Ke lōʻihi ka lōʻihi o ka hoʻouna ʻana (ʻoi aku ma mua o 100 km), e loaʻa i ka hōʻailona optical ka pohō nui.I ka wā ma mua, hoʻohana maʻamau ka poʻe i nā mea hoʻopiʻi optical e hoʻonui i ka hōʻailona optical.Loaʻa i kēia ʻano mea paahana kekahi mau palena i nā hoʻohana pono.Hoʻololi ʻia e ka mea hoʻonui fiber optical.Hōʻike ʻia ke kumu hana o ka optical fiber amplifier ma ke kiʻi ma lalo nei.Hiki iā ia ke hoʻonui pololei i ka hōʻailona optical me ka hele ʻole i ke kaʻina o ka hoʻololi ʻana i ka optical-electrical-optical.
Pehea ka hana o ka mea hoʻonui fiber?
Ke lōʻihi ka lōʻihi o ka hoʻouna ʻana (ʻoi aku ma mua o 100 km), e loaʻa i ka hōʻailona optical ka pohō nui.I ka wā ma mua, hoʻohana maʻamau ka poʻe i nā mea hoʻopiʻi optical e hoʻonui i ka hōʻailona optical.Loaʻa i kēia ʻano mea paahana kekahi mau palena i nā hoʻohana pono.Hoʻololi ʻia e ka mea hoʻonui fiber optical.Hōʻike ʻia ke kumu hana o ka optical fiber amplifier ma ke kiʻi ma lalo nei.Hiki iā ia ke hoʻonui pololei i ka hōʻailona optical me ka hele ʻole i ke kaʻina o ka hoʻololi ʻana i ka optical-electrical-optical.
He aha ke ʻano o ka fiber amplifier i laila?
1. Erbium-doped fiber amplifier (EDFA)
ʻO ka Erbium-doped fiber amplifier (EDFA) ka mea nui i haku ʻia me ka fiber erbium-doped, puna kukui pump, mea hoʻohui optical, mea hoʻokaʻawale optical, a me ka kānana optical.I waena o lākou, ʻo ka fiber erbium-doped kahi mea nui o ka hoʻonui ʻana i ka hōʻailona optical, kahi i hoʻohana nui ʻia e hoʻokō i ka 1550 nm Band optical signal amplification, no laila, ʻoi aku ka maikaʻi o ka erbium-doped fiber amplifier (EDFA) i ka hawewe lōʻihi o 1530 nm a 1565 nm.
Advantage:
ʻO ka hoʻohana ʻana i ka mana pump kiʻekiʻe loa (ʻoi aku ma mua o 50%)
Hiki iā ia ke hoʻonui pololei a i ka manawa like i ka hōʻailona optical i ka band 1550 nm
Loaʻa ma luna o 50 dB
ʻO ka walaʻau haʻahaʻa i ka lawe ʻana i kahi mamao lōʻihi
hemahema
ʻOi aku ka nui o ka Erbium-doped fiber amplifier (EDFA).
ʻAʻole hiki i kēia mea hana ke hana me ka hui pū ʻana me nā lako semiconductor ʻē aʻe
2. Hoʻonui Raman
ʻO ka Raman amplifier wale nō ka mea hiki ke hoʻonui i nā hōʻailona optical i ka band 1292 nm ~ 1660 nm.Hoʻokumu ʻia kāna kumu hana i ka hopena hoʻopuehu Raman i hoʻoulu ʻia i ka fiber quartz.E like me ka mea i hōʻike ʻia ma ke kiʻi ma lalo nei, i ka wā e huki ʻia ai ke kukui pahū I ka wā e loaʻa ai i ka hōʻailona māmā nāwaliwali i ka Mann i ka bandwidth a me ka nalu kukui ikaika i ka manawa like i hoʻouna ʻia i loko o ka fiber optical, e hoʻonui ʻia ka hōʻailona māmā nāwaliwali ma muli o ka hopena hoʻopuehu Raman. .
Advantage:
Laulā o nā pūʻulu pili
Hiki ke hoʻohana ʻia i loko o ka hoʻokomo ʻia ʻana o ka hoʻohana ʻana i ka fiber cabling
Hiki ke hoʻohui i nā hemahema o ka erbium-doped fiber amplifier (EDFA)
Haʻahaʻa mana hoʻohana, haʻahaʻa crosstalk
hemahema:
Kiʻekiʻe pump mana
Pūnaehana mana loaʻa paʻakikī
walaʻau
3. Semiconductor optical fiber amplifier (SOA)
Hoʻohana ka Semiconductor optical fiber amplifier (SOA) i nā mea semiconductor e like me ka loaʻa ʻana o ka media, a ʻo kā lākou hoʻokomo hōʻailona optical a me nā mea hoʻopuka i loaʻa nā pale anti-reflection e pale ai i ka noʻonoʻo ʻana i ka maka hope o ka amplifier a hoʻopau i ka hopena o ka resonator.
Advantage:
liʻiliʻi leo
Haʻahaʻa puka mana
He liʻiliʻi ka bandwidth gain, akā hiki ke hoʻohana ʻia i nā hui like ʻole
ʻOi aku ka maikaʻi ma mua o ka erbium-doped fiber amplifier (EDFA) a hiki ke hoʻohana ʻia me nā lako semiconductor.
ʻEhā mau hana laina ʻole o ka modulation cross-gain, cross-phase modulation, ka hoʻololi ʻana o ka nalu a me ka hui ʻana o nā nalu ʻehā hiki ke hoʻokō ʻia.
hemahema:
ʻAʻole kiʻekiʻe ka hana e like me ka erbium-doped fiber amplifier (EDFA)
Ka leo nui a me ka waiwai haʻahaʻa
Ka manawa hoʻouna: Sep-17-2021