I kēia manawa, aia nā lasers FBG, FB a me DFB, i waena o lākou, ʻo ka lasers i hoʻohana pinepine ʻia ʻo FP a me DFB.
FBG: Fiber Bragg Grating.
FP: Fabry-Perot, Fabry-Perot Laser Diode
DFB: Hoʻolaha Manaʻo Manaʻo Laser, Hoʻolaha Manaʻo Laser Diode
No ka mea maʻamau i hoʻohana ʻia ʻo FB a me DFB. Hoʻokumu ʻia ka laser DFB ma luna o ka laser FP a hoʻohana i kahi mea kānana māmā (e like me ka hoʻohui ʻana i kahi puka me kahi ʻāpana e ālai ai i nā kukui ʻē aʻe a hele wale i ke kukui o kēia lōʻihi nalu), i loaʻa i ka hāmeʻa hoʻokahi wale nō puka puka longitudinal. (maamau hoʻokahi-mode pukana). Ma ke ʻano o ka spectrum, e hoʻopuka ʻo ia i ke kukui hawewe lōʻihi i loko o kahi ākea, ma waena o ke ʻano o ka lōʻihi hawewe longitudinal kiʻekiʻe loa, ʻo ia hoʻi ka inoa ma hope o kēia).
ʻO nā hiʻohiʻona o kēia ʻano ʻano mea: ka mana optical puka nui, ke kihi ʻokoʻa liʻiliʻi, ke ʻano haiki loa, Kiʻekiʻe ka nui o ka modulation, kūpono no ke kamaʻilio lōʻihi. Hoʻohana nui ʻia ia ma ka nalu nalu o 1550nm, a ʻoi aku ka nui ma luna o 2.5G.
ʻOkoʻa nā mea semiconductor a me ke ʻano resonator o nā mea ʻelua. He kumukūʻai nā lasers DFB a hoʻohana nui ʻia no nā modula optical me kahi mamao o ka lawe ʻana ma mua o 40km; ʻoiai he maʻalahi nā lasers FP a hoʻohana pinepine ʻia no nā modula optical me kahi mamao o ka lawe ʻana ma lalo o 40km. Hiki i nā mea hoʻohana ke koho e like me ke kūlana maoli. I kēia manawa, ʻo nā hāmeʻa ʻoi loa o kā mākou ʻoihana ʻo nā mea optical e hoʻohana ana i kēia mau hopena ʻelua.
ʻO ka mea i luna nei ka hoʻolauna ʻana i nā ʻano laser o nā modula SFP i lawe ʻia e Shenzhen Shenzhen HDV photoelectric Technology Co., Ltd. ʻO nā huahana module i hana ʻia e ka uhi ʻoihana nā modules fiber optical, Nā modules Ethernet, nā modules transceiver fiber optical, nā modules komo fiber optical, SSFP mau modula optical, aʻO nā fiber optical SFP, etc. Hiki i nā huahana module i luna ke hāʻawi i ke kākoʻo no nā hiʻohiʻona pūnaewele like ʻole. Hiki i kahi hui R&D ʻoihana a ikaika ke kōkua i nā mea kūʻai aku me nā pilikia ʻenehana, a hiki i kahi hui ʻoihana noʻonoʻo a ʻoihana ke kōkua i nā mea kūʻai aku e loaʻa nā lawelawe kiʻekiʻe i ka wā o ka kūkākūkā mua a me ka hana ma hope o ka hana. Welina mai iā ʻoekāhea iā mā˚ou no kēlā me kēia ʻano nīnau.
