Kusanthula Kwathunthu kwa Ma Waveband Asanu ndi Awiri Akuluakulu Olumikizirana ndi Optical

2026-06-04

Ulusi wowala umatha kutumiza ma signal kudzera mu kuwala kwa infrared mkati mwa silica core. Polepetsedwa ndi kutayika kwa intrinsic silica absorption, Rayleigh scattering, infrared absorption ndi hydroxyl water peak attenuation, ma waveband asanu ndi limodzi akuluakulu amalonda ali ofanana mu makampani olumikizirana padziko lonse lapansi: 850 nm, 1310 nm, 1383 nm, 1490 nm, 1550 nm ndi 1625 nm. Ma wavelength awa amakhudza LAN yaifupi, network ya metropolitan, backbone yautali, PON fiber access, optical amplification ndi optical fiber testing scenarios. Pali kusiyana kosiyana mu attenuation coefficient, chromatic dispersion, maximum transmission distancing components ndi fiber select pakati pa ma waveband osiyanasiyana, zomwe zimakhala zofunikira pakusankha ma fiber specification, engineering design ndi optical component R&D. Pepalali lili ndi magawo atatu apakati: mawonekedwe atsatanetsatane a ma waveband asanu ndi limodzi, kuyerekeza kopingasa kwa ma core fiber technical specifications, ndi ma fiber ofanana & practical application grouping pa wavelength iliyonse.

Kusanthula Kwathunthu kwa Ma Waveband Asanu ndi Awiri Akuluakulu Olumikizirana ndi Optical.jpg

Mutu 1 Makhalidwe Ozama Kwambiri a Ma Waveband Asanu ndi Awiri Olumikizirana a Ulusi Wachikale

1.1 850 nm (Zenera laufupi, Zenera Loyamba la Kulankhulana kwa Optical)

850 nm ndiye mafunde oyamba kwambiri olumikizirana omwe amagwiritsidwa ntchito pa multimode optical fiber okha. Gwero lake lalikulu lotayika limachokera ku Rayleigh scattering, yomwe kuchepa kwake kuli kofanana ndi mphamvu yachinayi ya mafunde. Chifukwa cha mafunde afupiafupi a kuwala, kuchepa kwa fiber kumakhala pakati pa 2.5 mpaka 3.0 dB/km, mulingo wapamwamba kwambiri wotayika pakati pa ma waveband asanu ndi limodzi. Palibe malo ofalikira a zero omwe alipo pa 850 nm; kuphatikiza zinthu zofalikira ndi kufalikira kwa intermodal kumakulitsa kwambiri ma pulses a optical ndikuchepetsa kufikira kwa ma transmission. Pa OM1 ndi OM2 multimode fiber, kufika kwakukulu kwa Gigabit Ethernet ndi 550 m ndi 220 m motsatana pa 850 nm, pomwe 10G Ethernet imathandizira 33 m (OM1) ndi 82 m (OM2) zokha.

Ma Laser Otulutsa Zinthu Pamwamba Okhala ndi Mipata Yoyima (VCSEL) ndi magwero owunikira wamba a gululi okhala ndi ma CD ochepa, mtengo wotsika komanso palibe kuzizira kowonjezera. Kuvuta kochepa kolumikizana kumachepetsa kwambiri mtengo womangira makina. Chifukwa cha kuchepa kwakukulu kwa magetsi ndi zolakwika zofalikira, 850 nm imangokhala ndi ma waya afupiafupi amkati, omwe amagwiritsidwa ntchito kwambiri mu kulumikizana kwa malo osungira deta komanso makina olumikizirana okonzedwa.

1.2 1310 nm (Zero-Dispersion Zero, Zero Second Communication Zero Dispersion ...

Motsogozedwa ndi muyezo wa ITU-T, 1310 nm ndiye benchmark zero-dispersion wavelength ya ulusi wa G.652 single-mode. Kufalikira kwa zinthu kumalimbana ndi kufalikira kwa waveguide pa band iyi, ndikupanga kufalikira kwa chromatic pafupi ndi zero pafupifupi 0 ps/(nm·km) ndikuchotsa kusokonekera kwa pulse komwe kumachitika chifukwa cha kufalikira popanda ma module owonjezera a dispersion. Kuchepa kwa ulusi wamkati kumatsika kufika pa 0.33~0.38 dB/km popanda kuyamwa kwa hydroxyl water peak, zomwe zimapangitsa kuti ikhale njira yabwino kwambiri yotumizira ma optical passive point-to-point.

Laser ya Fabry-Perot (FP) ndiyo imagwiritsa ntchito mphamvu ya 1310 nm yokhala ndi mtengo wochepa wa zinthu. Komabe, mphamvu ya wavelength iyi ili kunja kwa EDFA (Erbium-Doped Fiber Amplifier), kotero kutumiza kwakutali kumadalira magetsi obwezeretsanso magetsi m'malo mwa magetsi owonjezera. Kupatula kutumiza kwa ntchito, 1310 nm ndiye mphamvu ya wavelength yoyesera ya OTDR (Optical Time Domain Reflectometer), yomwe imagwiritsidwa ntchito padziko lonse lapansi povomereza kapangidwe ka chingwe cha fiber ndi malo olakwika.

1.3 1383 nm (Zenera Lokhala ndi Madzi Ochepa, Mzere Wokonzedwa Wokhala ndi Madzi Ochepa)

Ulusi wamba wa G.652A/B uli ndi ma ion otsalira a OH⁻ ochokera ku preform, zomwe zimapangitsa kuti mayamwidwe azitha kufika pa 1383 nm ndi kuchepa kwa 20 dB/km, zomwe zidapangitsa kuti kutalika kwa nthawiyi kusagwiritsidwe ntchito pamalonda zaka makumi angapo zapitazo. Chifukwa cha kusowa madzi m'thupi komanso ukadaulo wopangira ma preform wa ulusi wa G.652C/G.652D wokhala ndi madzi ochepa, kuchuluka kwa ma ion a hydroxide otsala kumayendetsedwa pamlingo wa ppb, kuchepetsa kutayika kwa madzi pansi pa 0.4 dB/km ndikulola kuti malonda agwiritsidwe ntchito kwambiri.

Sipekitiramu yomwe ilipo imaphimba 1360~1410 nm, kudzaza kusiyana kwa ma frequency pakati pa 1310 nm ndi 1490 nm kuti njira ya CWDM ikule. Mofanana ndi 1310 nm, 1383 nm singakulitsidwe ndi EDFA, zomwe zimalepheretsa kugwiritsidwa ntchito kwake ku CWDM expansion yocheperako komanso netiweki yowunikira chitetezo chachinsinsi. Kuchepa kwanthawi zonse kumakhala pa 0.38~0.42 dB/km.

1.4 1490 nm (S-band Starting Point, Downstream Core Wavelength ya FTTH PON)

Pokhala mu gulu la S (1460 ~ 1530 nm), 1490 nm imafotokozedwa ngati kutalika kwa EPON/GPON komwe kumadutsa pansi pa protocol ya ITU-T G.984: OLT imatumiza deta yochokera pansi pa 1490 nm, pomwe ONU imatumiza chizindikiro chobwerera pamwamba pa 1310 nm, zomwe zimapangitsa kuti pakhale kufalikira kwa single-fiber bidirectional kudzera mu wavelength division multiplexing.

Kuchepa kwa 1490 nm kumayambira pa 0.26 mpaka 0.30 dB/km, kuposa 1310 nm pakutayika; kufalikira kwa chromatic kumakhala pafupifupi 10 ps/(nm·km), komwe kumathandizira thunthu la PON ODN la 20 km lokhazikika popanda kubweza kufalikira. Laser ya DFB yokhala ndi mzere wopapatiza wa spectral ndi control yokhazikika yotenthetsera imakonzedwa kuti itumize chizindikiro chofooka pambuyo pa kugawanika kwa kuwala. Fyuluta ya WDM yofanana imasiyanitsa zizindikiro zakumtunda ndi zakumunsi, zomwe zimapangitsa 1490 nm kukhala mafunde ogwiritsidwa ntchito kwambiri padziko lonse lapansi kuti azitha kugwiritsa ntchito intaneti ya fiber-to-home.

1.5 1550 nm (C-band Core, Zenera Locheperako la Kulankhulana Lachitatu)

Yodziwika kuti ndi zenera lagolide la kulumikizana kwa kuwala, 1550 nm ili mu C-band (1530 ~ 1565 nm), pomwe ulusi wa silica umafika pa kuchepa kwake kochepa kwa 0.19 ~ 0.22 dB / km kudutsa ma waveband onse asanu ndi limodzi. Kutalika kwa kutalika kumeneku kumagwirizana bwino ndi kuchuluka kwa EDFA; ma DWDM optical carriers ambiri amatha kukulitsidwa nthawi imodzi popanda kukonzanso kwa optoelectronic, zomwe zimapangitsa kuti ma kilomita masauzande ambiri azitha kufalikira popanda kubwerezabwereza.

Ulusi wamba wa G.652 umapereka kufalikira kwabwino kwa chromatic pafupifupi 17 ps/(nm·km) pa 1550 nm, zomwe zimafuna DCF (Dispersion Compensation Fiber) ya msana wa DWDM wautali kwambiri. Ulusi wosinthidwa wa G.655 wosasinthika umasunga kufalikira kwapang'ono kotsalira (2~6 ps/(nm·km)) kuti uchepetse mphamvu ya Four-Wave Mixing nonlinear, yokonzedwa kuti igwiritsidwe ntchito kwambiri pa DWDM system. Kupatula msana wautali, 1550 nm ndiye mphamvu yokhayo yogwirira ntchito ya analog CATV RF optical transmission; Dongosolo la DWDM limagawa C-band m'njira zoposa 80 zokhazikika pa mtunda wa 0.8 nm kuti pakhale network ya msana waukulu kwambiri komanso yomanga chingwe cha optical pansi pamadzi.

1.6 1625 nm (L-band, Utali wa Mafunde Oyang'anira Ulusi mkati mwa ntchito)

1625 nm imagwera mu gulu la L (1565~1625 nm), makamaka yopangidwira kuyang'anira ulusi wa optical pa intaneti nthawi yeniyeni komanso kukulitsa mphamvu ya DWDM pang'ono. Kuchepa kwake kwachizolowezi ndi 0.23~0.25 dB/km popanda kusokoneza madzi, ndipo kufalikira kwa chromatic kumafika pafupifupi 22 ps/(nm·km).

Ubwino waukulu uli mu kulekanitsidwa kwa ma spectrum kuchokera ku ma wavelength a service (1310/1490/1550 nm). Kudzera mu cholumikizira cha WDM chosagwiritsa ntchito mphamvu, kuwala kowunikira kumalumikizidwa mu ulusi wogwira ntchito popanda kusokoneza ntchito ya data; OTDR yapaintaneti yochokera pa 1625 nm imazindikira nthawi yeniyeni kukalamba kwa chingwe, kusweka kwa chingwe ndi kutayika kosazolowereka, komwe kumakhala ukadaulo waukulu wa O&M wanzeru wa zingwe zamsana zonyamula. L-band EDFA yogwirizana imathandizira kukulitsa kwa DWDM pamene C-band spectrum resource yatha.

Mutu 2 Core Optical Fiber Technical Parameters & Specifikation Horizontal Kuyerekeza

Ulusi wa kuwala umagawidwa m'magulu awiri: ulusi wa multimode (OM1/OM2/OM3/OM4/OM5) ndi ulusi wa single-mode (G.652A/B/C/D, G.653, G.655, G.657). Zizindikiro zazikulu zaukadaulo zimaphatikizapo attenuation coefficient, chromatic dispersion, cutoff wavelength, mode field diameter, macrobending loss ndi bandwidth.

2.1 Tanthauzo la Zizindikiro Zaukadaulo Zazikulu

Kuchepa kwa mphamvu (dB/km): Kugwiritsa ntchito mphamvu ya kuwala pa kilomita imodzi; mtengo wotsika umayimira mtunda wautali wotumizira, womwe umakhudzidwa ndi kutalika kwa mafunde, zinthu zopangira, ndi momwe zimapindikira.
Kufalikira kwa Chromatic (ps/(nm·km)): Kusiyana kwa liwiro la kutumiza pakati pa zigawo zosiyanasiyana za spectral; mtengo wocheperako umachepetsa kusokonekera kwa pulse kwa chizindikiro cha liwiro lalikulu.
Kutalika kwa Mafunde Ozungulira: Kutalika kwa mafunde kofunikira kwambiri pakufalikira kwa njira imodzi; kuwala kokha komwe kumachitika pamwamba pa kutalika kwa mafunde ozungulira kumatha kufalikira ngati njira imodzi mkati mwa pakatikati.
Kutayika kwa Kupindika: Kutayika kwa mphamvu yowonjezera komwe kumachitika chifukwa cha kupindika kwa ulusi wolimba; ulusi wosakhudzidwa ndi kupindika wa G.657 uli ndi magwiridwe antchito abwino kwambiri pa index iyi.
Chigawo cha Mawonekedwe: Kukula koyenera kwa malo ofalitsa kuwala mkati mwa pakati pa mawonekedwe amodzi, zomwe zimakhudza mwachindunji magwiridwe antchito pakati pa ulusi ndi zida zamagetsi.
Bandwidth (MHz·km): Gawo lalikulu la ulusi wa multimode, lomwe limazindikira mphamvu yotumizira ma data yakutali kwambiri.

2.2 Kuyerekeza kwa Ma Parameter a Mitundu Yaikulu ya Ulusi Pa Ma Waveband Asanu ndi Awiri

2.2.1 Multimode Fiber (yokhayokha ya 850 nm, yogwirizana pang'ono ndi mtunda waufupi wa 1310 nm)

Ulusi wa Multimode uli ndi vuto lalikulu la kufalikira kwa ma frequency pakati pa 1383/1490/1550/1625 nm ndipo sungathe kuthandizira kutumiza kwa mtunda wautali:

OM1 (62.5/125 μm): 3.0 dB/km @850 nm, bandwidth ya 200 MHz·km; 33 m pa 10G Ethernet.
OM2 (50/125 μm): 2.5 dB/km @850 nm, bandwidth ya 500 MHz·km; 82 m pa 10G Ethernet.
OM3/OM4 (Yokonzedwa ndi laser 50/125 μm): OM3:2000 MHz·km, 300 m@10G; OM4:4700 MHz·km,550 m@10G.
OM5: Yokonzedwa ndi mawindo awiri (850 nm + 953 nm), yokonzedwa kuti igwirizane ndi malo osungira deta a 400G omwe ali pafupi kwambiri.

2.2.2 G.652 Universal Single-Mode Fiber (Yonse ya ma waveband asanu ndi limodzi imagwirizana ndi G.652C/D)

G.652A/B (Pamwamba pa madzi): Sizingagwiritsidwe ntchito pa 1383 nm chifukwa cha kutayika kwa mayamwidwe opitilira 5 dB/km; 0.35 dB/km & zero dispersion @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 (Pamwamba pa madzi): Kuchotsa kwa OH⁻ kokonzedwa bwino, kochepera 0.4 dB/km@1383 nm, pali ma waveband asanu ndi limodzi, ulusi wofunikira wa metro ndi netiweki yolumikizira.
Kutalika kwa kutalika kwa malekezero ≤1260 nm, m'mimba mwake wa malo ochitira zinthu 9.2 μm, magwiridwe antchito okhazikika.

2.2.3 G.653 Ulusi Wosunthika Wofalikira

Malo ofalikira opanda ziro adasamutsidwira ku 1550 nm; kufalikira kwapafupifupi-zero pa C-band pomwe kufalikira kwakukulu pa 1310 nm, kosayenera kwa mafunde afupiafupi. Kusakaniza kwa Mafunde Anayi Kwambiri kumaletsa kugwiritsidwa ntchito kwake mu DWDM ya njira zambiri, kokha pa mzere wachinsinsi wautali kwambiri wa mafunde amodzi.

2.2.4 G.655 Ulusi Wosasinthika Wosafalikira ndi Zero

Kufalikira pang'ono kwabwino kotsalira pa 1550 nm kuti kulinganize bwino kufalikira ndi kuletsa kosakhala kwa mzere, kokha kwa DWDM ya msana wa C/L ndi chingwe cha submarine cha transoceanic; kusagwira bwino ntchito pa 1310 nm ndi pansi pa mafunde.

2.2.5 G.657 Ulusi Wosamva Kupindika (FTTH Indoor Drop Cable)

Yogawidwa mu A1 (kukonza bwino ma bend pang'ono) ndi B2 (radius yopindika pang'ono kwambiri); kutayika kochepa kwambiri pansi pa coiling yolimba, yogwirizana kwathunthu ndi ma waveband asanu ndi limodzi, zinthu zokhazikika za chingwe chotsitsa chamkati cha FTTH ndi mawaya anyumba a FTTR.

Kutalika kwa mafunde	850 nm	1310 nm	1383 nm (Pamwamba pa madzi otsika)	1490 nm	1550 nm	1625 nm
Kuchepetsa kwachizolowezi (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

Mutu 3: Zochitika pa Ntchito, Kusankha kwa Ulusi & Kuyerekeza kwa Machitidwe a Ma Waveband Asanu ndi Limodzi

3.1 850 nm: Kulumikizana kwa Deta Center & Campus LAN

Ulusi Wofananira: OM1~OM5 full-series multimode fiber yokha

Dongosolo Lopatsira: Gigabit/10G/25G Ethernet, Fiber Channel storage network

Ntchito Yachizolowezi: Chingwe cha Cabinet patch, kulumikizana kwa TOR-to-server komwe kumapezeka mkati mwa IDC, LAN ya pasukulupo ndi zingwe zoyendetsera ntchito zamafakitale, mtunda wotumizira: 30 m ~ 550 m

Ubwino ndi Chilema: Gwero la VCSEL lotsika mtengo komanso kapangidwe kosavuta; mtunda wocheperako wotumizira, ulusi wa single-mode ndi wofunikira pamene mtunda ukupitirira 550 m.

3.2 1310 nm: Metro Point-to-Point Private Line & Standard Fiber Test

Ulusi Wofananira: G.652 yonse & G.657; kawirikawiri G.653/G.655

Dongosolo Lopatsira: Mzere wachikhalidwe wa SDH/MSTP wobwerekedwa, mwayi wofikira ku ulusi wakuda, kuyesa kuvomereza ulusi wa OTDR

Ntchito Yachizolowezi: Mzere wachinsinsi wa banki pakati pa mizinda, mwayi wofikira wa optical woperekedwa ndi makampani, netiweki yofikira yapafupi, kufikira kwa single-span ≤80 km; relay yowonjezera ya electro-optic ya mtunda wautali

Ubwino ndi Chilema: Kusabalalika konse kumapewa kusokoneza zizindikiro pogwiritsa ntchito zida zokhwima; sizikupezeka pa EDFA all-optical amplification, pang'onopang'ono zimasinthidwa ndi 1550 nm DWDM kuti zigwiritsidwe ntchito pa intaneti yayitali.

3.3 1383 nm: Kuwonjezeka kwa Spectrum Yotsika Mtengo wa Metro CWDM

Ulusi Wofananira: G.652C/D & G.657 yokha; si yovomerezeka pa malo okwera kwambiri a G.652A/B

Dongosolo Lopatsira: 8/16-channel CWDM coarse wavelength division multiplexing

Ntchito Yachizolowezi: Netiweki yachinsinsi ya CATV ya mzinda, kukulitsa kwa ulusi wa ntchito zambiri pa malo opangira mafakitale, migodi ndi njira yowunikira chitetezo, kufikira pamlingo wapamwamba ≤40 km

Ubwino ndi ChilemaKugwiritsa ntchito bwino ma spectrum popanda kuyika ulusi watsopano; kusakhala ndi EDFA kumalepheretsa kufalikira kwa ulusi mtunda wautali kwambiri.

3.4 1490 nm: Kufikira kwa Ulusi wa FTTH PON Padziko Lonse

Ulusi Wofananira: G.652D ya thunthu lodyetsera + G.657 ya chingwe chogwetsera chamkati

Dongosolo Lopatsira: EPON/GPON/10G PON, single-fiber bidirectional (1490 pansi, 1310 mmwamba, 1550 kuti musankhe CATV overlay)

Ntchito Yachizolowezi: Kufikira pa intaneti yapakhomo, maukonde athunthu a FTTO a bizinesi, thunthu la ODN la 20 km + mkati mwa mzere wolowera mkati wa 5 km

Ubwino ndi Chilema: Kutumiza kwa OLT komwe kumachokera ku chogawanitsa chapadera, ulusi umodzi umathandizira ogwiritsa ntchito 64 mpaka 128; kumakhala maziko oyambira pakupanga ulusi wapadziko lonse lapansi.

3.5 1550 nm: Kutumiza kwa DWDM ya Long-Haul Backbone & CATV Optical

Ulusi Wofananira: G.652 ya metro DWDM, G.655 ya chingwe cha msana wa dziko lonse ndi sitima yapamadzi, G.653 ya chingwe chachinsinsi chautali wa mafunde amodzi

Dongosolo Lopatsira: Kuchulukitsa kwa DWDM dense wavelength division, analog CATV RF optical transport, 100G/400G high-speed backbone system

Ntchito Yachizolowezi: Chingwe cha trunk chapakati pa zigawo, chingwe chowunikira cha submarine chodutsa nyanja, netiweki ya CATV HFC yokhala ndi ulusi; kukulitsa kwa magetsi onse kothandizidwa ndi EDFA kumakwaniritsa kutumiza kwa makilomita chikwi popanda kubwerezabwereza

Ubwino ndi Chilema: Kuchepetsa ulusi pang'ono kuphatikiza ukadaulo wa EDFA wokhwima kumathandizira mphamvu ya ulusi umodzi wa terabit; mtengo wokwera wa zida zapamwamba za DWDM.

3.6 1625 nm: Kuwunika kwa Chingwe Chogwiritsidwa Ntchito & Kukula kwa DWDM ya L-band

Ulusi Wofananira: Mitundu yonse ya ulusi wa single-mode kuphatikiza G.652/G.655/G.657

Dongosolo Lopatsira: Pulatifomu yowunikira ya OTDR pa intaneti, zida zowonjezera za L-band DWDM

Ntchito Yachizolowezi: Kuyang'anira kwanzeru nthawi yeniyeni kwa chingwe cha msana chonyamula, chenjezo loyambirira losasokoneza la cholakwika chobisika cha chingwe, kukulitsa mphamvu pambuyo pa kukhuta kwa C-band spectrum

Ubwino ndi Chilema: Palibe ntchito yowunikira mawaya osaima, kuchepetsa nthawi yogwira ntchito yokonza mawaya; makamaka imagwiritsidwa ntchito pa netiweki ya akatswiri a O&M.

Mapeto

Ma waveband asanu ndi limodzi olumikizirana amapanga njira yogwiritsira ntchito netiweki yowunikira yokhala ndi magawo kutengera mawonekedwe a silika optical: 850 nm imalamulira ma waya amkati okhala ndi ma multimode afupiafupi; 1310 nm imagwira ntchito ngati mayeso oyambira a single-mode ndi ma wavelength a mzere wachinsinsi; zowonjezera za 1383 nm CWDM vacant spectrum; 1490 nm imayang'anira mwayi wolowera wa FTTH passive; 1550 nm imagwira ntchito ngati maziko a msana wautali komanso kutumiza kwa CATV; 1625 nm imagwira ntchito yowunikira ntchito ya ulusi pa intaneti yosasokoneza. Kusankha ulusi kumatsatira lamulo loyang'ana kutalika kwa ma wavelength: ulusi wa multimode wa maulalo afupiafupi a 850 nm, G.652D/G.657 ya netiweki yolowera ya 1310/1383/1490, ulusi wosakanikirana wa G.655 wosakhala zero wa 1550 long-haul DWDM, ulusi wosamva kupindika wa G.657 wa mawaya amkati a FTTH.

Motsogozedwa ndi kapangidwe ka netiweki ya 5G, kulumikizana kwakukulu kwa malo osungira deta komanso kuyika ulusi wa FTTR kunyumba, G.652D yotsika kwambiri komanso G.657 yolimba pang'onopang'ono imakhala njira zazikulu zogulitsira ulusi pamsika wapadziko lonse lapansi. Kufunika kwa CWDM kwa 1383 nm ndi L-band 1625 nm kumapitilira kukula chaka chilichonse; 850 nm multimode imasunga malo apakati kuti kulumikizana kwa liwiro lalifupi kukhale kolimba, pomwe 1550 nm imakhalabe zenera lagolide losasinthika kuti kulumikizana kwakutali kukhale kogwirizana ndi ukadaulo wakukula wa EDFA. Kuchepetsa, kufalikira, momwe fiber imagwirizanirana ndi malire oyenera a ma waveband asanu ndi limodzi kumapereka chithandizo chachikulu cha malingaliro pakusankha ma fiber specifications, kapangidwe ka ma network a optical ndi kukonza mphamvu ya netiweki yomwe ilipo.

Lumikizanani nafe, Pezani Zogulitsa Zabwino ndi Utumiki Wabwino.

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Werengani zambiri

2026-07-13

Ndi kufalikira kwakukulu kwa FTTH Fiber ku Home, AI computing data centers, 5G fronthaul, indoor comprehensive wiring, FPV drone miniature communication ndi renovation yamagetsi yofooka padziko lonse lapansi, ulusi wachikhalidwe wa G.652D single-mode uli ndi vuto la kutayika kwakukulu kwa kupindika ndi malo ochepa a mawaya, zomwe zimalepheretsa kwambiri kapangidwe ka maukonde olumikizirana othamanga kwambiri. Yopangidwa ndi ITU-T, ulusi wa G.657 series bend-insensitive single-mode wapangidwa mwapadera kuti uzitha kutembenuza ngodya zopapatiza, mawaya okhuthala ndi zochitika zazing'ono zapaipi. Mitundu itatu yayikulu yazinthu, ulusi wokhazikika wa G.657.A1 bend-resistant, ulusi wolimbikitsidwa wa G.657.A2 wolimbikira bend-resistant ndi ulusi wosasunthika wa G.657.B3, umagwiritsa ntchito ma profiles osiyanitsa a refractive index, ndipo amapereka kusiyana kwa ma grade mu bending radius yocheperako, mode field diameter ndi attenuation performance. Amaphimba zofunikira zonse kuyambira pa waya wapakhomo wotsika mtengo mpaka waya wapadera wocheperako.