I-Ultra ephezulu ngokunemba okuphezulu kwe-MZM Modulator Bias Isilawuli Sokuzenzakalelayo
Ubuso
• Ukulawulwa kwe-vortage voltage ku-Peak / Null / Q + + / Q-
• Ukulawulwa kwe-vortage ye-BIAS ngephuzu lokuphikisana
• Ukulawulwa okuqondile kwe-Ultra: Isilinganiso esiphezulu se-50DB ephezulu yokuqothula kumodi ye-NULL;
± 0.5◦ Ukunemba ku-Q + kanye ne-Q-
• I-amplitude ephansi:
0.1% Vπ kwimodi ye-NULL nemodi ephezulu
2% Vπ ku-Q + Imodi ne-Q- Imodi
• Ukuqina okuphezulu: Ngokuqaliswa ngokuphelele kwedijithali
• Iphrofayili ephansi: 40mm (W) × 30mm (d) × 10mm (h)
• Kulula ukuyisebenzisa: ukusebenza ngesandla nge-mini jumper;
Ukusebenza okuguquguqukayo kwe-Oem nge-MCU UART2
• Izinhlobo ezimbili ezihlukile zokuhlinzeka nge-bias Voltage: A.Automatic Bias control
b. Umsebenzisi uchaze amandla ka-Bias Voltage
Isicelo
• I-Linbo3 namanye ama-modulators we-MZ
• Idijithali NRZ, RZ
• Izicelo ze-Pulse
• Uhlelo lokusakazeka lweBrillouin nezinye izinzwa ezibonakalayo
• I-Catv transmitter
Ukwenza
Umdwebo 1. I-Carrier Supress
Umdwebo 2. Isizukulwane sokuphambanisa
Umdwebo 3. Amandla kaMax Modulator
Umdwebo 4. Amandla amancane modulator
Isilinganiso sokuqothuka seMaxim DC
Kulesi sivivinyo, azikho amasignali we-RF asetshenziswa ohlelweni. I-Pure DC Eprinciton ilinganiswe.
1. Umdwebo 5 ukhombisa amandla okubona okuphuma kokukhipha, lapho i-modulator ilawulwa endaweni ephezulu. Kubonisa u-3.71dbm emgqondweni.
2. Umdwebo 6 ukhombisa amandla okubona okuphuma kokukhipha, lapho i-modulator ilawulwa endaweni ye-null. Ibonisa -46.73DBM emgqondweni. Ekuhlolweni kwangempela, inani liyahlukahluka ngo-47dbm; futhi -46.73 inani elizinzile.
3. Ngakho-ke, isilinganiso esizinzile se-DC sokuqothula silinganiswa ngu-50.4DB.
Izidingo zesilinganiso esiphezulu sokuqothulwa
1. Isilungiselelo sesistimu kufanele sibe nesilinganiso esiphakeme sokuqothulwa. Isimilo sohlelo lweSistimu inquma isilinganiso esiphezulu sokuqothulwa singatholakala.
2. Ukukhanyisa kokufakwa kokufaka kwesizinda kuzonakekelwa. Ama-modulators azwelana nombala. I-polarization efanele ingathuthukisa isilinganiso sokuqothulwa ngaphezulu kwe-10DB. Ekuhlolweni kwelebhu, imvamisa isilawuli se-polarization siyadingeka.
3. Abalawuli be-bias okufanele. Esikhathini sethu sokuqothuka kwe-DC Spliction Ratio, isilinganiso se-50.4DB sokuqothula sesitholiwe. Ngenkathi i-datasheet yokukhiqizwa kwesimomuli kuphela kuhlu lwama-40db. Isizathu salokhu kuthuthukiswa ukuthi amanye ama-modulators ashesha ngokushesha okukhulu. I-RoFea R-BC-Noma yiziphi izilawuli ze-Bias zivuselela i-Bias Voltage njalo ngomzuzwana owodwa ukuqinisekisa impendulo esheshayo yethrekhi.
Ukucacisa
| Ipharameter | Uku | Ithandlela | Umnciphikazi | Umuvo | Izimo |
| Ukulawula ukusebenza | |||||
| Isilinganiso sokuqothulwa | Mer 1 | 50 | dB | ||
| Cso2 | -55 | -65 | -70 | I-DBC | I-DOW amplitude: 2% vπ |
| Isikhathi sokuqina | 4 | s | Amaphuzu wokulandela umkhondo: null & peak | ||
| 10 | Ukulandelela Amaphuzu: Q + & Q- | ||||
| -Gesi | |||||
| Amandla kagesi Omuhle | +14.5 | +15 | +15.5 | V | |
| Amandla amahle okwamanje | 20 | 30 | mA | ||
| Amandla kagesi angemuhle | -15.5 | -15 | -14.5 | V | |
| Amandla amangalisayo | 2 | 4 | mA | ||
| Ukukhishwa kwamandla kagesi | -9.57 | +9.85 | V | ||
| Ukucacisa ukucaciswa kwe-voltage | I-346 | μv | |||
| Thetha imvamisa | 999.95 | 1000 | I-1000.05 | Hz | Inguqulo: 1Khz DIT SINGAL |
| Thetha amplity | 0.1% Vπ | V | Amaphuzu wokulandela umkhondo: null & peak | ||
| 2% vπ | Ukulandelela Amaphuzu: Q + & Q- | ||||
| -Phathelene nokubona | |||||
| Faka amandla we-optical Power3 | -30 | -5 | dbm | ||
| I-Wavelength efakwayo | I-780 | 2000 | nm | ||
1. I-Mer isho isilinganiso sokuqothulwa kwesimondi. Ukuvuselelwa kokuqothulwa kufinyelelwe ngokujwayelekile isilinganiso sokuqothulwa kwesimondi esichaziwe kwi-datasheet ye-modulator.
2. UCSO ubhekisa ku-oda lesibili eliyinhlanganisela. Ukukala i-CSO kahle, ikhwalithi eqondile yesiginali ye-RF, ama-modulators kanye nabamukeli bayoqinisekiswa. Ngaphezu kwalokho, ukufundwa kohlelo lwe-CSO kungahluka lapho kugijima kumafrikhwensi ehlukene we-RF.
3. Sicela ubongelwe ukuthi ukufaka amandla okufakwayo akuhambelani namandla okukhanya endaweni ekhethiwe ye-bias. Kusho amandla aphezulu aphezulu aphezulu okuthi i-modulator angathumela isilawuli lapho ama-voltage voltage avela ku-VπST e-Vπ.
Isikhombimsebenzisi
Umdwebo5. Umbuthano
| Isixhobo | Ukuhlinza | Incazelo |
| PhotoDiode 1 | I-PD: Xhuma i-Calkode kaMzm Photodiode | Nikeza impendulo ye-PhotoCorent |
| I-GND: Xhuma i-anode ka-Mzm PhotoDiode | ||
| Ubuqhwaga | Umthombo wamandla wesilawuli se-bias | V-: Ixhuma i-electrode engemihle |
| V +: Ixhuma i-electrode enhle | ||
| I-Middle Probe: Ixhuma i-electrode yomhlabathi | ||
| Setha kabusha | Faka i-jumper bese ukhipha ngemuva kwesibili | Setha kabusha isilawuli |
| Khetha Imodi | Faka noma ukhiphe i-jumper | Ayikho i-jumper: imodi ye-null; nge-jumper: imodi ye-quad |
| I-Polar Select2 | Faka noma ukhiphe i-jumper | Ayikho i-jumper: i-polar enhle; Nge-jumper: i-polar engemihle |
| Vois Voltage | Xhuma ne-MZM BIAS Voltage Port | Ngaphandle futhi i-GND inikezela ngama-voltages we-bias we-modulator |
| -Vulwe | Ngokungemva kwalokho | Ukusebenza ngaphansi kwesimo esizinzile |
| On-off noma kuvaliwe njalo ngo-0.2s | Iyacubungula idatha futhi isesha iphuzu elilawulayo | |
| On-off noma kuvaliwe konke 1s | Amandla we-Optical abuthakathaka kakhulu | |
| On-off noma off-on wonke ama-3s | Amandla okufakwayo aqine kakhulu | |
| Umuni owesana owele we-UART | Sebenzisa isilawuli nge-UART | 3.3: 3.3v Reference Vertage |
| GND: Ground | ||
| Rx: thola isilawuli | ||
| I-TX: Dlulisa isilawuli | ||
| Ukulawula Khetha | Faka noma ukhiphe i-jumper | akukho jumper: Ukulawulwa kwe-jumper; nge-jumper: ukulawulwa kwe-uart |
1. Amanye ama-modulators we-MZ ane-PhotoDodes yangaphakathi. Ukusetha kwesilawuli kufanele kukhethwe phakathi kokusebenzisa i-PhotoDode ye-Controller noma usebenzisa i-Photodiode yangaphakathi ye-Modulator. Kunconywa ukusebenzisa i-PhotoDode ye-Lab izivivinyo zelebhu ngezizathu ezimbili. Okokuqala, i-controller Photodiode iqinisekise ikhwalithi. Okwesibili, kulula ukuguqula ubuhlakani bokufaka okukhanyayo. QAPHELA: Uma usebenzisa i-Photodiode yangaphakathi ye-Modulator, sicela uqinisekise ukuthi okukhishwa kwe-Photodiode kulingana ngokuqinile kumandla okufaka.
2. IPolar PIN isetshenziselwa ukushintsha iphuzu lokulawula phakathi kwe-Peak ne-Null kwimodi yokulawula ye-Null (enqunywe yimodi Khetha iPIN) noma i-Quad +
nemodi yokulawula ye-quad- in quad control mode. Uma i-jumper ye-polar PIN ayifakiwe, iphuzu lokulawula lizobe lingena kwimodi ye-null noma i-quad + kwimodi ye-quad. Amplitude of System azothinta nephuzu lokulawula. Lapho kungekho khona isinali ye-RF Signal noma i-RF Amplitude incane, isilawuli siyakwazi ukukhiya indawo yokusebenza ukulungisa iphuzu njengoba kukhethwe yi-MS ne-PLR jumper. Lapho i-RF Signal Amplitude idlula umkhawulo othile, i-polar of the System izoshintshwa, kulokhu, unhlokweni we-PLR kufanele abe esimweni esiphambene, okusho ukuthi i-jumper kufanele ifakwe uma ifakiwe noma ikhishwe uma ifakiwe.
Isicelo ejwayelekile
Isilawuli kulula ukusisebenzisa.
Isinyathelo1. Xhuma i-1% Port ye-coupler kwi-PhotoDiode yesilawuli.
Isinyathelo2. Xhuma ukuphuma kwe-vortage voltage yesilawuli (nge-sma noma i-2.54mm 2-PIN-PIN Header) ukuze i-Bias Port of the Modulator.
Isinyathelo3. Nikeza isilawuli nge + 15V kanye -15v DC voltages.
Step4. Setha kabusha isilawuli futhi izoqala ukusebenza.
Qaphela. Uyacelwa ukuthi uqinisekiswe ukuthi isinali ye-RF yohlelo lonke ngaphambi kokusetha kabusha isilawuli.
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Ngiyethemba imikhiqizo yethu izokusiza wena nocwaningo lwakho.
