N’chifukwa chiyani makina amphamvu kwambiri a fiber optic amakhala ndi zotsatira zosalunjika?

Chifukwa chiyanimakina amphamvu kwambiri a fiber opticKodi zimakhala zosavuta kukhudzidwa ndi zotsatira zosakhala za mzere?

In makina a fiber optic, mavuto ambiri samachitika kawirikawiri pamene mphamvu ya magetsi ili yochepa, koma mphamvu ikawonjezeka, mwadzidzidzi imaonekera kapena kutayika mphamvu, monga kufalikira kwa ma spectral, kusakhazikika kwa mphamvu, kusokoneza ma signal, ndi kuchepa kwa magwiridwe antchito a makina. Zochitika izi nthawi zambiri zimayambitsidwa ndi mawu ofunikira: zotsatira zosalunjika. Chifukwa chake funso ndi lakuti: nchifukwa chiyani ikalowa mu mphamvu yayikulu, makina a fiber optic amakhala ndi mavuto osalunjika?
1, Zifukwa zofunika kwambiri za zotsatira zosagwirizana
Zipangizo za fiber optic (quartz) zokha zimakhala ndi makhalidwe osalunjika, makamaka omwe amaonekera ngati chizindikiro cha refractive chomwe chimasintha ndi mphamvu ya kuwala (Kerr effect). Pa mphamvu yochepa, zotsatira izi zimakhala zofooka kwambiri ndipo sizingatchulidwe; Koma mphamvu ikawonjezeka, mphamvu ya kuwala imawonjezeka ndipo mphamvu yosalunjika imawonjezeka kwambiri.
2, Zinthu zofunika kwambiri pakukulitsa zotsatira zopanda mzere pansi pa mphamvu yayikulu
Kuwala kwakukulu kwambiri: Dera la malo owonetsera kuwala ndi laling'ono kwambiri (nthawi zambiri makumi a μ m²), ndipo ngakhale mphamvu yonse siili yokwera, mphamvu ya kuwala imakhala yokwera kale. Zotsatira zosakhala za mzere zimakhudzana mwachindunji ndi mphamvu ya kuwala (m'malo mwa mphamvu yonse), ndipo pamene mphamvu ikuwonjezeka, mphamvu ya kuwala imawonjezeka mofulumira, ndipo zotsatira zosakhala za mzere zimawonjezeka moyenerera.
Kutalika kwa ntchito: Kuwala mu ulusi wa kuwala kumatha kufalikira kwa mamita angapo mpaka makilomita angapo, ndipo zotsatira zosakhala za mzere zimapitirirabe kusonkhana panthawi yonse yofalitsa, zomwe pamapeto pake zimakhala ndi zotsatira zazikulu. Mphamvu ya zotsatira zosakhala za mzere ikhoza kumvedwa ngati yofanana ndi mphamvu ya kuwala kochulukitsidwa ndi kutalika kwa kufalitsa.
3, Zotsatira Zachizolowezi Zosakhala Zam'mbali ndi Mawonekedwe Awo
Kusintha kwa gawo lodziyimira pawokha (SPM): Kusintha kwa mphamvu ya kuwala kumayambitsa kusintha kwa refractive index, zomwe zimapangitsa kusintha kwa gawo ndi kufalikira kwa spectral, zomwe zimaonekera ngati kufalikira kwa pulse ndi kufalikira kwa spectral.
Kufalikira kwa Brillouin Kolimbikitsidwa (SBS): Kumayambitsidwa mosavuta pansi pa mzere wopapatiza komanso mphamvu zambiri, ndi malire omveka bwino omwe angapangitse kufalikira kumbuyo, kuchepetsa mphamvu yotumizira, ndikuyambitsa kugwa mwadzidzidzi kapena kusakhazikika kwa mphamvu yotulutsa.
Kufalikira kwa Raman (SRS): Kumawonekera mu ulusi wamphamvu kwambiri kapena wautali, womwe umadziwika ndi kusamutsa mphamvu kupita ku mafunde ataliatali komanso kusintha kwa kapangidwe ka ma spectral.
4, Chifukwa chomwe vutoli silikuwonekera pa mphamvu yochepa
Zotsatira zosakhala za mzere zimakhala ndi makhalidwe oyambira komanso makhalidwe okulira osayambira. Zotsatira zake zimakhala zofooka kwambiri ndipo zimakhala zovuta kuzisonkhanitsa pa mphamvu yochepa; Mphamvu ikapitirira malire, zotsatira zake zimawonjezeka mofulumira ndipo zimaonekera mwadzidzidzi, zomwe zimafotokoza za "mavuto omwe amawonekera mwadzidzidzi mphamvu ikangokwera" mu uinjiniya.
5, Zotsutsana zazikulu ndi njira zothanirana ndi mavuto mu uinjiniya
Makina amphamvu kwambiri amafunika kuletsa zotsatira zosakhala za mzere pamene akuwonjezera mphamvu. Njira zodziwika bwino zauinjiniya ndi izi:
Kuonjezera malo a malo owonetsera kuwala kuti muchepetse mphamvu ya kuwala
Fupikitsani nthawi yogwira ntchito
Wonjezerani m'lifupi mwa mzere kuti muchepetse SBS
Konzani kapangidwe ka makina
Lingaliro lalikulu ndi kuchepetsa mphamvu ya kuwala pa voliyumu iliyonse kapena kuchepetsa zotsatira zosakanikirana zomwe sizili mzere.
Mapeto
Mphamvu yayikulukuwala kwa fiberMachitidwewa amakhala ndi zotsatira zosalunjika, ndipo chifukwa chachikulu ndichakuti mphamvu yayikulu ya kuwala ndi mtunda wautali wogwirira ntchito mu ulusi zimakulitsa mawonekedwe osalunjika a chinthucho. Zotsatira zosalunjika zimasonkhana ndi mphamvu ndi kutalika, ndipo zimaonekera mwachangu zitadutsa malire. Chifukwa chake, kuwongolera mphamvu ya kuwala ndi kutalika kogwira mtima pakupanga makina ndiye chinsinsi choletsa kusalunjika.