Amaza okukhanya yimitha ye-electromagnetic eveliswa zii-electron kwinkqubo yentshukumo yeathom. Ukushukuma kwee-electron kwiiathom zezinto ezahlukeneyo kwahlukile, ngoko ke amaza okukhanya eziwakhuphayo nawo ahlukile.
I-Spectrum yipatheni yokukhanya kwe-monochromatic eyahlulwe yinkqubo yokusabalalisa (njenge-prism kunye ne-grating) emva kokuba ukukhanya kwe-polychromatic kuhlulwe yinkqubo ye-dispersion system, ehlelwe ngokulandelelana ngokobude be-wavelength (okanye i-frequency). Ibizwa ngokuba yi-optical spectrum ngokupheleleyo.
Xa uvavanya i-tosa yokudlulisa, sidla ngokubandakanya iparameter, i-SMSR (iSide Mode Suppression Ratio). Umlinganiselo wexabiso eliphezulu lemowudi ephambili yamandla kumandla emowudi yecala libizwa ngokuba yi-side mode suppression ratio, nto leyo isalathiso esibalulekileyo sokusebenza kwemowudi yelongitudinal. Ngokuqhelekileyo, xa ulinganisa umlinganiselo wokulahlwa kwendlela yecala, kufuneka isetyenziswe kunye nomakishi kunye nohlalutyo kwi-analyzer ye-spectral. Umenzi usetyenziselwa ukuchonga incopho yamaza esembindini kunye neyona ncopho iphakamileyo yamaza. Funda iincopho ezimbini. Umlinganiselo wokulahlwa kwendlela yecala ngumahluko wenqanaba lamandla phakathi kweencopho ezimbini. Inokubalwa ngokusebenzisa iinketho ezincinci kuhlalutyo.
Ichazwa njengomlinganiselo we-primary longitudinal mode optical power M1 kunye nemodi yecala elipheleleyo lamandla optical M2 phantsi kweemeko zokumodareyitha ngokupheleleyo.
Ifomula yokubala yile:
SMSR=10*lg(M1/M2)
Kwi-transmitter optical, ngokuqhelekileyo ichazwa ukuba i-SMSR inkulu kune-30dB; oko kukuthi, amandla optical yemowudi ephambili yobude bungaphezulu kwe-1000 amaxesha awona mandla aphezulu endlela yecala. Ukuphakama kwexabiso le-SMSR, ngakumbi kugxininise indlela yokukhanya. Njengoko kuboniswe kumzobo ongezantsi: i-SMSR yi-51dB
Oku ngasentla yinkcazo yolwazi lwe-Lightwave olulethwe yi-Shenzhen HDV Phoelectron Technology Co., Ltd., engumenzi wonxibelelwano obonakalayo kwaye ivelisa inkampani yeemveliso zonxibelelwano. Wamkelekile ukuba undwendwele yethuiphepha lemveliso. Enkosi ngokufunda eli nqaku.