Yintoni iukuguqulwa kwelaseriteknoloji
Ukukhanya luhlobo lwe-electromagnetic wave ene-frequency ephezulu. Inothungelwano olugqwesileyo kwaye ke, njengamaza e-electromagnetic yangaphambili (afana nonomathotholo kunye nomabonakude), inokusetyenziswa njengesixhobo sokuhambisa ulwazi. Ulwazi "oluthwalwayo" yilaser (kubandakanywa ulwimi, umbhalo, imifanekiso, iimpawu, njl.) Ithunyelwa kumamkeli ngeendlela ezithile zokuhambisa (i-atmosphere, i-optical fibers, njl.), kwaye zichongwe kwaye zibuyiselwe kulwazi lwangaphambili ngummkeli obonakalayo. Inkqubo yokulayisha ulwazi kwilaser ibizwa ngokuba yimodulation, yaye isixhobo esenza le nkqubo sibizwa ngokuba yimodyuli. Phakathi kwabo, i-laser ibizwa ngokuba yi-carrier wave; Ulwazi oluphantsi-frequency oludlala indima yokulawula lubizwa ngokuba ngumqondiso oguquliweyo.
Ukumodareyitha kweLaser kunokwahlulwa kube kukumodareyitha kwangaphakathi kunye nokumodareyitha kwangaphandle.
Ukumodareyitha kwangaphakathi: Kubhekisa ekulayisheni imiqondiso emodyuliweyo ngexesha lenkqubo ye-laser oscillation, oko kukuthi, ukusebenzisa imiqondiso emodyulisiweyo ukuguqula iiparamitha ze-oscillation ye-laser, ngaloo ndlela iguqula iimpawu zokuphuma kwelaser ukufezekisa ukumodareyitha. Iindlela zokuguqulwa kwangaphakathi zibandakanya: 1. Ukulawula ngokuthe ngqo i-laser pump power supply ukufezekisa ubuninzi be-laser output module. Amandla kunye nobukho bemveliso zonke zilawulwa ngumbane. Ukuba uphawu oluza kuhanjiswa lusetyenziselwa ukulawula ukunikezelwa kwamandla e-laser, ukwenza utshintsho lwangoku nge-laser elawulwa ngumqondiso, ngoko i-laser ekhutshwayo iya kulawulwa ngumqondiso. 2. Izinto zokumodareyitha zifakwe ngaphakathi kwi-cavity ye-resonant, kunye neempawu ezibonakalayo ze-modulation elements zilawulwa ngezibonakaliso zokutshintsha, ngaloo ndlela ziguqula iiparitha ze-cavity ye-resonant kunye nokutshintsha iimpawu ze-laser zokuvelisa ukuphumeza ukuguqulwa. Inzuzo yokumodareyitha kwangaphakathi kukusebenza kwayo okuphezulu kokumodareyitha. I-drawback kukuba ekubeni i-modulator ifakwe ngaphakathi kwisigxina, ilingana nokunyusa ilahleko ngaphakathi kwendawo, ukunciphisa amandla okuphuma, kunye ne-bandwidth ye-modulator inqunyelwe yi-passband ye-resonant cavity.
Ukumodareyitha kwangaphandle: Kubhekiselele ekubekweni kwemodyuli kwindlela ye-optical ngaphandle kwelaser emva kokuba i-laser yenziwe, kwaye iimpawu zomzimba zemodyuli zitshintshwa ngumqondiso wokumodareyitha. Xa i-laser idlula kwimodyuli, iparameter ethile yokukhanya kwelanga iya kuguqulwa. Inzuzo yokuguqulwa kwangaphandle kukuba ayichaphazeli amandla okuphuma kwelaser kunye ne-bandwidth ye-generator ayinqunyelwe yi-passband ye-resonant cavity. I-drawback kukusebenza okuphantsi kokumodareyitha.
Ukumodareyitha kweLaser kungahlelwa ngokwemodyuli ye-amplitude, ukumodareyitha rhoqo, ukumodareyitha kwesigaba kunye nokumodareyitha kokuqina, njl. Iimodyuli eziqhelekileyo ezihambelanayo zibandakanyaiimodyuli zesigaba, iimodyuli zokuqina, njalo njaloiimodyuli laser, njengokunqamlezileyoiimodyuli ze-electro-optic, iimodyuli ezihamba nge-electro-optic wave wave, Kerr electro-optic modulators, acousto-optic modulators, magneto-optic modulators, interference modulators and spatial light moduletors, njl.
Ixesha lokuposa: May-13-2025