Ukuhlaziywa Okuphelele Kwama-Waveband Ayisithupha Ayinhloko Okuxhumana Okubonakalayo

2026-06-04

I-fiber ekhanyayo ikwazi ukudlulisa isignali ngokukhanya kwangaphakathi okuphelele kokukhanya kwe-infrared ngaphakathi kwe-silica core. Ivinjelwe ukulahleka kokumuncwa kwe-silica okungaphakathi, ukusabalala kwe-Rayleigh, ukumuncwa kwe-infrared kanye nokuncipha kwe-hydroxyl water peak, ama-waveband ayisithupha amakhulu ezentengiselwano ajwayelekile embonini yokuxhumana kwe-optical yomhlaba wonke: 850 nm, 1310 nm, 1383 nm, 1490 nm, 1550 nm kanye ne-1625 nm. Lawa ma-waveband ahlanganisa i-LAN yebanga elifushane, inethiwekhi yedolobha elikhulu, umgogodla we-long-haul, ukufinyelela kwe-PON fiber, ukukhulisa okubonakalayo kanye nezimo zokuhlola i-optical fiber. Umehluko ohlukile ukhona ku-attenuation coefficient, ukuhlakazeka kwe-chromatic, ibanga lokudlulisa eliphakeme, izingxenye ze-optoelectronic ezifanayo kanye nokukhethwa kwe-fiber phakathi kwama-waveband ahlukene, asebenza njengezindinganiso eziyisisekelo zokukhetha imininingwane ye-fiber, umklamo wobunjiniyela kanye ne-R&D yezingxenye ze-optical. Leli phepha liqukethe izingxenye ezintathu eziyinhloko: izici ze-optical ezinemininingwane yama-waveband ayisithupha, ukuqhathaniswa okuvundlile kwemininingwane yobuchwepheshe be-fiber eyinhloko, kanye nokuhlukaniswa kwe-fiber ekhanyayo kanye nesicelo esisebenzayo sobubanzi ngabunye.

Ukuhlaziywa Okuphelele Kwama-Six Major Optical Communication Wavebands.jpg

Isahluko 1 Izici Eziningiliziwe Zokukhanya Zamabhande Ama-Waveband Ayisithupha Okuxhumana Nge-Fiber Classic

1.1 850 nm (Ifasitela Elifushane, Ifasitela Lokuqala Lokuxhumana Okubonakalayo)

I-850 nm iyi-wavelength yokuqala yokuxhumana ethengiswayo esetshenziselwa i-fiber optical ye-multimode kuphela. Umthombo wayo wokulahlekelwa oyinhloko uvela ku-Rayleigh scattering, okuncishiswa kwayo okulingana ngokuphambene namandla wesine we-wavelength. Ngenxa ye-wavelength emfushane ye-optical, ukuncishiswa kwe-fiber okuvamile kusuka ku-2.5 kuya ku-3.0 dB/km, izinga lokulahlekelwa eliphakeme kakhulu phakathi kwama-waveband ayisithupha. Akukho phuzu lokuhlakazeka okungu-zero elikhona ku-850 nm; ukuhlakazeka kwezinto ezihlanganisiwe kanye nokuhlakazeka kwe-intermodal kwandisa kakhulu ama-pulse e-optical futhi kukhawulele ukufinyelela kokudlulisela. Ku-fiber ye-OM1 kanye ne-OM2 multimode, ukufinyelela okuphezulu kwe-Gigabit Ethernet kungu-550 m kanye no-220 m ngokulandelana ku-850 nm, kuyilapho i-10G Ethernet isekela kuphela i-33 m (OM1) kanye ne-82 m (OM2).

Ama-Laser Akhipha Ubuso Obunezimbobo Eziqondile (ama-VCSEL) ayimithombo yokukhanya ejwayelekile yale band enokupakisha okuhlanganisiwe, izindleko eziphansi futhi akukho sidingo sokupholisa esengeziwe. Ubunzima obuphansi bokuxhumanisa kunciphisa kakhulu izindleko zokwakha uhlelo. Kunqunyelwe ukuncipha okuphezulu kanye nokukhubazeka kokusabalala, i-850 nm ivinjelwe kumakhebula angaphakathi akude, asetshenziswa kabanzi ekuxhumekeni kwesikhungo sedatha kanye nezinhlelo zamakhebula ezihlelekile.

1.2 1310 nm (Ifasitela Lokuhlakazeka Okungazelelwe, Ifasitela Lesibili Lokuxhumana)

Ilawulwa yi-ITU-T standard, i-1310 nm iyi-benchmark zero-dispersion wavelength ye-G.652 single-mode fiber. Ukusabalala kwezinto kumelana nokusabalala kwe-waveguide kule band, kudala ukusabalala kwe-chromatic okuseduze ne-zero cishe ku-0 ps/(nm·km) futhi kuqede ukuphambuka kwe-pulse okubangelwa ukusabalala ngaphandle kwamamojula engeziwe okubuyisela ukusabalala. Ukuncishiswa kwe-fiber yangaphakathi kwehlela ku-0.33~0.38 dB/km ngaphandle kokumuncwa kwamanzi kwe-hydroxyl okusobala, okwenza kube inketho ekhethwayo yokudlulisela okubonakalayo okuqondile kuya endaweni.

I-laser ye-Fabry-Perot (FP) iyi-emitter eyinhloko engu-1310 nm enezindleko eziphakathi nendawo. Kodwa-ke, leli wavelength lingaphandle kwe-gain spectrum ye-EDFA (Erbium-Doped Fiber Amplifier), ngakho-ke ukudluliselwa kwebanga elide kuncike ekudluliselweni kokuvuselelwa kwe-electric-optical esikhundleni sokwandiswa kwe-all-optical. Ngaphandle kokudluliselwa kwesevisi, i-1310 nm iyi-wavelength yokuhlola okuzenzakalelayo ye-OTDR (Optical Time Domain Reflectometer), esetshenziswa kabanzi ekwamukelweni kokwakhiwa kwekhebula le-fiber kanye nendawo yamaphutha.

1.3 1383 nm (Ifasitela Eliphezulu Kwamanzi, Ibhendi Elungiselelwe Ukuphakama Kwamanzi Okuphansi)

I-fiber ejwayelekile ye-G.652A/B eyodwa iqukethe ama-ion asele e-OH⁻ avela ekwakhiweni kwe-preform, okudala ukuphakama okunamandla kokumuncwa ku-1383 nm ngokuncipha okungaphezu kuka-20 dB/km, okwenza lo msinga ungatholakali ukusetshenziswa kwezentengiselwano emashumini eminyaka edlule. Ngenxa yokuphelelwa amanzi emzimbeni okuthuthukisiwe kanye nobuchwepheshe bokwenziwa kwe-preform ye-fiber ye-G.652C/G.652D esezingeni eliphansi lamanzi, ukuhlushwa kwama-ion e-hydroxide asele kulawulwa ezingeni le-ppb, kunciphisa ukulahlekelwa kwamanzi ngaphansi kuka-0.4 dB/km futhi kuvumela ukuthunyelwa okukhulu kwezentengiselwano.

I-spectrum etholakalayo ihlanganisa i-1360~1410 nm, igcwalisa igebe lemvamisa eliphakathi kuka-1310 nm no-1490 nm lokukhulisa isiteshi se-CWDM. Njengoba kunjalo nge-1310 nm, i-1383 nm ayikwazi ukukhuliswa yi-EDFA, okuvimbela ukusetshenziswa kwayo ekukhuleni kwe-CWDM yedolobha kanye nenethiwekhi yokuqapha ukuphepha yangasese. Ukunciphisa okuvamile kugcinwa ku-0.38~0.42 dB/km.

1.4 1490 nm (Indawo Yokuqala ye-S-band, Ubude Begagasi Eliphansi Le-FTTH PON)

I-1490 nm, engaphansi kwe-S-band (1460 ~ 1530 nm), i-1490 nm ichazwa njengobude obujwayelekile be-EPON/GPON ngaphansi kwephrothokholi ye-ITU-T G.984: I-OLT idlulisela idatha ye-downstream ku-1490 nm, kuyilapho i-ONU ithumela isignali yokubuya kwe-upstream ku-1310 nm, ibona ukudluliselwa kwe-single-fiber bidirectional nge-wavelength division multiplexing.

Ukuncipha okuvamile kwe-1490 nm kusuka ku-0.26 kuya ku-0.30 dB/km, okuphakeme kune-1310 nm ekusebenzeni kokulahlekelwa; ukusabalala kwe-chromatic kuhlala cishe ku-10 ps/(nm·km), kusekela isiqu se-PON ODN esijwayelekile samakhilomitha angama-20 ngaphandle kwesinxephezelo sokusabalala. I-laser ye-DFB enobubanzi obuncane be-spectral kanye nokulawula izinga lokushisa elihlala njalo ifakwe ukudluliselwa kwesignali okubuthakathaka ngemva kokuhlukana kwe-optical okungabonakali. Isihlungi se-WDM esifanisiwe sihlukanisa izimpawu ezingenhla nezingezansi, okwenza i-1490 nm ibe ubude besikhathi obusetshenziswa kakhulu ekufinyeleleni i-broadband yomhlaba wonke kusuka ekhaya kuya efayibhelini.

1.5 1550 nm (I-C-band Core, Iwindi Lesithathu Lokuxhumana Elilahlekile Kakhulu)

Eyaziwa ngokuthi ifasitela legolide lokuxhumana kwe-optical, i-1550 nm itholakala ku-C-band (1530~1565 nm), lapho i-silica fiber ifinyelela khona ukuncishiswa kwayo okuncane okungu-0.19~0.22 dB/km kuwo wonke ama-waveband ayisithupha. Lobu bude be-wavelength buhambisana kahle ne-gain spectrum ye-EDFA; izithwali eziningi ze-DWDM optical zingakhuliswa ngesikhathi esisodwa ngaphandle kokuvuselelwa kwe-optoelectronic, okuvumela izinkulungwane zamakhilomitha ukudluliselwa kokuhamba okude okungenakuphindwa.

I-fiber ejwayelekile ye-G.652 iveza ukuhlakazeka okuhle kwe-chromatic cishe ngo-17 ps/(nm·km) ku-1550 nm, okudinga i-DCF (Dispersion Compensation Fiber) yomgogodla we-DWDM omude kakhulu. I-fiber ye-G.655 engeyona i-zero dispersion-shifted igcina ukuhlakazeka okuncane okusele (2~6 ps/(nm·km)) ukucindezela umphumela we-Four-Wave Mixing nonlinear, olungiselelwe ukuthunyelwa kwesistimu ye-DWDM enamandla aphezulu. Ngaphandle komgogodla webanga elide, i-1550 nm iyi-wavelength yokusebenza okukhethekile yokudluliselwa kwe-optical ye-analog CATV RF; Uhlelo lwe-DWDM luhlukanisa i-C-band ibe yiziteshi ezingaphezu kuka-80 ezijwayelekile endaweni engu-0.8 nm yokwakhiwa kwenethiwekhi yomgogodla enamandla amakhulu kakhulu kanye nokwakhiwa kwekhebula le-optical elingaphansi kwamanzi.

1.6 1625 nm (ibhendi ye-L, Ubude be-Wavelength Yokuqapha I-Fiber Esensimini)

I-1625 nm iwela ku-L-band (1565~1625 nm), eklanyelwe ikakhulukazi ukuqapha i-optical fiber online ngesikhathi sangempela kanye nokwandiswa komthamo we-L-band DWDM ngokwengxenye. Ukuncipha kwayo okuvamile kungu-0.23~0.25 dB/km ngaphandle kokuphazamiseka kwamanzi, kanye nokusabalala kwe-chromatic kufinyelela cishe ku-22 ps/(nm·km).

Inzuzo eyinhloko ilele ekuhlukanisweni kwe-spectrum kusuka kuma-wavelength esevisi (1310/1490/1550 nm). Nge-coupler ye-WDM engasebenzisi i-passive, ukukhanya kokuqapha kuhlanganiswa ne-fiber esebenzayo ngaphandle kokuphazamisa isevisi yedatha esebenzayo; i-OTDR eku-inthanethi esekelwe ku-1625 nm ibona ukutholwa kwesikhathi sangempela kokuguga kwekhebula, i-breakpoint kanye nokulahleka okungavamile, okuba ubuchwepheshe obuyinhloko be-O&M ehlakaniphile yezintambo zomgogodla ze-carrier-grade. I-EDFA ye-L-band ehambisanayo isekela ukunwetshwa kwe-DWDM lapho izinsiza ze-C-band spectrum ziphela.

Isahluko 2 Amapharamitha Obuchwepheshe be-Core Optical Fiber kanye Nemininingwane Ukuqhathanisa Okuvundlile

I-optical fibre ihlukaniswe nge-multimode fibre (OM1/OM2/OM3/OM4/OM5) kanye ne-single-mode fibre (G.652A/B/C/D, G.653, G.655, G.657). Izinkomba zobuchwepheshe ezibalulekile zifaka phakathi i-attenuation coefficient, i-chromatic dispersion, i-cutoff wavelength, ububanzi bensimu yemodi, ukulahlekelwa kwe-macrobending kanye ne-bandwidth.

2.1 Incazelo Yezinkomba Zobuchwepheshe Eziyinhloko

Ukuncipha (dB/km): Ukusetshenziswa kwamandla okubonakalayo ngekhilomitha; inani eliphansi limelela ibanga elide lokudlulisa, elithinteka ubude be-wavelength, izinto zokusetshenziswa kanye nesimo sokugoba.
Ukusabalala kwe-Chromatic (ps/(nm·km)): Umehluko wesivinini sokudlulisa phakathi kwezingxenye ezahlukene ze-spectral; inani elincane linciphisa ukuphazamiseka kwe-pulse kwesignali yesivinini esikhulu.
Ubude be-Cutoff Wavelength: Ubude be-wavelength obubalulekile bokusabalalisa kwemodi eyodwa; ukukhanya okungavamile kuphela okungaphezu kwe-cutoff wavelength okungadluliselwa njengemodi eyodwa ngaphakathi kwenhliziyo.
Ukulahlekelwa Ukugoba: Ukulahlekelwa amandla okwengeziwe okubangelwa ukugoba kwefayibha eqinile; ifayibha engazweli ukugoba ye-G.657 inokusebenza okuvelele kulolu hlu.
Ububanzi Bensimu Yemodi: Usayizi webala osebenzayo wokukhanya okusabalalisa ngaphakathi kwe-core yemodi eyodwa, okuthonya ngqo ukusebenza kahle kokuxhumanisa phakathi kwamadivayisi e-fiber kanye ne-optoelectronic.
I-bandwidth (MHz·km): Ipharamitha eyinhloko yefayibha yemodi eminingi, enquma ikhono lokudlulisa ibanga elifushane ngesivinini esikhulu.

2.2 Ukuqhathaniswa Kwepharamitha Yezinhlobo Ze-Fiber Ezijwayelekile Kuma-Waveband Ayisithupha

2.2.1 I-Multimode Fiber (ukuhambisana kwebanga elifushane elingu-1310 nm okuhlukile okungu-850 nm)

I-fiber ye-Multimode ihlushwa ukusabalala okukhulu kwe-intermodal ku-1383/1490/1550/1625 nm futhi ayikwazi ukusekela ukudluliselwa okusebenzayo kwebanga elide:

I-OM1 (62.5/125 μm): 3.0 dB/km @850 nm, i-bandwidth engu-200 MHz·km; umkhawulokudonsa ongu-33 m we-10G Ethernet.
I-OM2 (50/125 μm): 2.5 dB/km @850 nm, i-bandwidth engu-500 MHz·km; umkhawulokudonsa ongu-82 m we-10G Ethernet.
OM3/OM4 (I-50/125 μm elungiselelwe nge-laser): OM3:2000 MHz·km, 300 m@10G; OM4:4700 MHz·km,550 m@10G.
I-OM5: Amafasitela amabili alungiselelwe kahle (850 nm+953 nm), enzelwe ukuxhumana kwesikhungo sedatha esingu-400G sebanga elifushane.

2.2.2 G.652 I-Universal Single-Mode Fiber (Ihambisana nebhendi yamagagasi ayisithupha ephelele ye-G.652C/D)

G.652A/B (Isiqongo samanzi esiphezulu): Ayisebenzi ku-1383 nm ngenxa yokulahlekelwa ukumuncwa okungaphezu kuka-5 dB/km; 0.35 dB/km kanye nokusabalala okungu-zero @1310 nm;0.28 dB/km@1490 nm;0.20 dB/km &17 ps/(nm·km)@1550 nm;0.24 dB/km &22 ps/(nm·km)@1625 nm.
G.652C/D (Isiqongo samanzi aphansi): Ukususwa kwe-OH⁻ okulungiselelwe, ngaphansi kuka-0.4 dB/km@1383 nm, i-full six-waveband iyatholakala, i-fibre evelele yenethiwekhi ye-metro kanye neyokufinyelela.
Ubude be-cutoff ≤1260 nm, ububanzi bensimu yemodi 9.2 μm, ukusebenza okujwayelekile kokugoba.

2.2.3 G.653 I-Fiber Eshintshiwe Esabalalisiwe

Iphuzu lokusabalala kwe-zero lishintshele ku-1550 nm; ukusabalala okuseduze kwe-zero ku-C-band kuyilapho ukusabalala okweqile ku-1310 nm, okungafaneleki kuma-wavelength amafushane. Ukuxuba Okune-Severe Four-Wave kuvimbela ukusetshenziswa kwayo ku-DWDM yeziteshi eziningi, kuphela kumugqa wangasese we-single-length ultra-long.

2.2.4 I-G.655 I-Fiber Engasabalali Kakhulu Engashintshiwe

Ukusabalala okuncane okusele okuhle ku-1550 nm ukuze kulinganiswe isinxephezelo sokusabalala kanye nokucindezelwa okungeyona i-linear, okukhethekile ku-C/L-band backbone DWDM kanye nekhebula le-transoceanic submarine; ukusebenza okungekuhle ku-1310 nm nangaphansi kwamaza okukhanya.

2.2.5 G.657 I-Fiber Engazweli Ukugoba (Ikhebula Lokulahla Langaphakathi le-FTTH)

Kuhlukaniswe ku-A1 (ukulungiswa kokugoba okuthambile) kanye ne-B2 (irediyasi yokugoba encane kakhulu); ukulahlekelwa okuphansi kakhulu ngaphansi kokugoba okuqinile, kuhambisana ngokugcwele nama-waveband ayisithupha, izinto ezijwayelekile zekhebula lokudonsa langaphakathi le-FTTH kanye nezintambo zasekhaya ze-FTTR.

Ubude begagasi	850 nm	1310 nm	1383 nm (Isilinganiso samanzi aphansi)	1490 nm	1550 nm	1625 nm
Ukuncipha Okuvamile (dB/km)	2.5~3.0	0.33~0.38	0.38~0.42	0.26~0.30	0.19~0.22	0.23~0.25

Isahluko 3 Isimo Sokusetshenziswa, Ukukhethwa Kwefayibha Nokuqhathaniswa Kokufaniswa Kwesistimu Kwama-Waveband Ayisithupha

3.1 850 nm: Ukuxhumana kwe-Data Center kanye ne-Campus LAN

I-Fiber Ehambisanayo: OM1~OM5 uchungechunge oluphelele lwe-multimode fiber kuphela

Uhlelo Lokudlulisa: I-Gigabit/10G/25G Ethernet, inethiwekhi yesitoreji se-Fiber Channel

Isicelo Esijwayelekile: Intambo ye-Cabinet patch, ukuxhumana okufushane kwe-TOR-to-server ngaphakathi kwe-IDC, i-campus LAN kanye nezintambo zokwenza izinto ngokuzenzakalela zezimboni, ibanga lokudlulisela: 30 m~550 m

Ubuhle Nokushiyeka: Umthombo we-VCSEL ongabizi kakhulu kanye nokwakhiwa okulula; ibanga lokudlulisela elilinganiselwe, i-fiber yemodi eyodwa iyadingeka uma ibanga lidlula amamitha angu-550.

3.2 1310 nm: Ukuhlolwa Komugqa Ozimele We-Metro Point-to-Point kanye ne-Standard Fiber

I-Fiber Ehambisanayo: G.652 ububanzi obuphelele kanye ne-G.657; akuvamile ukuthi kube yi-G.653/G.655

Uhlelo Lokudlulisa: Umugqa wendabuko oqashiwe we-SDH/MSTP, ukufinyelela kwefayibha emnyama ekhomba iphuzu kuya kwelinye, ukuhlolwa kokwamukelwa kwefayibha ye-OTDR

Isicelo Esijwayelekile: Umugqa wangasese wamabhange phakathi kwamadolobha, ukufinyelela okubonakalayo okunikezelwe ebhizinisini, inethiwekhi yokufinyelela yendawo yenkampani, ukufinyelela okuphezulu kwe-single-span ≤80 km; i-electro-optic relay eyengeziwe yebanga elide

Ubuhle Nokushiyeka: Ukuhlakazeka kwe-Zero-dispersion kugwema ukuphambuka kwesignali ngemishini evuthiwe; ayitholakali ekukhuliseni kwe-EDFA all-optical, kancane kancane ithathelwa indawo yi-1550 nm DWDM yokuxhumana okude.

3.3 1383 nm: Ukwandiswa kwe-Metro CWDM ye-Spectrum Ephansi

I-Fiber Ehambisanayo: G.652C/D & G.657 kuphela; akusebenzi ezindaweni eziphakeme kakhulu G.652A/B

Uhlelo Lokudlulisa: Ukwehlukaniswa kwe-wavelength ye-CWDM engu-8/16-channel

Isicelo Esijwayelekile: Inethiwekhi ye-CATV yangasese yezinga ledolobha, ukunwetshwa kwefayibha yezinsizakalo eziningi zepaki yezimboni, uhlelo lokuqapha imayini kanye nokuphepha, ukufinyelela okuphezulu okungu-≤40 km

Ubuhle Nokushiyeka: Ukusetshenziswa kwe-spectrum okuphumelelayo ngaphandle kokubekwa kwefayibha entsha; ukungabikho kokukhulisa kwe-EDFA kunciphisa ukuthunyelwa kwebanga elide kakhulu.

3.4 1490 nm: Ukufinyelela Kwefayibha Ye-FTTH PON Yomhlaba Wonke

I-Fiber Ehambisanayo: G.652D yesiqu se-feeder + G.657 yekhebula lokudonsa langaphakathi

Uhlelo Lokudlulisa: I-EPON/GPON/10G PON, i-bidirectional ye-single-fiber (1490 phansi, 1310 phezulu, 1550 ukuze uthole i-CATV overlay ongayikhetha)

Isicelo Esijwayelekile: Ukufinyelela i-broadband yezindlu, inethiwekhi ye-FTTO egcwele ukukhanya kwebhizinisi, i-trunk ye-ODN engamakhilomitha angu-20 + ngaphakathi komugqa wokudonsa wangaphakathi ongu-5 km

Ubuhle Nokushiyeka: Ukufakwa kwe-OLT okusekelwe ku-Passive splitter-based centralized deployment, i-single fiber isekela abasebenzisi bokugcina abangu-64 ~ 128; iba yingqalasizinda eyisisekelo yokwakhiwa kwe-broadband ye-fiber yomhlaba wonke.

3.5 1550 nm: Ukudluliselwa Okubonakalayo kwe-DWDM Backbone kanye ne-CATV Optical

I-Fiber Ehambisanayo: G.652 ye-metro DWDM, G.655 yentambo kazwelonke yomgogodla kanye nentambo yasemanzini, G.653 yentambo yangasese enobude obude kakhulu obuyi-wave eyodwa

Uhlelo Lokudlulisa: I-DWDM dense wavelength division multiplexing, i-analog CATV RF optical transport, uhlelo lwe-backbone olusheshayo lwe-100G/400G

Isicelo Esijwayelekile: Ikhebula lesiqu eliphakathi kwezifundazwe, ikhebula le-optical elihamba ngaphansi kolwandle, inethiwekhi ye-CATV HFC ene-fiber; ukukhulisa okubonakalayo okusizwa yi-EDFA kufeza ukudluliselwa okungenamakhilomitha ayinkulungwane okuphindaphindayo

Ubuhle Nokushiyeka: Ukunciphisa okuncane kwefayibha kanye nobuchwepheshe be-EDFA obuvuthiwe busekela umthamo wefayibha eyodwa ezingeni le-terabit; izindleko eziphezulu zezingxenye ze-DWDM optical ezisezingeni eliphezulu.

3.6 1625 nm: Ukuqapha Ikhebula Elisemsebenzini kanye Nokwandiswa Kwe-DWDM Yebhendi E-L

I-Fiber EhambisanayoZonke izinhlobo zefayibha yemodi eyodwa kufaka phakathi i-G.652/G.655/G.657

Uhlelo Lokudlulisa: Ipulatifomu yokuqapha ye-OTDR eku-inthanethi, imishini yokwandisa i-L-band DWDM

Isicelo Esijwayelekile: Ukuqapha kwesikhathi sangempela okuhlakaniphile kwekhebula lomgogodla lomthwali, isexwayiso sangaphambi kwesikhathi esingaphazamisi sephutha lekhebula elifihliwe, ukunwetshwa komthamo ngemuva kokugcwala kwe-spectrum ye-C-band

Ubuhle Nokushiyeka: Akukho msebenzi we-spectrum yesevisi ukuze kuqashwe ukuqapha okungapheli, kufinyezwe ngempumelelo isikhathi sokungasebenzi kokugcinwa kwekhebula; ikakhulukazi kusetshenziselwa inethiwekhi yobungcweti ye-O&M yenkampani.

Isiphetho

Amabhande ayisithupha okuxhumana ajwayelekile akha uhlelo lokusebenza lwenethiwekhi ye-optical olunezendlalelo olusekelwe ezimpahleni ze-silica optical ezingokwemvelo: i-850 nm ibusa ikhebula le-multimode yangaphakathi elifushane; i-1310 nm isebenza njengokuhlolwa okuyisisekelo kwemodi eyodwa kanye nobude be-wavelength yomugqa oyimfihlo; izithasiselo ze-1383 nm i-CWDM vacant spectrum; i-1490 nm ilawula ukufinyelela kwe-FTTH okungenamsebenzi; i-1550 nm isebenza njengesisekelo somgogodla we-long-haul kanye nokudluliselwa kwe-CATV; i-1625 nm igxile ekuqapheni ukusebenza kwe-fiber online okungaphazamisi. Ukukhethwa kwe-fiber kulandela umthetho oqondiswe kubude be-wavelength: i-multimode fiber yezixhumanisi ze-short-range ezingama-850 nm, i-G.652D/G.657 yenethiwekhi yokufinyelela ye-1310/1383/1490, i-G.655 non-zero dispersion fiber ye-1550 long-haul DWDM, i-G.657 gond-insolitive fiber yezintambo ze-FTTH zangaphakathi.

Iqhutshwa ukwakhiwa kwenethiwekhi yabathwali be-5G, ukuxhumana kwesivinini esikhulu sesikhungo sedatha kanye nokufakwa kwefayibha ye-FTTR egcwele ekhaya, i-G.652D ephansi kakhulu kanye ne-G.657 engagobile kancane kancane iba yizincazelo zefayibha eziyinhloko emakethe ye-optical yomhlaba wonke. Isidingo sokwanda kwe-CWDM esingu-1383 nm kanye ne-L-band engu-1625 nm siyaqhubeka nokukhula minyaka yonke; i-850 nm multimode igcina indawo eyinhloko yokuxhumana kwesivinini esikhulu ibanga elifushane, kuyilapho i-1550 nm ihlala iwindi legolide elingenakuphikwa lokuxhumana kwe-optical okuhamba isikhathi eside kuncike kubuchwepheshe bokukhulisa be-EDFA obuvuthiwe. Ukuqonda ukunciphisa, isici sokuhlakazeka, isimo sokufanisa ifayibha kanye nomngcele ofanele wama-waveband ayisithupha kunikeza ukwesekwa okuyisisekelo kwethiyori kokukhethwa kwezincazelo zefayibha, ukwakheka kobunjiniyela benethiwekhi ye-optical kanye nokwenza ngcono umthamo wenethiwekhi ekhona.

Xhumana Nathi, Thola Imikhiqizo Esezingeni Eliphezulu kanye Nensizakalo Yokunaka.

Funda kabanzi

Izindaba ze-BLOG

Ulwazi Lomkhakha

Intambo ye-Fiber Optic ihlala isikhathi esingakanani?

Funda kabanzi

2026-07-21

Ikhebula le-fibre optic seliyinsika yamanethiwekhi okuxhumana anamuhla, lisekela i-inthanethi esheshayo, ezokuxhumana, izikhungo zedatha, ingqalasizinda ye-5G, ukuzenzekela kwezimboni, kanye namadolobha ahlakaniphile. Uma kuqhathaniswa nezintambo zethusi zendabuko, izintambo ze-fibre optic zinikeza i-bandwidth ephezulu, ukulahleka kwesignali okuphansi, amabanga amade okudlulisela, kanye nokumelana okungcono nokuphazamiseka kwe-electromagnetic.

Ungayikhetha Kanjani Ikhebula Le-Fiber Patch Elifanele?

Funda kabanzi

2026-07-17

Kumanethiwekhi okuxhumana asheshayo anamuhla, intambo yesichibi sefayibha isibe ngenye yezingxenye ezibaluleke kakhulu zokuxhumanisa amadivayisi e-optical, imishini yenethiwekhi, kanye nezinhlelo zokusabalalisa i-fiber. Kusukela ezikhungweni zedatha kanye namanethiwekhi ezokuxhumana kuya ekusetshenzisweni kwe-FTTH (Fiber to the Home) kanye nezinhlelo zokuxhumana zebhizinisi, izintambo ze-fiber patch zinikeza ukuxhumana kwe-optical okuthembekile nokusebenza kahle.

Ukuhlaziywa Okuphelele kwe-G.657.A1, G.657.A2 kanye ne-G.657.B3

Funda kabanzi

2026-07-13

Ngokusetshenziswa okukhulu kwe-FTTH Fiber ekhaya, izikhungo zedatha ze-AI computing, i-5G fronthaul, izintambo ezibanzi zangaphakathi, ukuxhumana okuncane kwe-FPV drone kanye nokwakhiwa kokuvuselelwa kwamanje okubuthakathaka emhlabeni wonke, intambo yendabuko ye-G.652D single-mode ihlushwa ukulahlekelwa okukhulu kokugoba kanye nesikhala esilinganiselwe socingo, okuvimbela kakhulu ukwakheka kwamanethiwekhi okuxhumana we-optical asheshayo. Yakhiwe yi-ITU-T, intambo ye-single-mode engazweli uchungechunge lwe-G.657 series bend-insensitive ithuthukiswe ngokukhethekile kumakhona amancane okujika, izintambo ezixinene kanye nezimo zepayipi elincane. Amabanga amathathu omkhiqizo ojwayelekile, intambo ejwayelekile engazweli ukugoba ye-G.657.A1, intambo ethuthukisiwe engazweli ukugoba ye-G.657.A2 kanye nentambo engazweli ukugoba ye-G.657.B3 ultra-bend, isebenzisa amaphrofayili enkomba yokubuyisa asekelwe emseleni ahlukene, futhi aveza umehluko olinganisiwe ku-radius encane yokugoba, ububanzi bensimu yemodi kanye nokusebenza kokunciphisa. Zihlanganisa izidingo zesimo esigcwele kusukela kuzintambo zasekhaya ezingabizi kakhulu kuya kuzintambo ezikhethekile eziqinile kakhulu.