Enye yezinto ezibaluleke kakhulu ze-modulator ye-optical modulator iyijubane layo lokushintshanisa noma i-bandwidth, okufanele okungenani ibe ngokushesha njenge-elekthronikhi etholakalayo. Ama-transistors anokuhamba imvamisa ngaphezulu kwe-100 GHZ asebonisiwe kubuchwepheshe be-silicon abangama-90, futhi ijubane lizophinde likhuphuke njengoba ubukhulu besici buncishisiwe [1]. Kodwa-ke, i-bandwidth yama-modulators asuselwa kulo we-silicon alinganiselwe. I-Silicon ayinayo i-χ (2) -Inlinearity ngenxa yesakhiwo sayo se-syntro-symmetric crystalline. Ukusetshenziswa kwe-silicon eqinile kuholele emiphumeleni ethokozisayo kakade [2], kepha izingqimba ezingahambisani azivumeli amadivayisi asebenzayo. Isimo se-State-of-Art Silicon Photonic Modulators ngakho-ke sisathembela ekusakazweni kwe-Free Carriers kuma-PN noma PIN juntcents [3-5]. Ukudluliselwa phambili kuboniswe ukukhombisa umkhiqizo wobubanzi be-voltage ubude njenge-Vπl = 0.36 v mm, kepha ijubane lokushintshanisa lilinganiselwe ama-Dynamics abathwali abambalwa. Noma kunjalo, amanani edatha angu-10 GBIT / S akhiqizwe ngosizo lokugcizelela kwangaphambi kolimi lukagesi [4]. Kusetshenziswa ama-juntces ahlehlisiwe esikhundleni, i-bandwidth inyuke yaba yi-30 GHZ [5,6], kepha iVoltageleLengy Proctor yavuka i-VCL = 40 v mm. Ngeshwa, ama-modulators anjalo we-PLASMA athinta isigaba akhiqiza ukuguquguquka okungafuneki okungafuneki kanye [7], futhi aphendula ngokungaqondile kumandla kagesi asetshenzisiwe. Amafomethi wokushintshana athuthukile afana ne-QAM adinga, noma kunjalo, impendulo eqondile kanye nokuguquguquka kwesigaba esihlanzekile, okwenza ukuxhashazwa kwe-Electro-Optic Effect (ama-Pockels affect [8] [8] [8] [8]).
2. Indlela ye-SOH
Muva nje, indlela ye-silicon-organic hybrid (soh) iphakanyisiwe [9-16]. Isibonelo sesimondi se-SOH sikhonjiswa ku-Fig. 1 (a). Siqukethe i-waveguide ye-slot eqondisa insimu ye-optical, kanye nemichilo emibili kaSiliman exhumanisa ngogesi nge-waveguide ye-aclealic. Ama-electrodes atholakala ngaphandle kwenkambu ye-Optical Modal ukugwema ukulahleka okubonakalayo [13], umkhiwane 1 (b). Idivayisi ihlanganiswe ngezinto eziphilayo ze-electro-optic optices ezigcwalisa i-slot. I-voltage eguqukayo ithwalwa nge-waveguide kagesi yensimbi bese yehla ngaphesheya kwe-slot ngenxa yemichilo ye-silicon esebenzayo. Inkambu kagesi ephumela ishintsha inkomba ye-refraction ku-slot ngokusebenzisa umphumela we-electro-optic osheshayo. Njengoba i-slot inobubanzi ngokulandelana kwe-100 nm, amavolokhethi ambalwa anele ukukhiqiza izinkundla eziqinile eziguqukayo ezikuhle kakhulu ngokulandelana kwamandla okusetshenziswa okuningi kwezinto zokwakha eziningi. Lesi sakhiwo sinokusebenza okuphezulu kokushintshana kusukela zombili izindlela zokushintshana kanye nezinkundla zokubona zigxile ngaphakathi kwe-slot, Fig. 1 (b) [14]. Ngempela, ukwenziwa kokuqala kwama-soh modworators ngokusebenza kwe-sub-volt [11] sekubonisiwe, futhi ukuguquguquka kwe-sinousoidal kuze kube ngu-40,16] ku-40,16]. Kodwa-ke, inselelo ekwakheni ama-modulators aphansi aphezulu we-SHOH ukudala umucu wokuxhuma omkhulu kakhulu. Esisekelweni esilinganayo se-slot singamelelwa yi-capacitor C kanye nemichilo evuthayo ngabaphikisi r, Fig. 1 (b). Isikhathi esihambisanayo se-RC sinquma i-bandwidth yedivayisi [10,14,17,18]. Ukuze wehlise ukumelana r, kuphakanyisiwe ukuthi athathe ama-salicon string [10,14]. Ngenkathi i-doping inyusa ukuqina kwemichilo ye-silicon (ngakho-ke kwandisa ukulahleka kwe-optical), umuntu ukhokha inhlawulo eyengeziwe yokulahleka ngoba ukuhamba kwe-elektroni kuphazamiseka ngokungcola okuhlakazeka [10,14,19]. Ngaphezu kwalokho, imizamo yokuqamba yakamuva kakhulu ikhombisa ukuqhutshwa okuphansi ngokungazelelwe.
I-Beijing Rofea Optoelectoronics Co, Ltd. Inkampani yethu isebenza ngokukhethekile ocwaningweni oluzimele kanye nentuthuko, ukuklama, ukukhiqiza, ukuthengiswa kwemikhiqizo ye-opoleectronic, futhi kunikeze izixazululo ezintsha kanye nezinsizakalo ezenziwe ngezifiso zabaphenyi besayensi nonjiniyela bezimboni. Ngemuva kweminyaka yokuqamba okuzimele, kwakha uchungechunge olucebile futhi oluphelele lwemikhiqizo yezithombe, esetshenziswa kabanzi kumasipala, ezempi, ezokuhamba, amandla kagesi, ezezimali, ezemfundo, ezemfundo.
Silangazelela ukubambisana nawe!
Isikhathi sePosi: Mar-29-2023