Kugwiritsa ntchito ukadaulo wa electro-optic modulator

Kugwiritsa ntchito ukadaulo wamodulator yamagetsi

Chowongolera chamagetsi (Electro-optic modulator)Chosinthira cha EOM） ndi chinthu chowongolera chizindikiro chomwe chimagwiritsa ntchito mphamvu ya electro-optic kuti chisinthe kuwala. Mfundo yake yogwirira ntchito nthawi zambiri imapezeka kudzera mu mphamvu ya Pockels (Pockels effect, yomwe ndi mphamvu ya Pockels), yomwe imagwiritsa ntchito mwayi woti chizindikiro cha refractive cha zinthu zosawunikira chimasintha pansi pa mphamvu ya magetsi.

Kapangidwe koyambira ka electro-optic modulator nthawi zambiri kumakhala ndi kristalo (kristalo wa Pockels) yokhala ndi mphamvu ya electro-optical, ndipo chinthu chofala ndi lithiamu niobate (LiNbO₃). Voltage yofunikira kuti isinthe gawo imatchedwa Half-wave voltage. Pa makristalo a Pockels, ma volt mazana kapena zikwi zambiri nthawi zambiri amafunikira, motero kufunikira kwa ma amplifiers amphamvu kwambiri. Dongosolo loyenera lamagetsi limatha kusintha voliyumu yayikulu yotereyi mumasekondi ochepa, kulola EOM kugwiritsidwa ntchito ngati switch yofulumira; Chifukwa cha capacitive ya makristalo a Pockels, ma driver awa amafunika kupereka mphamvu yambiri (pankhani ya switch yofulumira kapena modulation, capacitance iyenera kuchepetsedwa kuti ichepetse kutayika kwa mphamvu). Nthawi zina, monga pamene pakufunika amplitude yaying'ono kapena phase modulation, voltage yaying'ono yokha ndiyo imafunika kuti isinthe. Zipangizo zina za kristalo zopanda mzere zomwe zimagwiritsidwa ntchito mu ma modulators a electro-optical (Chosinthira cha EOM) zikuphatikizapo potaziyamu titanate (KTP), beta-barium borate (BBO, yoyenera mphamvu yapakati komanso/kapena ma switching frequency apamwamba), lithiamu tantalate (LiTaO3), ndi ammonium phosphate (NH4H2PO4, ADP, yokhala ndi mphamvu zapadera za electro-optical).

Ma modulators amagetsi (Electro-optic)EO modulator） akuwonetsa kuthekera kofunikira kogwiritsa ntchito m'magawo angapo apamwamba aukadaulo:

1. Kulankhulana kwa ulusi wa kuwala: Mu ma network amakono olumikizirana, ma modulators amagetsi ndi kuwala (electro-optical modulators)EO modulator） amagwiritsidwa ntchito kusintha ma siginecha a kuwala, kuonetsetsa kuti deta ikuyenda bwino komanso modalirika patali. Mwa kuwongolera bwino gawo kapena kukula kwa kuwala, kutumiza chidziwitso mwachangu komanso mwamphamvu kwambiri kumatha kuchitika.

2. Kusanthula kwapadera kwa ma spectroscopy: Chowongolera cha electro-optical chimasinthasintha gwero la kuwala mu spectrometer kuti chiwongolere kulondola kwa muyeso. Mwa kusintha mwachangu ma frequency kapena gawo la chizindikiro cha kuwala, kusanthula ndi kuzindikira zigawo zovuta za mankhwala kumatha kuthandizidwa, ndipo kutsimikiza ndi kukhudzidwa kwa muyeso wa ma spectral kumatha kukonzedwa.

3. Kukonza deta ya kuwala kwapamwamba kwambiri: modulator yamagetsi ndi kuwala mu makina owerengera ndi kukonza deta, kudzera mu kusintha kwa ma siginecha a kuwala nthawi yeniyeni kuti akonze liwiro la kukonza deta komanso kusinthasintha. Ndi mawonekedwe a EOM oyankha mwachangu, kukonza ndi kutumiza deta ya kuwala kwachangu komanso kocheperako kumatha kuchitika.

4. Ukadaulo wa laser: Chowongolera cha electro-optic chimatha kuwongolera gawo ndi kukula kwa kuwala kwa laser, kupereka chithandizo cha kujambula kolondola, kukonza kwa laser ndi ntchito zina. Mwa kusintha molondola magawo a kuwala kwa laser, kukonza kwa laser kwapamwamba kwambiri kumatha kuchitika.