Munyika ye optical fiber communication, kusarudzwa kwechiedza chewavelength kwakafanana nekugadzirisa chiteshi cheredhiyo — chete nekusarudza "frequency" chaiyo ndipo panogona kufambiswa zviratidzo zvakajeka uye zvakadzikama. Sei mamwe mamodule optical aine chinhambwe chekufambisa chinongosvika 500 metres, nepo mamwe achigona kureba mazana emakiromita? Chakavanzika chiri mu "ruvara" rwechiedza—ndiko kuti, chaizvoizvo, kureba kwechiedza.
Mumazuva ano optical communication network, optical modules ane akasiyana wavelengths anotamba zvakasiyana zvakasiyana. Iwo matatu epakati wavelengths — 850nm, 1310nm, uye 1550nm — inoumba hwaro hwaro hwekutaurirana kwemaziso, imwe neimwe inyanzvi pakutapurirana chinhambwe, hunhu hwekurasikirwa, uye mamiriro ekushandisa.
Sei akawanda wavelengths achidiwa?
Mhedzisiro yekusiyana kwewavelength mune optical module iri mumatambudziko maviri makuru mufiber optic kutapurirana: kurasikirwa uye kupararira. Kana masaini emaziso achifambiswa mumafiber optical, simba attenuation (kurasikirwa) kunoitika nekuda kwekutorwa, kupararira, uye kubuda kwepakati. Panguva imwecheteyo, iyo isina kuenzana yekuparadzira kumhanya yeakasiyana wavelength zvikamu zvinokonzeresa chiratidzo pulse kupararira (kupararira). Izvi zvakapa mhinduro kune akawanda wavelength mhinduro:
850nm bhendi: inonyanya kushanda mumultimode optical fibers, ine madaro ekutakurisa anowanzo kubva kumazana mashoma emamita (se~550 metres), uye ndiro simba guru rekufambisa nhambwe pfupi (senge mukati menzvimbo dzedata).
1310nm bhendi: inoratidza yakaderera kupararira maitiro mune yakajairwa single-mode fibers, ine madaro ekufambisa anosvika makumi emakiromita (akadai ~ makiromita makumi matanhatu), zvichiita kuti ive musana wekufambiswa kwepakati.
1550nm bhendi: Iine yakaderera attenuation mwero (inenge 0.19dB/km), theoretical kutapurirana chinhambwe chinogona kudarika 150 makiromita, zvichiita kuti ive mambo wekureba uye kunyange wekupedzisira kureba kwekufambisa.
Kusimuka kwewavelength division multiplexing (WDM) tekinoroji yakawedzera zvakanyanya kugona kwemafiber optical. Semuenzaniso, single fiber bidirectional (BIDI) optical modules inowana bidirectional kutaurirana pane imwe chete fiber kuburikidza nekushandisa mawavelengths akasiyana (akadai se1310nm / 1550nm musanganiswa) pakutumira uye kugamuchira magumo, zvakanyanya kuchengetedza fiber zviwanikwa. More advanced Dense Wavelength Division Multiplexing (DWDM) tekinoroji inogona kuwana yakatetepa wavelength spacing (yakadai se100GHz) mumabhendi chaiwo (akadai seO-band 1260-1360nm), uye faibha imwe chete inogona kutsigira akawanda kana mazana emawavelength chiteshi, ichiwedzera huwandu hwese hwekutapurirana huwandu hweiyo unleashings yeFiber yakazara.
Nzira yesayenzi yekusarudza wavelength ye optical modules?
Kusarudzwa kwewavelength kunoda kutariswa kwakadzama kwezvinhu zvinotevera zvakakosha:
Chinhambwe chekufambisa:
- Chinhambwe chipfupi (≤ 2km): zviri nani 850nm (multimode fiber).
- Medium kureba (10-40km): yakakodzera 1310nm (single-mode fiber).
- Kureba kureba (≥ 60km): 1550nm (single-mode fiber) inofanira kusarudzwa, kana kushandiswa pamwe chete neoptical amplifier.
Capacity inodiwa:
- Bhizinesi rakajairika: Fixed wavelength modules yakakwana.
- Huru hukuru, hurefu-density kutapurirana: DWDM/CWDM tekinoroji inodiwa. Semuenzaniso, 100G DWDM system inoshanda muO-band inogona kutsigira akawanda epamusoro-density wavelength chiteshi.
Zvinotemerwa nemitengo:
- Fixed wavelength module: Yekutanga unit mutengo wakaderera, asi akawanda wavelength modhi yezvisara inoda kuiswa.
- Tunable wavelength module: Iyo yekutanga investimendi yakakwira, asi kuburikidza nesoftware tuning, inogona kuvhara akawanda wavelengths, kurerutsa masitoreti manejimendi, uye nekufamba kwenguva, kuderedza kushanda uye kugadzirisa kuoma uye mutengo.
Application Scenario:
- Data Center Interconnection (DCI): Yakakwira density, yakaderera-simba DWDM mhinduro dzakanyanya.
- 5G fronthaul: Nekuda kwepamusoro kwemari, latency, uye kuvimbika, giredhi remabhizimisi rakagadzirirwa single fiber bidirectional (BIDI) modules isarudzo yakajairika.
- Enterprise park network: Zvichienderana nedaro uye bandwidth zvinodiwa, yakaderera-simba, yepakati kusvika kupfupi kure CWDM kana yakagadziriswa wavelength module inogona kusarudzwa.
Mhedziso: Tekinoroji Evolution uye Remangwana Kufunga
Iyo optical module tekinoroji inoenderera mberi nekudzokorora nekukurumidza. Midziyo mitsva yakadai sewavelength selective switches (WSS) uye liquid crystal pasilicon (LCoS) iri kufambisa kuvandudzwa kwemamwe anochinjika optical network architecture. Mitsva inonangana nemabhendi chaiwo, akadai seO-bhendi, ari kugara achinatsiridza mashandiro, sekuderedza zvakanyanya mashandisirwo emagetsi emodule uku uchichengetedza yakakwana yechiratidzo-kune ruzha ratio (OSNR) muganho.
Mukuvakwa kwenetiweki mune ramangwana, mainjiniya haangofanire kuverenga chete nhanho yekutapurirana kana uchisarudza wavelengths, asi zvakare kuongorora zvizere mashandisiro emagetsi, tembiricha inoshanduka, deployment density, uye yakazara lifecycle kushanda uye kugadzirisa mari. Yakakwirira kuvimbika optical modules inogona kushanda zvakadzikama kwemakumi emakiromita munzvimbo dzakanyanya (senge -40 ℃ kutonhora kwakanyanya) ari kuita tsigiro yakakosha yenzvimbo dzakaoma dzekutumira (senge zviteshi zvekure kure).
Nguva yekutumira: Oct-17-2025