Kureba kwekutumirwa kwema optical modules kunodzorwa nekusanganiswa kwezvinhu zvepanyama nezveinjiniya, izvo pamwe chete zvinosarudza daro guru iro masaini e optical anogona kutapurirwa zvinobudirira kuburikidza ne optical fiber. Chinyorwa chino chinotsanangura zvimwe zvezvinhu zvinowanzo kanganisa.
Kutanga,mhando uye mhando yechiedza chemazisoMapurogiramu ekukurumidza kusvika kune dzimwe nzvimbo anowanzo shandisa mari shomaMa LED kana VCSEL lasers, nepo ma transmissions epakati neparefu achivimba nekushanda kwepamusoroMalaser eDFB kana EMLSimba rekuburitsa, upamhi hwespectral, uye kugadzikana kwewavelength zvinokanganisa zvakananga kugona kwekutumira.
Chepiri,kuderedza fiberndicho chimwe chezvinhu zvikuru zvinoderedza daro rekutumira. Sezvo masaini emaziso achipararira kuburikidza nefiber, anoderera zvishoma nezvishoma nekuda kwekunyudzwa kwezvinhu, kupararira kweRayleigh, uye kurasikirwa kwekukombama. Kune fiber yemode imwe chete, kuderedzwa kwakajairika kunenge kuri pamusoro pe0.5 dB/km pa1310 nmuye inogona kuderera kusvika0.2–0.3 dB/km pa1550 nmKusiyana neizvi, fiber ye multimode inoratidza kuderera kwakanyanya kwe3–4 dB/km pa850 nm, ndosaka masisitimu e multimode achiwanzogumira pakutaurirana kunosvika kure kubva pamamita mazana akawanda kusvika pamakiromita angangoita maviri.
Pamusoro pe,mhedzisiro yekupararirazvinoderedza zvakanyanya daro rekutumirwa kwemasaini emagetsi anomhanya zvakanyanya. Kupararira—kusanganisira kupararira kwezvinhu uye kupararira kwemafungu—kunokonzera kuti mapuroteni emagetsi awedzere panguva yekutumirwa, zvichikonzera kupindirana kwezviratidzo zvepakati. Mhedzisiro iyi inonyanya kuipa pahuwandu hwedata remagetsi.10 Gbps zvichikwiraKuti kuderedze kupararira, masisitimu ekufamba kwenguva refu anowanzo shandisafaibha inobhadharisa kupararira (DCF)kana kushandisama lasers akamanikana-ane upamhi hwakasanganiswa nemafomati epamusoro ekushandura.
Panguva imwe chete,wavelength yekushandaye optical module ine hukama hwakanyanya nedaro rekutumirwa.bhendi re850 nminonyanya kushandiswa pakutumira zvinhu zviri pedyo nepedyo kuburikidza nefiber ye multimode.bhendi re1310 nm, inoenderana nehwindo re zero-dispersion re single-mode fiber, yakakodzera kushandiswa kwepakati nepakatimakiromita gumi kusvika makumi mana. IyoBhendi re1550 nminopa kuderedzwa kwakaderera uye inoenderana nema amplifiers efayibha ane erbium-doped (EDFAs), zvichiita kuti ishandiswe zvakanyanya pakutumira zvinhu zvinofamba kwenguva refu uye zvakanyanya kupfuuramakiromita makumi mana, zvakaita se80 km kana kunyange 120 kmzvinongedzo.
Kumhanya kwekutumira pachako kunoisawo muganho wekusiyana padaro. Mwero wepamusoro wedata unoda kuti signal-to-noise ratios ive yakasimba pareceiver, zvichikonzera kudzikira kwekunzwa kwereceiver uye kupfupika kwekusvika kwayo. Semuenzaniso, optical module inotsigira40 km pa 1 Gbpszvinogona kuganhurirwa kupasi pe10 km pa100 Gbps.
Uyezve,zvinhu zvakatipoteredza— zvakaita sekuchinja-chinja kwekushisa, kukotama kwefiber zvakanyanya, kusvibiswa kweconnector, uye kukwegura kwezvikamu—zvinogona kukonzera kurasikirwa kana kuratidzwa kwechiedza, zvichideredza daro rekutumirana kwemashoko. Zvakakoshawo kuziva kuti kutaurirana kwefiber-optic hakusi nguva dzose "kupfupika, kuri nani." Kazhinji panechinodiwa chidiki chekufambisa daro(semuenzaniso, mamodule emodhi imwe chete anowanzoda ≥2 metres) kudzivirira kuratidzwa kwakanyanya kwemaziso, izvo zvinogona kukanganisa kunobva laser.
Nguva yekutumira: Ndira-29-2026