ngata tse ikhethileng, joalo ka li-modulator tsa 1 * 4 array phase, Vpi e tlase haholo, le li-modulator tse phahameng haholo tsa ho timela, tse sebelisoang haholo liunivesithing le litsing.
Re tšepa hore lihlahisoa tsa rona li tla u thusa le lipatlisiso tsa hau.
