A kọwapụtara nkenke ụdị ụdị modul eletrọ-optic

Igwe igwe eletrọnịkị (EOM) na-ejikwa ike, usoro na polaration nke eriri laser site na njikwa eletrọnịkị.
Igwe eletrọ-optic dị mfe bụ modulator usoro nke nwere naanị otu igbe Pockels, ebe ọkụ eletrik (etinyere na kristal site na electrode) na-agbanwe oge igbu oge nke eriri laser mgbe ọ banyere kristal. Ọnọdụ polarisation nke oghere ihe merenụ na-achọkarị ka ọ dakọtara na otu n'ime axes anya nke kristal ka ọnọdụ polarization nke osisi ahụ ghara ịgbanwe.

N'ọnọdụ ụfọdụ, ọ bụ naanị obere usoro mgbanwe (oge ma ọ bụ nke oge) ka achọrọ. Dịka ọmụmaatụ, a na-ejikarị EOM jikwaa ma mee ka ọ̀tụ̀tụ̀tụ aka nke resonators anya. A na-ejikarị ndị na-emegharị ụda resonance eme ihe n'ọnọdụ ebe achọrọ mgbanwe oge oge, na enwere ike nweta nnukwu ihe omimi modulation site na naanị voltaji ịnya ụgbọ ala na-agafeghị oke. Mgbe ụfọdụ, omimi modulation dị nnọọ ukwuu, na ọtụtụ sidelobe (ọkụ comb generator, ìhè comb) na-emepụta na ụdịdị dị iche iche.

Polarization modulator
Dabere na ụdị na ntụziaka nke kristal na-adịghị ahụ anya, yana ntụziaka nke ọkụ eletrik n'ezie, oge igbu oge na-ejikọta ya na ntụziaka polarization. Ya mere, igbe Pockels nwere ike ịhụ efere ebili mmiri na-achịkwa multi-voltage, ma enwere ike iji ya gbanwee steeti polarization. Maka ọkụ ntinye akara n'ahịrị (na-adịkarị n'akuku 45° site na axis kristal), polarization nke beam mmepụta na-abụkarị elliptik, kama ịbụ naanị ntụgharị site na Angle sitere na ìhè mbụ nwere polarized.

Ngosipụta modulator
Mgbe ejikọtara ya na ngwa anya ndị ọzọ, ọkachasị na polarizers, enwere ike iji igbe Pockels maka ụdị mgbanwe ndị ọzọ. Igwe njupụta nke dị na Figure 2 na-eji igbe Pockels gbanwee ọnọdụ polarization, wee jiri polarizer mee mgbanwe mgbanwe na ọnọdụ polarization ka ọ bụrụ mgbanwe na njupụta na ike nke ọkụ a na-ebufe.
Ụfọdụ ngwa ngwa eletrọ-optic modulators gụnyere:
Ịgbanwe ike nke ọkụ laser, dịka ọmụmaatụ, maka mbipụta laser, ndekọ data dijitalụ dị elu, ma ọ bụ nkwukọrịta ngwa anya dị elu;
Ejiri ya na usoro nkwụsi ike nke laser, dịka ọmụmaatụ, iji usoro Pound-Drever-Hall;
Q na-agbanwe na lasers steeti siri ike (ebe a na-eji EOM mechie resonator laser tupu radieshon pulsed);
Mkpọchi ọnọdụ na-arụ ọrụ (EOM modulation cavity mfu ma ọ bụ akụkụ nke ìhè njem okirikiri, wdg);
Ịtụgharị mkpụrụ akụ n'ime ndị na-atụtụ pulse, nzaghachi nzaghachi dị mma na lasers tilting.