Yuav ua li cas yog polarization-tswj fibers
Cov pa fiber ntau optical yog tsim los ntawm cov khoom siv quartz iav. Tom qab ntau xyoo ntawm txoj kev loj hlob, cov txheej txheem txheej txheem tau pib ua tiav thiab siv dav. Kev tsim cov txheej txheem ntawm cov pa fiber ntau yog hu ua ob-kauj ruam txheej txheem, uas yog: kev npaj ua ntej thiab kos duab fiber ntau. Cov txheej txheem ntawm polarization-tswj fiber ntau yog qhov nyuaj, tab sis nws kuj yuav tsum tau pib nrog kev npaj ntawm preforms.
01 Chemical Vapor Deposition (CVD)
Cov txheej txheem tshuaj vapor deposition (Chemical Vapor Deposition) txheej txheem siv lub quartz iav raj raws li cov khoom siv hauv paus (liner), thiab cov roj uas xaiv tau yog nqa los ntawm oxygen mus rau hauv lub khob iav quartz, thiab cov nplaim taws mus rau oxyhydrogen yog siv los txav hauv ob sab phlu. cev. Lub raj cua sov, ua rau cov tshuaj tiv thaiv thiab sintering cov khoom tso rau hauv lub raj (vapor deposition). Tus naj npawb ntawm cov khaubncaws sab nraud povtseg nce, phab ntsa thickness nce, thiab lub puab txoj kab uas hla txo; Thaum kawg, qhov hollow ib feem ntawm lub iav raj yog "rub tawm" (thermally shrunk) los ntawm kev kho lub siab los ua ib tug khoom iav pas nrig, thiab kev npaj ntawm preform yog tiav.
02 Polarization tswj fiber ntau preform
Yog tias nws yog ib hom fiber ntau hom, tom qab lub preform yog fabricated los ntawm cov tshuaj vapor deposition, lub tes tsho thiab cov fiber yog kos, tab sis cov polarization-tswj fiber ntau tsis yog li yooj yim.
Noj panda polarization-tswj fiber ntau ua piv txwv, ntxiv rau kev npaj ntawm preform, nws tseem yuav tsum tau npaj cov tub ntxhais pas nrig, doping lub pas nrig kev nyuaj siab, thiab punch qhov nyob rau hauv lub preform. Lub optical fiber yuav tsis tau kos kom txog thaum lub tes tsho sib dhos ntawm tag nrho cov preforms tiav.
03 Fiber daim duab
Tom qab qhov kev npaj ntawm optical fiber preform tiav lawm, nws yuav tsum tau muab ntxuav thiab tshuaj xyuas ua ntej loaded rau hauv cov duab ntauwd. Lub optical fiber ntau kos duab yog tsim nyob rau hauv ib qho chaw huv si, feem ntau muaj qhov siab ntawm ntau tshaj 10 m, thiab qee qhov kev sib txuas lus optical fiber ntau kos duab tuaj yeem ncav cuag kaum metres siab.
Kev kos duab ntawm polarization-tswj fiber ntau yog qhov txawv me ntsis ntawm qhov zoo tib yam ntawm ib hom fiber ntau, thiab qee qhov kev sib koom ua ke tau muab ntxiv, thiab cov txheej txheem ntawm kev kos duab fiber ntau yuav luag tib yam. Lub preform yog maj mam muab nkag rau hauv lub qhov cub kub kub, lub khob preform softens, thiab hauv qab kawg tee los ua ib lub khob. Cov iav hauv qab yog sai sai "reeled", thiab cov fiber ntau optical yog tsim tom qab lub sab nraud txoj kab uas hla yog ruaj khov.
