Yeyiphi i-fiber optical esetyenziselwa ulwakhiwo lomnatha wothumelo?
Kukho iindidi ezintathu eziphambili: G.652 ifayibha eqhelekileyo yemowudi enye, G.653 dispersion-shifted single-mode fiber and G.655 non-zero dispersion-shifted fiber.
G.652 ifayibha yendlela enyeinokusasazwa okukhulu kwi-C-band 1530 ~ 1565nm kunye ne-L-band 1565 ~ 1625nm, ngokubanzi i-17 ~ 22psnm • km, xa izinga lenkqubo lifikelela kwi-2.5Gbit / s okanye ngaphezulu, imbuyekezo yokusabalalisa iyafuneka, kwimbuyekezo ye-10Gbit / s Ixabiso lenkqubo liphezulu ngokwentelekiso, kwaye lolona hlobo luxhaphakileyo lwefayibha ebekwe kuthungelwano lothumelo okwangoku.
Ukusasazwa kweI-G.653 i-dispersion-shifted fiberkwi-C-band kunye ne-L-band ngokubanzi -1～3.5psnm•km, kunye ne-zero dispersion kwi-1550nm, kwaye izinga lenkqubo lingafikelela kwi-20Gbit/s kunye ne-40Gbit/s, engumgama omde omde. transmission Eyona fiber.Nangona kunjalo, ngenxa ye-zero-dispersion feature, xa i-DWDM isetyenziselwa ukwandiswa, imiphumo engabonakaliyo iya kwenzeka, ekhokelela kwi-crosstalk yesignali, okubangelwa ukuxuba amaza amane e-FWM, ngoko i-DWDM ayifanelekanga.
G.655 non-zero dispersion-shifted fiber: I-G.655 i-non-zero ye-dispersion-shifted fiber ine-dispersion ye-1 ukuya kwi-6 psnm•km kwi-C-band, kwaye ngokubanzi i-6-10 psnm•km kwi-L-band.Ukusasazwa kuncinci kwaye kunqanda i-zero.Ummandla we-dispersion awugcini nje ukucinezela i-FWM yokuxuba amaza amane, ingasetyenziselwa ukwandiswa kwe-DWDM, kodwa inokuvula iinkqubo zesantya esiphezulu.I-fiber entsha ye-G.655 inokwandisa indawo esebenzayo kwi-1.5 ukuya ku-2 amaxesha e-fiber eqhelekileyo, kunye nommandla omkhulu osebenzayo unokunciphisa amandla ombane!
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