Incamake ya bane basanzwe

Incamake ya bane basanzwe

Uru rupapuro rutangiza uburyo bune bwo guhindura (guhindura amplitude ya laser muri nanosekond cyangwa subnanosecond time domain) zikoreshwa cyane muri sisitemu ya fibre laser. Harimo AOM (modulasiyo ya acousto-optique), EOM (modulisiyo ya electro-optique), SOM /SOA(semiconductor light amplification nayo izwi nka semiconductor modulation), naGuhindura laser. Muri bo, AOM,EOM, SOM ni iyindi modulisiyo yo hanze, cyangwa modulisiyo itaziguye.

1. Moderi ya Acousto-optique (AOM)

Guhindura Acousto-optique ni inzira yumubiri ikoresha ingaruka ya acousto-optique kugirango yikoreze amakuru kuri optique. Iyo uhinduye, ibimenyetso byamashanyarazi (amplitude modulation) byabanje gukoreshwa kuri transducer ya electro-acoustic, ihindura ibimenyetso byamashanyarazi mumurima wa ultrasonic. Iyo urumuri rwumucyo runyuze muri acousto-optique, umutwara wa optique urahindurwa kandi ugahinduka ubukana bwahinduwe bwumuvuduko utwara amakuru kubera ibikorwa bya acousto-optique

2. Amashanyarazi(EOM)

Moderi ya electro-optique ni modulator ikoresha ingaruka za electro-optique ya kristu zimwe na zimwe za electro-optique, nka kristu ya lithium niobate (LiNb03), kristu ya GaAs (GaAs) na kristu ya lithium tantalate (LiTa03). Ingaruka ya electro-optique nuko iyo voltage ikoreshejwe kuri kristu ya electro-optique, indangagaciro yo kwangirika ya kristu ya electro-optique izahinduka, bikavamo impinduka mumirasire yumucyo uranga kristu, hamwe no guhindura icyiciro, amplitude, ubukana hamwe na polarisiyasi ya signal ya optique iragaragara.

Igishushanyo: Iboneza bisanzwe bya EOM umushoferi

3. Semiconductor Optical Modulator / Semiconductor optique amplifier (SOM / SOA)

Semiconductor optique amplifier (SOA) isanzwe ikoreshwa mugukwirakwiza ibimenyetso bya optique, ifite ibyiza bya chip, gukoresha ingufu nke, gushyigikira imirongo yose, nibindi, kandi nibindi bizaza muburyo busanzwe bwa optique nka EDFA (Erbium-yuzuye fibre amplifier). Igice cya semiconductor optique (SOM) nigikoresho kimwe na semiconductor optique amplifier, ariko uburyo ikoreshwa iratandukanye gato nuburyo ikoreshwa hamwe na amplifier gakondo ya SOA, hamwe nibipimo byibandaho mugihe ikoreshwa nka a moderi yumucyo itandukanye gato niyakoreshejwe nka amplifier. Iyo ikoreshwa mugukwirakwiza ibimenyetso bya optique, imiyoboro ihamye yo gutwara ibinyabiziga isanzwe itangwa kuri SOA kugirango barebe ko SOA ikorera mukarere k'umurongo; Iyo ikoreshwa muguhindura optique ya optique, yinjiza ibimenyetso bya optique bihoraho kuri SOA, ikoresha amashanyarazi kugirango igenzure amashanyarazi ya SOA, hanyuma igenzure SOA isohoka leta nka amplification / attenuation. Ukoresheje SOA amplification hamwe na attenuation ibiranga, ubu buryo bwo guhindura bwagiye bukoreshwa buhoro buhoro kuri porogaramu zimwe na zimwe, nka optique ya fibre optique, LiDAR, amashusho yubuvuzi bwa OCT nizindi nzego. Cyane cyane kubintu bimwe bisaba ubunini buringaniye, gukoresha ingufu nigipimo cyo kuzimangana.

4. Birashobora kugaragara ko hariho spike mugitangiriro cya pulse, izanwa no kuruhuka kwabatwara laser. Niba ushaka kubona pulse ya picosekondi 100, urashobora gukoresha iyi spike. Ariko mubisanzwe ntabwo dushaka kugira iyi spike.

Incamake

AOM ibereye imbaraga za optique zisohoka muri watt nkeya kandi ifite imikorere yo guhinduranya inshuro. EOM irihuta, ariko ibinyabiziga bigoye birarenze kandi igipimo cyo kuzimira ni gito. SOM (SOA) nigisubizo cyiza kumuvuduko wa GHz nigipimo kinini cyo kuzimangana, hamwe nimbaraga nke, gukoresha miniaturizasi nibindi biranga. Diode itaziguye nigisubizo gihenze cyane, ariko umenye impinduka mubiranga ibintu. Buri gahunda yo guhindura ibintu ifite ibyiza byayo nibibi, kandi ni ngombwa kumva neza ibisabwa ibisabwa mugihe uhisemo gahunda, kandi ukamenyera ibyiza nibibi bya buri gahunda, ugahitamo gahunda iboneye. Kurugero, mugukwirakwiza fibre sensing, gakondo AOM niyo nyamukuru, ariko mubishushanyo mbonera bya sisitemu nshya, ikoreshwa rya gahunda ya SOA riragenda ryiyongera cyane, muri gahunda zimwe na zimwe z'umuyaga liDAR gahunda gakondo ikoresha ibyiciro bibiri AOM, igishushanyo mbonera gishya kugirango kugabanya ikiguzi, kugabanya ingano, no kunoza igipimo cyo kuzimangana, gahunda ya SOA iremewe. Muri sisitemu y'itumanaho, sisitemu yihuta isanzwe ifata gahunda yo guhindura ibintu, kandi sisitemu yihuta isanzwe ikoresha gahunda ya electro-optique.