Izindlela zokuhlola zokusebenza kwei-electro-optic module
1. Izinyathelo zokuhlola i-half-wave voltage zei-electro-optic intensity modulator
Uma sithatha i-half-wave voltage kutheminali ye-RF njengesibonelo, umthombo wesiginali, idivayisi evivinywayo kanye ne-oscilloscope kuxhunywe ngomshini wezindlela ezintathu. Lapho uhlola i-voltage enguhafu yegagasi kutheminali ye-Bias, yixhume ngokomugqa wamachashazi.
b. Vula umthombo wokukhanya nomthombo wesignali, bese usebenzisa isignali yegagasi ye-sawtooth (imvamisa yokuhlola evamile ngu-1KHz) kudivayisi evivinywayo. Isignali ye-sawtooth wave Vpp kufanele ibe nkulu kuphindwe kabili i-half-wave voltage.
c. Vula i-oscilloscope;
d. Isignali ephumayo yomtshina isignali ye-cosine. Rekhoda amanani kagesi we-sawtooth wave V1 kanye ne-V2 ahambisana neziqongo eziseduze nemikhombe yalesi siginali. e. Bala i-voltage enguhhafu yegagasi ngokweFomula (3).
2. Izinyathelo zokuhlola ze-voltage yamagagasi anguhhafu wei-electro-optic phase module
Ngemva kokuxhuma uhlelo lokuhlola, umehluko wendlela ye-optical phakathi kwezingalo ezimbili ezakha isakhiwo se-interferometer optical kumele ube ngaphakathi kobude bokuhambisana. Umthombo wesignali kanye netheminali ye-RF yocingo oluvivinywayo kanye neshaneli 1 ye-oscilloscope kuxhunywe ngomshini wezindlela ezintathu. Ngemva kokuxhuma uhlelo lokuhlola, umehluko wendlela ye-optical phakathi kwezingalo ezimbili ezakha isakhiwo se-interferometer optical kumele ube ngaphakathi kobude bokuhambisana. Umthombo wesignali kanye netheminali ye-RF yocingo oluvivinywayo kanye neshaneli 1 ye-oscilloscope kuxhunywe ngocingo olunendlela-ntathu, futhi imbobo yokufaka ye-oscilloscope ilungiswa ibe yisimo sokukhubazeka okuphezulu.
b. Vula i-laser nomthombo wesignali, bese usebenzisa isignali yegagasi ye-sawtooth yefrikhwensi ethile (inani elivamile elingu-50KHz) kudivayisi ehlolwayo. Isignali ephumayo yomtshina isignali ye-cosine. I-Vpp yesiginali ye-sawtooth wave kufanele ibe nkulu ngokuphindwe kabili kunomthamo wamagagasi angamahafu, kodwa ingeqi ububanzi bevoltheji yokufaka ecaciswe imodemu, ukuze isignali ye-cosine ephumayo yomtshina yethule okungenani umjikelezo owodwa ophelele.
c. Rekhoda amanani we-voltage ye-sawtooth i-V1 ne-V2 ehambisana neziqongo eziseduze kanye nemikhombe yesiginali ye-cosine;
d. Bala i-voltage enguhhafu yegagasi ngokweFomula (3).
3. Ukulahlekelwa kokufakwa kwama-modulators e-electro-optic
Izinyathelo zokuhlola
Ngemva kokuxhuma umthombo wokukhanya kanye ne-polarizer, vula umthombo wokukhanya bese uhlola amandla okufaka okufakayo we-Pi wedivayisi ngaphansi kokuhlolwa ngemitha yamandla okubona.
b. Xhuma idivayisi ngaphansi kokuhlolwa ohlelweni lokuhlola, futhi uxhumanise amatheminali okukhiphayo okuphakelwa kwamandla okulawulwayo namaphinikhodi 1 (GND) kanye no-2(Bias) we-imoduli(kwamanye amaqoqo amamoduli, iphinikhodi 1 yemoduli nayo idinga ukuxhunywa ezindlini).
c. Lungisa i-voltage ephumayo yokunikezwa kwamandla okulawulwayo futhi uhlole ubuningi bokufunda imitha yamandla okubona njenge-Pout.
d. Uma idivayisi evivinywayo iyimoduli yesigaba, asikho isidingo sokwengeza ukunikezwa kwamandla kagesi ezinzisa amandla kagesi. I-Pout ingafundwa ngokuqondile kumitha yamandla optical.
e. Bala ukulahlekelwa kokufaka ngokweFomula (1).
Izinyathelo zokuzivikela
a. Okokufaka okubonakalayo kwemoduli ye-electro-optic akumele kudlule inani lokulinganisa embikweni wokuhlola; kungenjalo, iI-EO moduleizolimala.
b. Okokufaka kwe-RF kwemoduli ye-electro-optic akumele kudlule inani lokulinganisa eshidini lokuhlola; ngaphandle kwalokho, i-modulator ye-EO izolimala.
c. Lapho usetha i-interferometer, kunezidingo eziphakeme kakhulu zemvelo yokusetshenziswa. Ukunyakaziswa kwemvelo kanye nokunyakaziswa kwe-fiber optical kungathinta kokubili imiphumela yokuhlolwa.
Isikhathi sokuthumela: Aug-05-2025