Litaba

1. Hlalosa likarolo tsa optical fibers.

A: Fiber ea optical e na le likarolo tse peli tsa motheo: mokokotlo le sekoahelo se entsoeng ka lisebelisoa tsa optical tse bonaletsang le lera la ho roala.

2. Ke lintlha life tsa motheo tse hlalosang litšobotsi tsa phetiso ea melapo ea optical fiber?

A: ho kenyelletsa tahlehelo, ho hasana, bandwidth, cutoff wavelength, bophara ba tšimo ea mode, joalo-joalo.

3. Lisosa tsa optical fiber attenuation ke life?

A: Optical fiber attenuation e bolela ho fokotseha ha matla a optical pakeng tsa likarolo tse peli tsa sefapano sa fiber optical, e amanang le bolelele ba maqhubu.Lisosa tse ka sehloohong tsa attenuation ke ho hasana, ho monya le tahlehelo ea mahlo ka lebaka la lihokelo le lihokelo.

4. Coefficient ea attenuation ea fiber optical e hlalosoa joang?

A: E hlalosoa ke attenuation ka bolelele ba yuniti ea fiber e ts'oanang ka boemo bo tsitsitseng (dB / km).

5. Litahlehelo tsa ho kenya ke eng?

A: Ho fokotseha ho bakoang ke ho kenngoa ha motsoako oa optical (joaloka sehokelo kapa sehokelo) moleng oa phetiso ea optical.

6. Bophara ba bandwidth ea fiber ea optical bo amana le eng?

A: bandwidth ea fiber optical e bua ka maqhubu a modulation moo amplitude ea matla a optical e fokotsoang ka 50% kapa 3dB ho tloha ho amplitude ea maqhubu a zero mosebetsing oa ho fetisa oa optical fiber.Bophahamo ba fiber ea optical bo batla bo lekana ka tsela e fapaneng le bolelele ba eona, 'me sehlahisoa sa bolelele ba bandwidth se lula se le teng.

7. Ho na le mefuta e mekae ea khasa ka har'a fiber ea optical?Ka eng?

A: Phatlalatso ea fiber ea optical e bolela ho atolosoa ha tieho ea sehlopha ka har'a fiber ea optical, ho kenyelletsa le mokhoa oa ho hasana, ho hasana ha thepa le ho hasana ha sebopeho.E itšetlehile ka litšobotsi tsa mohloli oa leseli le fiber optical.

8. Mokhoa oa ho hlalosa litšoaneleho tsa ho hasana tsa phatlalatso ea lets'oao ka fiber ea optical?

Karabo: e ka hlalosoa ka likarolo tse tharo tsa 'mele: ho atolosa pulse, optical fiber bandwidth le optical fiber dispersion coefficient.

9. Cuoff wavelength ke eng?

K: E bua ka bolelele bo bokhuts'oane ka ho fetesisa ba fiber ea optical e ka tsamaisang mokhoa oa mantlha feela.Bakeng sa likhoele tsa mofuta o le mong, bolelele ba maqhubu a cutoff bo tlameha ho ba bokhuts'oane ho feta bolelele ba maqhubu a khanya e fetisoang.

10. Ho hasana ha fiber ea optical ho na le phello efe mosebetsing oa tsamaiso ea puisano ea fiber?

A: Ho hasana ha fiber ho tla atolosa pulse ea optical ha e ntse e tsamaea ka fiber.E ama boholo ba sekhahla sa phoso, le bolelele ba sebaka sa phetiso, le boholo ba lebelo la sistimi.

Ho atolosoa ha maqhubu a optical ka har'a likhoele tsa optical tse bakoang ke lebelo le fapaneng la lihlopha tsa maqhubu a fapaneng a maqhubu likarolong tsa spectral tsa mohloli oa leseli.

11. Ho hasana ka morao ke eng?

A: Backscattering ke mokhoa oa ho lekanya attenuation ka bolelele ba fiber ea optical.Boholo ba matla a optical ka har'a faeba a hasoa pele, empa a manyenyane a hasana ka morao ho lebone.Nako ea nako ea ho khutlela morao e ka bonoa ka ho sebelisa sesepa sa optical sesebelisoa sa luminescence.Ka lehlakoreng le leng, eseng feela bolelele le ho fokotseha ha fiber e kopantsoeng e ka lekanyetsoang, empa hape le ho se tloaelehe ha sebaka seo, breakpoint le tahlehelo ea matla a optical e bakoang ke sehokelo le sehokelo se ka lekanyetsoa.

12. Molao-motheo oa teko ea optical time domain reflectometer (OTDR) ke ofe?E sebetsa joang?

Karabo: OTDR e ipapisitse le leseli le khutlelang morao le molao-motheo oa ho bonahatsa Fresnel, ha tšebeliso ea khanya ea leseli ka fiber optical attenuation ea leseli la backscatter ho fumana boitsebiso, e ka sebelisoa ho lekanya ho fokotseha ha optical, splicing tahlehelo, fiber optic fault point positioning le ho utloisisa boemo. kabo ea tahlehelo ka bolelele ba fiber optical, joalo-joalo, ke karolo ea bohlokoa ea kaho, lisebelisoa tsa tlhokomelo le tlhokomelo.Mekhahlelo ea eona e ka sehloohong e kenyelletsa mefuta e matla, kutloisiso, tharollo, nako ea ho lekanya le sebaka se foufetseng.