Qaabka kaliya ee fiber: ubucda galaas dhexe aad ayuu u dhuuban yahay (dhexroorka xudunta u ah guud ahaan waa 9 ama 10) μm), hal qaab oo fiber indhaha ah oo kaliya ayaa la kala qaadi karaa.
Kala firdhinta intermodal ee fiber-ka-hal-habka ah waa mid aad u yar, taas oo ku habboon isgaarsiinta fog, laakiin sidoo kale waxaa jira kala-baxa walxaha iyo fidinta waveguide.Sidan oo kale, fiber-ka-hal-qaabku wuxuu leeyahay shuruudo sare oo loogu talagalay ballaca spectral iyo xasilloonida isha iftiinka, taas oo ah, ballaca muraayadda waa inuu ahaado mid cidhiidhi ah xasilooniduna waa inay noqotaa mid wanaagsan.
Later, waxaa la ogaaday in 1.31 μ At M wavelength, kala firidhsan walxaha iyo waveguide kala firidhsan fiber hal-mode yihiin togan iyo taban, iyo cabbirku waa isku mid.Marka, 1.31 μM gobolka hirarka wuxuu noqday daaqad shaqo oo aad ugu habboon isgaarsiinta fiber indhaha, sidoo kale waa kooxda ugu weyn ee shaqada ee nidaamka isgaarsiinta fiber indhaha wax ku ool ah 1.31μM xuduudaha ugu muhiimsan ee fiber hal-mode caadiga ah waxaa go'aamiya ITU-T Talada G652, sidaas darteed fiber-ka noocan ah waxa kale oo loo yaqaan G652 fiber.
Marka la barbar dhigo fibre-gaab multimode ah, fiber-ka-hal-halku wuxuu taageeri karaa fogaanta gudbinta dheer.100Mbps Ethernet iyo 1G gigabit network, fiber hal-mode waxa ay taageeri kartaa fogaanta gudbinta ee ka badan 5000m.
Marka laga eego dhinaca qiimaha, sababtoo ah transceiver indhaha waa mid aad qaali u ah, kharashka isticmaalka hal-hab fiber fiber indhaha ayaa noqon doona mid ka sarreeya kan cable fiber indhaha multi-mode.
Qaybinta tusmada dib-u-celinta waxay la mid tahay tan fiber-ka mutant, dhexroorka xuduntuna waa 8 ~ 10 μm oo keliya.Iftiinku wuxuu ku faafiyaa dhidibka dhexe ee xudunta fiber-ka oo qaab toosan ah.Sababtoo ah fiber-ka noocaan ah wuxuu gudbi karaa oo keliya hal qaab (hoos u dhac ku yimaadda laba dawladood oo polarisation ah), waxaa loo yaqaan fiber-hal-qaab, qalloocintiisuna aad bay u yar tahay.
Sharaxaada "fiber indhaha ee hal-habka ah" ee suugaanta akadeemiyadeed: guud ahaan, marka V uu ka yar yahay 2.405, hal mowjad oo kaliya ayaa dhex mara fiber-ka indhaha, sidaas darteed waxaa loo yaqaan 'hal-mode fiber optical fiber'.Xuddunta waa mid aad u dhuuban, oo ku saabsan 8-10 microns, iyo kala firdhisanaanta habku waa mid aad u yar.Qodobka ugu muhiimsan ee saameeya ballaca band gudbinta ee fiber indhaha waa kala firidhsan kala duwan, iyo kala firidhsan hab waa kuwa ugu muhiimsan, iyo kala firidhsan ee fiber indhaha hal-mode waa yar yahay, Sidaa darteed, iftiinka waxaa lagu kala qaadi karaa fogaan dheer in soo noqnoqda ballaaran. band.
Fiber indhaha ee hal-habka ah ayaa leh dhexroor xudun ah oo ah 10 microns, kaas oo u oggolaan kara gudbinta alwaax-hal-mode oo yareynaya xaddidaadda xajmiyada iyo kala firdhinta modal.Si kastaba ha ahaatee, iyadoo ay ugu wacan tahay dhexroorka xudunta yar ee fiber indhaha hal-mode, way adag tahay in la xakameeyo gudbinta alwaax, sidaas darteed waxay u baahan tahay laser aad u qaali ah sida isha iftiinka, iyo xaddidaadda ugu weyn ee fiber indhaha hal-mode been ku kala firdhiso walxaha, Single mode cable inta badan waxay isticmaashaa laysarka si ay u hesho xajmi sare.Sababtoo ah LED waxay soo saari doontaa tiro badan oo ilo iftiin ah oo leh xajmiyo kala duwan, shuruudaha kala firdhinta walxaha waa mid aad muhiim u ah.
Marka la barbar dhigo fibre-gaab multimode ah, fiber-ka-hal-halku wuxuu taageeri karaa fogaanta gudbinta dheer.100Mbps Ethernet iyo 1G gigabit network, fiber hal-mode waxa ay taageeri kartaa fogaanta gudbinta ee ka badan 5000m.
Marka laga eego dhinaca qiimaha, maadaama transceiver indhaha uu aad qaali u yahay, qiimaha isticmaalka hal-hab fiber optic fiber wuxuu noqon doonaa mid ka sarreeya kan fiilada fiber-ka ee qaab-badan.
Hal qaab fiber (SMF)
Marka la barbar dhigo fiber multimode, dhexroor xudunta u ah fiber-hal-mode aad u khafiif ah, kaliya 8 ~ 10 μm. Sababtoo ah hal hab oo kaliya ayaa la kala qaadaa, ma jiro kala firdhiso inter mode, kala firdhiso wadarta yar yar iyo bandwidth ballaaran.Fiber qaab halbeeg ah ayaa loo isticmaalaa 1.3 ~ 1.6 μ Gobolka mawjadda dhererka ee M, iyada oo loo marayo naqshadaynta ku habboon ee qaybinta index refractive ee fiber indhaha iyo xulashada alaabta saafiga ah ee sare si loogu diyaariyo daboolka 7 jeer ka weyn xudunta, khasaaraha ugu yar iyo kala firdhinta ugu yar ayaa la gaari karaa isku mar kooxdan.
Fiber indhaha oo hal qaab ah waxa loo adeegsadaa nidaamka isgaadhsiinta ee fogaanta iyo awooda sare leh ee fiber indhaha, shabakadda deegaanka fiber indhaha iyo dareemayaasha fiber indhaha ee kala duwan.
Waqtiga boostada: Mar-08-2022