Mokhoa oa ho khetha pakeng tsa 780nmmodulator ea mohatole modulator ea matla?
Sebakeng sa maqhubu a bohlokoa a 780nm, tšebelisano pakeng tsa leseli le taba e ruile haholo - ebang ke phetoho ea mola oa D2 ea liathomo tsa cesium kapa tsamaiso ea quantum state ea liathomo tsa rubidium, taolo e nepahetseng ea laser sebakeng sena sa maqhubu a malelele ke ea bohlokoa haholo. Sesebelisoa sa mantlha se finyellang molao ona ke modulator ea electro-optic (Modulator ea EOMHar'a bona, leha ka bobelimodulator ea mohato oa electro-opticle electro-opticmodulator ea matlaBa karolo ea lelapa la lithium niobate electro-optic modulation, ba na le tsebo ea bona e ikhethang 'me ba etsa mesebetsi ea bona.
Modulator ea phase ea electro optic, joalo ka ha lebitso le bontša, e shebane haholo le taolo e nepahetseng ea phase ea matšoao a optical. Sebopeho sa eona se bonolo haholo - leqhubu le le leng le kopantsoe le li-electrode tse peli mahlakoreng ka bobeli, 'me index ea refractive ea kristale e fetoloa ka phello ea electro-optic, ka hona e fetola phase ea leqhubu la leseli. Modulator ea phase ea 780nm ea letoto la ROF-PM e sebelisa theknoloji e tsoetseng pele ea phapanyetsano ea proton 'me e na le litšobotsi tse ntle tse kang tahlehelo e tlase ea ho kenya (boleng bo tloaelehileng ba 2.8dB), bandwidth e phahameng ea modulation (10GHz), le motlakase o tlase oa halofo ea maqhubu (boleng bo tloaelehileng ba 2.0V). E sebeletsa haholo-holo masimo a litsamaiso tsa puisano ea optical ea sebaka, referense ea nako ea athomo ea cesium, ho atolosa ha spectral, le interferometry - lioacheng tsa optical le litekanyo tse nepahetseng, li-modulator tsa phase ke "bahale ba ka morao ho liketsahalo" ba ho notlela le ho tsitsisa maqhubu.
Themodulator ea matla a electro-optice ikarabella bakeng sa ho laola matla (amplitude) a leseli. E ipapisitse le sebopeho sa Mach Zehnder interferometer (MZI): lets'oao la optical le arotsoe ka litsela tse peli, tse fetang modulation ea phase ebe li kopana hape, li fihlella modulation ea matla ka litlamorao tsa tšitiso. Modulator ea matla a letoto la ROF-AM-07 e boetse e sebelisa theknoloji ea phapanyetsano ea proton, ka tahlehelo ea ho kenya e ka tlase ho 3dB, karolelano ea ho fela ha switch ea ho fihlela ho 23dB, le motlakase o tloaelehileng oa halofo ea maqhubu a 3V feela qetellong ea RF. Ts'ebeliso ea eona e tloaelehileng e akaretsa puisano ea optical ea sebaka, quantum optics, lijenereithara tsa pulse, le masimo a mang - litekong tsa tlhahisoleseling ea quantum, li-modulator tsa matla hangata li sebelisoa ho "seha" li-laser tse tsoelang pele ho li-pulse tsa optical tsa nanosecond level.
Ho ka thoe modulator ea mohato ke setsebi se ntlafatsang mohato oa maqhubu a leseli hantle, ha modulator ea matla e le molaoli ea laolang matla a leseli habonolo. Tse peli lia tlatsana, ka bobeli li tšehetsa likhoele tsa mohatla tse etselitsoeng FC/PC le FC/APC, ka ts'ebetso e tsitsitseng mochesong o moholo oa -10 ℃ ~ 60 ℃, li koahela litsela tse ngata tsa liteko tsa optical ho tloha lioacheng tsa motheo tsa athomo ho ea ho li-optical tsa quantum tse tsoetseng pele, li fana ka tharollo e kopaneng ea modulation ea optical bakeng sa lipatlisiso tsa sehlopha sa 780nm.
Nako ea poso: Phuptjane-29-2026