Nhau - Waveband ye optical fiber

Optical fiber communication inotora chiedza semutakuri weruzivo kutaurirana.Inogona kutapurirwa kuburikidza ne fiber core.Zvisinei, kwete chiedza chese chechiedza chakakodzera kutaurirana.Kurasikirwa kwekutapurirana kunosiyana neyakasiyana waveband yechiedza.Nokuda kwekuwana kurasikirwa kuduku uye kuva nemazvo, masayendisiti anogara achitsvaga chiedza chakakodzera.

850nm Waveband

Mukutanga 1980s, masayendisiti akatanga kuongorora tekinoroji ye optical fiber communication nenzira inoshanda.Multi-mode fiber ndizvo zvavainyanya kudzidza nezvazvo.Iine yakakura fiber cores, muti-modhi fiber inokwanisa kuona imwe fiber kutapurirana kwemuti-modhi mwenje.850nm wavelength mwenje ndiyo yaishandiswa pekutanga.

O Waveband

Pakutanga kwema1990s, single-mode fiber yakatanga kushandiswa zvakanyanya.

Mufananidzo 1

Masayendisiti akaona kuti 1260nm ~ 1360nm waveband light inogona kuwana kushomeka kwechiratidzo uye kurasikirwa kwekutapurirana kunokonzerwa nekupararira kuburikidza nemiedzo.Naizvozvo, vakatumidza izvi waveband light seO-band uye "O" inomirira "Original".Nekuedzwa uye kukanganisa, masayendisiti akawana kuti chiedza chine 1260nm ~ 1625nm chiri zvakare munzvimbo shoma yekurasikirwa uye ndicho chiedza chakakodzera chekufambisa fiber.

1260nm ~ 1625nm waveband mwenje wakakamurwa kuita mashanu-O waveband, E waveband, S waveband, C waveband uye L waveband.

Mufananidzo 2

Masayendisiti akawanawo hukama pakati pekurasikirwa kwekutapurirana uye wavelength.Iri kuratidza sezvinotevera.

Mufananidzo 3

Inonyanya kushandiswa bhendi ndeye C waveband ((1530nm ~ 1565nm), inomiririra "zvakajairika".C bhendi inogona kuwana kushomeka kwekutapurirana kurasikirwa kunoshandiswa zvakanyanya kune MAN, kureba kureba, yekupedzisira kureba, submarine optical cable system uye WDM system.

L Waveband (1565nm~1625nm)

L inomirira "long-wavelength".L waveband inogona kuwana yechipiri kushoma kutapurirana kurasikirwa uye zvakare iri imwe yesarudzo huru yemaindasitiri.Kana C waveband isingakwanise kuzadzisa zvidikanwi zvebandwidth, Vanhu vanowanzo tora L waveband sekuwedzera.

S Waveband (1460nm~1530nm)

S inomirira "short-wavelength".Kana zvasvika pakurasikirwa kwefiber, yakakwirira kupfuura O waveband.Inowanzo shandiswa kune yakadzika wavelength yePON.

E Waveband

Iri ndiro risinganyanyo zivikanwa waveband pakati pemhando shanu dzewaveband.E inomirira "kuwedzerwa".Sezvinoratidzwa kubva pamufananidzo 3, bulge inogona kuonekwa paE waveband.Imhaka yekuti yakatorwa neOH- inotungamira mukurasikirwa kukuru kwekutapurirana, kunonzi zvakare peak yemvura.

Kare mumazuva ekare, nekuda kwehunyanzvi hushoma, mvura yakasanganiswa mugirazi yefiber optical iyo yakatungamira kurasikirwa kukuru kwekutapurirana muE waveband uye yaisakwanisa kushanda zvakajairika.Mushure mezvo, vanhu vakagadzira tekinoroji yekubvisa mvura mukugadzira magirazi, kubva ipapo, kurasikirwa kwekutapurirana muE waveband kwaive kwakadzikira kupfuura O waveband.Nekudaro, kurasikirwa kwekutapurirana kwakaitika paE waveband pane optical fiber tambo iyo yakagadzika isati yatsanangura kuti kuchine zvipingamupinyi zveE waveband yakaiswa mufiber optical kutaurirana.