EDFA (Erbium-doped Fiber Amplifier), nke ewepụtara na 1987 maka iji azụmaahịa, bụ ihe njiri mara ngwa anya kacha arụ ọrụ na sistemụ DWDM nke na-eji eriri Erbium-doped dị ka ihe nkwalite ngwa anya iji kwalite akara ngosi.Ọ na-eme ka mmụba ozugbo maka akara nwere ọtụtụ wavelengths, nke bụ isi n'ime eriri abụọ.Otu bụ Conventional, ma ọ bụ C-band, ihe dị ka site na 1525 nm ruo 1565 nm, nke ọzọ bụ ogologo, ma ọ bụ L-band, ihe dịka 1570 nm ruo 1610 nm.Ka ọ dị ugbu a, ọ nwere eriri mgbapụta abụọ a na-ejikarị, 980 nm na 1480 nm.The 980nm band nwere akụkụ absorption dị elu nke a na-ejikarị na ngwa mkpọtụ dị ala, ebe band 1480nm nwere akụkụ nke ntanye dị ala mana nke sara mbara nke a na-ejikarị eme ihe maka ụda ike dị elu.
Ọgụgụ na-esonụ na-akọwa n'ụzọ zuru ezu ka EDFA amplifier si eme ka mgbama dị elu.Mgbe EDFA amplifier na-arụ ọrụ, ọ na-enye laser mgbapụta nwere 980 nm ma ọ bụ 1480 nm.Ozugbo laser mgbapụta na ntinye ntinye na-agafe na njikọ njikọ ahụ, a ga-agbanye ha n'elu eriri Erbium-doped.Site na mmekorita ya na ion doping, enwere ike nweta nkwalite mgbaàmà n'ikpeazụ.Nke a niile-optical amplifier ọ bụghị nanị na-ebelata ọnụ ahịa ahụ nke ukwuu mana ọ na-eme ka ọ dị mma maka nkwalite mgbama ngwa anya.Na nkenke, EDFA amplifier bụ ihe dị ịrịba ama na akụkọ ihe mere eme nke fiber optics nke nwere ike ịkwalite akara ozugbo na ọtụtụ wavelengths karịa otu eriri, kama ịgbasa mgbaama ngwa anya-electrical-optical.
Rofea Optoelectronics na-enye ahịrị ngwaahịa nke elektrọn optic modulators azụmahịa, ndị na-ahụ maka usoro, ndị na-ahụ maka foto, isi iyi ọkụ laser, dfb lasers, amplifiers, EDFAs, SLD laser, QPSK modulation, pulse laser, light detector, photodetector ziri ezi, semiconductor laser, laser ọkwọ ụgbọ ala. , fiber coupler , pulsed laser , fiber optic amplifier , ngwa anya ike mita , brọdband Laser , Tune laser , Optical delayelectro optic modulator , Optical detector , Laser diode driver , fiber amplifier , erbium doped fiber amplifier , laser light source , Light source laser.Anyị na-enyekwa ọtụtụ modulators dị iche iche maka nhazi, dị ka 1 * 4 array phase modulators, ultra-low Vpi, and ultra-high extinction ratio modulators, bụ isi eji na mahadum na institutes.Ha nwere a wavelength nso nke 780 nm ka 2000 nm na bandwit electro-optic ruo 40 GHz nwere obere ntinye mfu, obere Vp, elu PER.Kwesịrị ekwesị maka ngwa dị iche iche sitere na njikọ RF analọg na nkwukọrịta ọsọ ọsọ.
Oge nzipu: Eprel-21-2023