Chii chinonzi G.654E faibha?

Mumakore achangopfuura, rudzi rutsva rweG.654E optical fiber rwakashandiswa mune mamwe marefu ehunde mitsetse uye yakawana migumisiro yakanaka. Saka chii chinonzi G.654E optical fiber? Ko G.654E faibha ichatsiva chinyakare G.652D faibha?

Pakati pemakore ekuma1980, kusangana nezvinodiwa zvekutaurirana kureba kwetambo dzepasi pemvura dzepasi pemvura, pure silica core single-mode optical fiber ine wavelength ye1550 nm yakagadzirwa. Attenuation yayo padyo newavelength iyi i10% yakaderera pane yeOptical fiberG.652 iri kuuya.

Mhando yefayibha iyi inotsanangurwa seG.654 faibha, uye zita rayo panguva iyoyo raiva “1550 nm wavelength minimum attenuation single-mode fiber.”

Mumakore ekuma1990, tekinoroji yeWDM yakatanga kushandiswa pasi pemvura optical communications systems. Tekinoroji yeWDM inobvumira kutapurirana kwemakumi kana mazana emagetsi emagetsi mufiber optical, uye nekushandiswa kwefiber optic amplifiers, masaini epamusoro-simba akawanda-wavelength optical anobatanidzwa mune optical fiber uye akaunzwa pamwe chete mune diki interface . kuratidza hunhu husina mutsara.

Nekuda kwekusagadzikana kweiyo optical fiber, kana iyo optical simba ichipinda mufiber inodarika imwe kukosha, iyo dhizaini yekushambadzira inoderera zvishoma nezvishoma nekuwedzera kweiyo optical simba inopinda mufiber.
Iyo isiri-linear mhedzisiro ye optical fiber ine hukama neiyo optical simba density yefiber core Kana iyo yekupinza yemagetsi inogara, nekuwedzera iyo inoshanda nzvimbo yefiber optical uye kuderedza kusimba kwemagetsi eiyo fiber core. pesvedzero yeasina mutsara maitiro ekutapurirana maitiro anogona kuderedzwa. Nokudaro, G.654 optical fiber yakatanga kuita nharo pamusoro pekuwedzera nzvimbo inoshanda.

Kuwedzera kwenzvimbo inoshanda yefiber kunotungamira mukuwedzera kweiyo cutoff wavelength, asi kuwedzera kweiyo cutoff wavelength kunofanirwa kudzorwa kuti kusakanganisa kushandiswa kwefiber muC band (1530nm ~ 1565nm) , Naizvozvo, iyo cutoff wavelength yeG.654 fiber yakagadzirirwa ku1530nm.

Muna 2000, ITU payakagadziridza G.654 optical fiber standard, yakashandura zita kuti "cutoff wavelength-shifted single-mode optical fiber."

Kusvikira ikozvino, G.654 optical fiber ine maitiro maviri ekuderera attenuation uye nzvimbo huru inoshanda. Mushure maizvozvi, G.654 optical fiber inoshandiswa pakukurukurirana kwetambo yepasi pemvura yakagadziridzwa zvakanyanya kutenderedza uye nzvimbo inoshanda, uye zvishoma nezvishoma yakagadziridzwa kuita zvikamu zvina zveA/B/C/D.