Selelekela se sekhutšoanyane sa lasermodulatortheknoloji
Laser ke leqhubu la motlakase le nang le maqhubu a phahameng, ka lebaka la ho momahana ha lona hantle, joalo ka maqhubu a tloaelehileng a motlakase (a kang a sebelisoang seea-le-moeeng le thelevisheneng), e le leqhubu la motlakase le fetisang tlhahisoleseling. Ts'ebetso ea ho kenya tlhahisoleseling ho laser e bitsoa modulation, 'me sesebelisoa se etsang ts'ebetso ena se bitsoa modulator. Ts'ebetsong ena, laser e sebetsa e le mojari, ha leqhubu la motlakase le nang le maqhubu a tlase le fetisang tlhahisoleseling le bitsoa leqhubu le fetotsoeng.
Hangata ho feto-fetoha ha laser ho aroloa ka mekhoa e 'meli ea ho feto-fetoha ha laser le ho feto-fetoha ha eona ka ntle. Ho feto-fetoha ha laser ka hare: ho bolela ho feto-fetoha ha laser ts'ebetsong ea ho feto-fetoha ha laser, ke hore, ka ho fetola lets'oao ho fetola liparamente tsa ho feto-fetoha ha laser, ka hona ho ama litšobotsi tsa tlhahiso ea laser. Ho na le mekhoa e 'meli ea ho feto-fetoha ha laser ka hare: 1. Laola ka kotloloho phepelo ea matla a pompa ea laser ho lokisa matla a tlhahiso ea laser. Ka ho sebelisa lets'oao ho laola phepelo ea matla ea laser, matla a tlhahiso ea laser a ka laoloa ke lets'oao. 2. Lintho tsa modulation li beoa ka har'a resonator, 'me litšobotsi tsa' mele tsa likarolo tsena tsa modulation li laoloa ke lets'oao, ebe liparamente tsa resonator lia fetoloa ho fihlela modulation ea tlhahiso ea laser. Molemo oa modulation ea ka hare ke hore katleho ea modulation e phahame, empa bothata ke hore hobane modulator e fumaneha ka har'a cavity, e tla eketsa tahlehelo ka har'a cavity, e fokotse matla a tlhahiso, 'me bandwidth ea modulator le eona e tla fokotsoa ke passband ea resonator. Modulation ea Kantle: e bolela hore kamora ho thehoa ha laser, modulator e beoa tseleng ea optical ka ntle ho laser, 'me litšobotsi tsa' mele tsa modulator lia fetoloa ka lets'oao le fetotsoeng, 'me ha laser e feta ka har'a modulator, paramethara e itseng ea leqhubu la leseli e tla fetoloa. Melemo ea modulation ea ka ntle ke hore matla a tlhahiso ea laser ha a amehe 'me bandwidth ea molaoli ha e lekanyetsoe ke passband ea resonator. Bothata ke bokhoni bo tlase ba modulation.
Modulation ea laser e ka aroloa ka modulation ea amplitude, modulation ea maqhubu, modulation ea mekhahlelo le modulation ea matla ho latela litšobotsi tsa eona tsa modulation. 1, modulation ea amplitude: modulation ea amplitude ke oscillation eo amplitude ea carrier e fetohang ka molao oa lets'oao le fetotsoeng. 2, modulation ea maqhubu: ho fetola lets'oao ho fetola maqhubu a oscillation ea laser. 3, modulation ea mekhahlelo: ho fetola lets'oao ho fetola mohato oa laser oscillation.
Modulator ea matla a motlakase oa electro-optical
Molao-motheo oa phetoho ea matla a electro-optic ke ho hlokomela phetoho ea matla ho latela molao-motheo oa tšitiso ea leseli le nang le polarized ka ho sebelisa phello ea electro-optic ea kristale. Tšusumetso ea electro-optical ea kristale e bolela ketsahalo ea hore index ea refractive ea kristale e fetoha tlas'a ts'ebetso ea tšimo ea motlakase ea kantle, e leng se fellang ka phapang ea mekhahlelo pakeng tsa leseli le fetang ka kristale ka litsela tse fapaneng tsa polarization, e le hore boemo ba polarization ba leseli bo fetohe.
Modulator ea mohato oa electro-optic
Molao-motheo oa phetoho ea mohato oa electro-optical: mohato Angle ea ho sisinyeha ha laser e fetoloa ke molao oa ho fetola lets'oao.
Ntle le ho fetolwa ha matla a electro-optic le modulation ya phase ya electro-optic e boletsweng ka hodimo, ho na le mefuta e mengata ya di-modulator tsa laser, tse kang transverse electro-optic modulator, electro-optic traveling wave modulator, Kerr electro-optic modulator, acousto-optic modulator, magnetooptic modulator, interference modulator le spacelight modulator.
Nako ea poso: Phato-26-2024