Optical modulator yog dab tsi?

Optical modulator yog dab tsi?

Optical modulatorFeem ntau siv los tswj cov khoom ntawm cov kab teeb ci, xws li cov kab teeb laser. Cov cuab yeej tuaj yeem tswj xyuas cov khoom ntawm cov nqaj, xws li lub zog kho qhov muag lossis theem. Modulator raws li qhov xwm txheej ntawm cov kab hluav taws xob modulated hu uasiv zog modulator, theem modulator, polarization modulator, spatial Optical modulator, thiab lwm yam. Ntau hom modulators tuaj yeem siv rau hauv kev sib txawv, xws li kev sib txuas lus fiber ntau, cov khoom siv, Q-hloov lossis hom-xauv lasers, thiab ntsuas qhov muag pom.

Optical modulator hom

Muaj ntau ntau hom modulators:

1. Acousto-optic modulator yog ib qho modulator raws li cov nyhuv acousto-optic. Lawv siv los hloov lossis hloov kho tsis tu ncua ntawm lub amplitude ntawm lub laser beam, hloov lub teeb zaus, los yog hloov cov kev taw qhia ntawm qhov chaw.

2. Covelectro-optic modulatorsiv cov nyhuv electro-optic hauv npuas Kerrs lub thawv. Lawv tuaj yeem hloov kho lub xeev polarization, theem, lossis lub zog hluav taws xob, lossis siv rau kev rho tawm cov mem tes raws li tau hais hauv ntu ntawm ultrashort pulse amplifiers.

3. Ib qho hluav taws xob nqus hluav taws xob yog lub zog siv hluav taws xob siv rau ntawm cov ntaub ntawv xa tawm hauv kev sib txuas lus fiber ntau.

(4) Interference modulators, xws li Mach-Zehnder modulators, feem ntau yog siv nyob rau hauv photonic integrated circuits rau kho qhov muag cov ntaub ntawv kis tau tus mob.

5. Fiber optic modulators tuaj yeem ua raws li ntau yam kev cai. Nws tuaj yeem yog cov khoom siv fiber ntau optic tiag tiag, lossis nws tuaj yeem yog lub cev tivthaiv uas muaj fiber ntau pigtails.

6. Liquid crystal modulator yog tsim rau daim ntawv thov rau cov khoom siv kho qhov muag lossis pulse shaper. Lawv kuj tuaj yeem siv los ua spatial light modulators, txhais tau hais tias kev sib kis sib txawv nrog qhov chaw, uas tuaj yeem siv rau hauv cov khoom siv.

7. Lub modulation disk tuaj yeem hloov pauv lub zog ntawm lub nqaj, uas yog siv rau hauv qee qhov kev ntsuas kho qhov muag (xws li siv lub ntsuas phoo hauv amplifiers).

8. Micromechanical modulators (micromechanical systems, MEMS) xws li silicon-raws li lub teeb li qub thiab ob-dimensional daim iav arrays yog ib qho tseem ceeb tshwj xeeb hauv cov duab projection.

9. Bulk optical modulators, xws li electro-optical modulators, tuaj yeem siv thaj tsam loj loj thiab tuaj yeem siv rau cov xwm txheej siab. Fiber coupled modulators, feem ntau waveguide modulators nrog fiber ntau pigtails, yog ib qho yooj yim rau integrate rau hauv fiber optic systems.

cov

Kev siv Optical modulator

Optical modulators muaj ntau yam kev siv hauv ntau qhov chaw. Cov hauv qab no yog cov ntawv thov tseem ceeb ntawm Optical modulators thiab lawv cov kev siv tshwj xeeb:

1. Kev sib txuas lus kho qhov muag: Hauv kev sib txuas lus kho qhov muag, optical modulators yog siv los hloov kho qhov amplitude, zaus thiab theem ntawm cov teeb liab kho qhov muag kom xa cov ntaub ntawv. Nws yog feem ntau siv hauv cov kauj ruam tseem ceeb xws li kev hloov pauv photoelectrical, kho qhov muag teeb liab hloov kho thiab demodulation . Electro-optic modulators yog qhov tseem ceeb tshwj xeeb hauv kev sib txuas lus kho qhov muag kub ceev, uas yog siv los hloov cov teeb liab hluav taws xob rau hauv cov teeb liab kho qhov muag thiab paub txog cov ntaub ntawv encoding thiab xa mus. Los ntawm kev hloov kho qhov siv los yog theem ntawm cov teeb liab kho qhov muag, kev ua haujlwm ntawm lub teeb hloov, kev tswj tus nqi tswj thiab cov teeb liab hloov pauv tuaj yeem ua tiav

2. Optical sensing: Lub optical modulator tuaj yeem paub qhov kev ntsuas thiab kev saib xyuas ntawm ib puag ncig los ntawm kev hloov kho cov yam ntxwv ntawm cov teeb liab kho qhov muag. Piv txwv li, los ntawm kev hloov pauv theem lossis amplitude ntawm lub teeb, fiber ntau optic gyroscopes, fiber ntau optic siab sensors, thiab lwm yam.

3. Optical cia thiab ua: Optical modulators yog siv rau optical cia thiab kho qhov muag daim ntaub ntawv. Hauv kev nco kho qhov muag, optical modulators tuaj yeem siv los sau thiab nyeem cov ntaub ntawv mus rau hauv thiab tawm ntawm cov xov xwm kho qhov muag. Hauv kev kho qhov muag, qhov kho qhov muag modulator tuaj yeem siv rau kev tsim, lim, hloov kho thiab demodulation ntawm cov teeb liab kho qhov muag

4. Optical imaging: optical modulators yuav siv tau los hloov cov theem thiab amplitude ntawm ib lub teeb ntawm lub teeb, yog li hloov cov yam ntxwv ntawm daim duab nyob rau hauv optical imaging. Piv txwv li, lub teeb teb modulator tuaj yeem siv ob-dimensional theem modulation los hloov qhov focal ntev thiab tsom qhov tob ntawm lub teeb.

5. Optical suab tswj: Lub optical modulator tuaj yeem tswj qhov siv thiab zaus ntawm lub teeb, yog li txo lossis txo cov suab nrov hauv qhov kho qhov muag. Nws tuaj yeem siv rau hauv optical amplifiers, lasers thiab fiber ntau optic kis tau tus mob los txhim kho lub teeb liab-rau-suab nrov piv thiab kev ua haujlwm ntawm lub cev.

6. Lwm yam kev siv: electro-optical modulators kuj siv nyob rau hauv spectral tsom xam, radar systems, kho mob thiab lwm yam teb. Nyob rau hauv spectroscopy, ib qho electro-optical modulator tuaj yeem siv los ua ib feem ntawm qhov kho qhov muag spectrum analyzer rau spectral tsom xam thiab ntsuas. Nyob rau hauv radar system, electro-optic modulator yog siv rau cov teeb liab modulation thiab demodulation. Hauv kev kuaj mob, electro-optic modulators yog siv los kho qhov muag pom thiab kho.