1. Rondedzera zvikamu zve optical fibers.
A: An optical fiber ine zvikamu zviviri zvakakosha: core uye cladding yakagadzirwa ne transparent optical materials uye coating layer.
2. Ndeapi maparamita akakosha anotsanangura maitiro ekutapurirana emitsara yefiber optical?
A: kusanganisira kurasikirwa, kupararira, bandwidth, cutoff wavelength, mode field dhayamita, nezvimwe.
3. Ndezvipi zvikonzero zve optical fiber attenuation?
A: Optical fiber attenuation inoreva kuderedzwa kwesimba remaziso pakati pezvikamu zviviri zvemuchinjikwa zve fiber optical, iyo ine hukama newavelength.Zvikonzero zvikuru zvekudzikisa kupararira, kunyura uye kurasikirwa kwemaziso nekuda kwezvibatanidza uye zvinobatanidza.
4. Ko attenuation coefficient ye optical fiber inotsanangurwa sei?
A: Inotsanangurwa neattenuation pahurefu hweyuniti yeunifomu fiber mune yakatsiga mamiriro (dB / km).
5. Chii chinonzi kurasikirwa kwekuisa?
A: Attenuation inokonzerwa nekuiswa kwechikamu chemaziso (senge chibatanidza kana coupler) mumutsara wekutumira maziso.
6. Chii chinonzi bandwidth ye optical fiber yakabatana nayo?
A: bandwidth yefiber optical inoreva modulation frequency iyo amplitude yesimba remagetsi inoderedzwa ne50% kana 3dB kubva paamplitude ye zero frequency mune yekufambisa basa re optical fiber.Iyo bandwidth yefiber optical inenge yakatarisana nehupamhi hwayo, uye chigadzirwa chehurefu hwehupamhi hunogara huripo.
7. Ndeapi marudzi ekupararira aripo mune optical fiber?Nei?
A: Kupararira kwefiber yemaziso kunoreva kuwedzera kwekunonoka kweboka mufiber yemaziso, kusanganisira kupararira kwemodhiyo, kupararira kwezvinhu uye kupararira kwemaitiro.Izvo zvinoenderana nehunhu hwechiedza sosi uye optical fiber.
8. Nzira yekutsanangura sei maitiro ekupararira kwechiratidzo chekuparadzira mu optical fiber?
Mhinduro: inogona kutsanangurwa nemhando nhatu dzemuviri: pulse wideening, optical fiber bandwidth uye optical fiber dispersion coefficient.
9. Chii chinonzi cutoff wavelength?
A: Zvinoreva kupfupika kwewavelength mune optical fiber inogona kungoitisa iyo yakakosha modhi.Kune imwe-modhi fibers, cutoff wavelength inofanira kuva ipfupi pane wavelength yechiedza chinofambiswa.
10. Ko kuparadzirwa kwefiber optical kunobata sei pakushanda kweoptical fiber communication system?
A: Kupararira kwefiber kuchawedzera iyo optical pulse sezvainofamba nefiber.Inokanganisa saizi yeiyo bit kukanganisa mwero, uye kureba kwenhambwe yekufambisa, uye saizi yekumhanyisa system.
Kuwedzera kwemaoptical pulses mu optical fibers kunokonzerwa neboka rakasiyana-siyana velocities ye wavelengths yakasiyana muzvikamu zvinotarisa zvechiedza chechiedza.
11. Chii chinonzi backscattering?
A: Backscattering inzira yekuyera attenuation pamwe nehurefu hwefiber optical.Mazhinji emagetsi emagetsi ari mufayibha anopararira mberi, asi zvishoma zvawo zvakaparadzirwa kumashure akananga kuchiedza.Iyo nguva yekutenderera yekudzokera kumashure inogona kucherechedzwa nekushandisa iyo optical splitter pane luminescence mudziyo.Pane imwe mugumo, kwete chete kureba uye attenuation yeyakabatana yunifomu fiber inogona kuyerwa, asiwo kusarongeka kwenzvimbo, breakpoint uye optical simba kurasikirwa kunokonzerwa nekonji uye chinongedzo chinogona kuyerwa.
12. Ndeupi mutemo wekuedza we optical time domain reflectometer (OTDR)?Inoita basa rei?
Mhinduro: OTDR yakavakirwa pachiedza chekudzokera shure uye Fresnel reflection musimboti, apo kushandiswa kwechiedza kupararira mu optical fiber attenuation ye backscatter chiedza kuwana ruzivo, inogona kushandiswa kuyera optical attenuation, splicing kurasikirwa, fiber optic fault point positioning uye kunzwisisa chimiro. yekurasikirwa kwekugovera pamwe nehurefu hwefiber optical, nezvimwewo, chikamu chakakosha chefiber optic cable kuvaka, kuchengetedza uye kutarisa maturusi.Iwo makuru ma paramita anosanganisira dynamic range, sensitivity, resolution, kuyerwa nguva uye bofu nzvimbo.
Nguva yekutumira: Jun-29-2022
