Ungakhetha njani phakathi kwe-780nm phase modulator kunye ne-intensity modulator?

Indlela yokukhetha phakathi kwe-780nmimodyuli yesigabakunye ne-intensive modulator?
Kuluhlu olubalulekileyo lwamaza okukhanya angama-780nm, ukusebenzisana phakathi kokukhanya nezinto kutyebile kakhulu - nokuba kukutshintsha komgca we-D2 weeathom ze-cesium okanye ukuguqulwa kwe-quantum state yeeathom ze-rubidium, ulawulo oluchanekileyo lwe-laser kolu luhlu lwamaza okukhanya luyimfuneko. Isixhobo esiphambili esifezekisa olu lawulo yi-electro-optic modulator (Imodulator ye-EOMPhakathi kwabo, nangona bobabinii-electro-optic phase modulatorkunye ne-electro-opticimodyuli yokuqinaBangamalungu osapho lwe-lithium niobate electro-optic modulation, banezakhono zabo ezizodwa kwaye benza imisebenzi yabo.
I-electro optic phase modulator, njengoko igama lisitsho, igxile kulawulo oluchanekileyo lwesigaba semiqondiso ye-optical. Ulwakhiwo lwayo lulula kakhulu - i-waveguide enye idibene nee-electrode ezimbini kumacala omabini, kwaye i-refractive index ye-crystal itshintshwa nge-electro-optic effect, ngaloo ndlela itshintsha isigaba se-light wave. I-ROF-PM series 780nm phase modulator isebenzisa iteknoloji yotshintshiselwano lwe-proton ephucukileyo kwaye ineempawu ezintle ezifana nokulahleka okuphantsi kokufakelwa (ixabiso eliqhelekileyo le-2.8dB), i-bandwidth ephezulu ye-modulation (10GHz), kunye ne-voltage ephantsi ye-half wave (ixabiso eliqhelekileyo le-2.0V). Isebenza ikakhulu kwiindawo zeenkqubo zonxibelelwano lwe-optical space, i-cesium atomic time reference, i-spectral broadening, kunye ne-interferometry - kwiiwotshi ze-optical kunye nokulinganisa okuchanekileyo, ii-phase modulators "ziiqhawe ezingasemva kweziganeko" zokutshixa kunye nokuzinzisa i-frequency.
Ii-electro-optic intensity modulatorInoxanduva lokulawula amandla okukhanya (amplitude). Isekelwe kwisakhiwo se-Mach Zehnder interferometer (MZI): isignali ye-optical yahlulwe yaba ziindlela ezimbini, ezidlula kwi-phase modulation zize ziphinde zihlangane, zifezekise i-intensity modulation ngokusebenzisa iziphumo zokuphazamiseka. I-ROF-AM-07 series intensity modulator ikwasebenzisa itekhnoloji ye-proton exchange, kunye nelahleko yokufakelwa engaphantsi kwe-3dB, umlinganiselo wokuphela kweswitch ofikelela kwi-23dB, kunye ne-half wave voltage eqhelekileyo ye-3V kuphela kwi-RF end. Izicelo zayo eziqhelekileyo ziquka unxibelelwano lwe-space optical, i-quantum optics, ii-pulse generators, kunye nezinye iindawo - kwiimvavanyo zolwazi lwe-quantum, ii-intensity modulators zihlala zisetyenziselwa "ukusika" ii-laser eziqhubekayo zibe yi-nanosecond level optical pulses.
Kunokuthiwa i-phase modulator ngumculi ococa kakuhle i-phase yamaza okukhanya, ngelixa i-intensity modulator ingumlawuli olawula i-intensity yokukhanya ngokulula. Ezi zimbini ziyahambelana, zombini zixhasa imicu yomsila eyenzelwe wena ye-FC/PC kunye ne-FC/APC, kunye nokusebenza okuzinzileyo kuluhlu olubanzi lobushushu obuyi--10 ℃ ~ 60 ℃, egubungela iindlela ezininzi zovavanyo lwe-optical ukusuka kwiiwotshi ze-atomic ezisisiseko ukuya kwi-quantum optics yanamhlanje, ebonelela ngesisombululo se-optical modulation esidibeneyo sophando lwe-780nm band.