Ngwa ngwa anya n'ọhịa nke nkwukọrịta eriri anya
An ihe na-eme ka ihe dịkwuo ọkụbụ ngwaọrụ nke na-eme ka akara ngosi anya dịkwuo elu. N'ihe gbasara nkwukọrịta eriri optical, ọ na-arụ ọrụ ndị a karịsịa: 1. Ịkwalite na ime ka ike anya dịkwuo elu. Site n'itinye amplifier optical n'akụkụ ihu nke transmitter optical, ike optical na-abanye na eriri ahụ nwere ike ịbawanye. 2. Mmụba relay n'ịntanetị, na-anọchi ndị na-emegharị ihe dị adị na sistemụ nkwukọrịta eriri optical; 3. Mmụba tupu oge eruo: Tupu fotodetector na njedebe nnata, a na-eme ka akara ìhè na-adịghị ike dịkwuo elu iji mee ka mmetụta nnata dịkwuo mma.
Ugbu a, ihe nkwado ọkụ eletrik a na-ejikarị eme ihe na nkwukọrịta eriri anya gụnyere ụdị ndị a: 1. ihe nkwado ọkụ eletrik semiconductor (SOA Optical amplifier)/Nkwupụta ụda laser Semiconductor (SLA Optical amplifier); 2. Nkwupụta ụda eriri dị ụkọ, dịka nkwupụta ụda eriri e ji bait mee (EDFA Optical amplifier), wdg. 3. Ngwa amplifiers eriri na-abụghị nke eriri, dịka ngwa amplifiers eriri Raman, wdg. Nke a bụ obere okwu mmalite n'otu n'otu.
1. Igwe amplifier optical Semiconductor: N'ọnọdụ ngwa dị iche iche yana ntụgharị ihu dị iche iche, laser semiconductor nwere ike imepụta ụdị amplifier optical semiconductor dị iche iche. Ọ bụrụ na ọkụ eletrik nke laser semiconductor dị ala karịa oke ya, ya bụ, enweghị laser ọ bụla, n'oge a, a na-etinye akara ngosi anya n'otu nsọtụ. Ọ bụrụhaala na ugboro ugboro nke akara ngosi anya a dị nso na etiti spectral nke laser ahụ, a ga-eme ka ọ dịkwuo elu ma wepụta ya site na nsọtụ nke ọzọ. Ụdị aamplifier ngwa anya semiconductora na-akpọ ya Fabry-Perrop optical amplifier (FP-SLA). Ọ bụrụ na laser ahụ gbagọrọ agbagọ n'elu oke, ntinye mgbaàmà optical otu-mode adịghị ike site n'otu nsọtụ, ma ọ bụrụhaala na ugboro ole nke mgbaàmà optical a dị n'ime ụdị laser multimode a, a ga-eme ka mgbaàmà optical dịkwuo elu ma kpọchie ya na ụdị ụfọdụ. A na-akpọ ụdị amplifier optical a amplifier ụdị injaction-locked (IL-SLA). Ọ bụrụ na nsọtụ abụọ nke laser semiconductor ejiri enyo kpuchie ma ọ bụ wụpụ ya na oyi akwa nke ihe nkiri mgbochi-reflection, na-eme ka mmịpụta ya dị obere ma ghara inwe ike ịmepụta oghere resonant Fabry-Perrow, mgbe akara optical gafere na oyi akwa waveguide na-arụ ọrụ, a ga-eme ka ọ dịkwuo elu mgbe ọ na-eme njem. Ya mere, a na-akpọ ụdị amplifier optical a amplifier optical ụdị traveling wave (TW-SLA), a na-egosikwa nhazi ya na eserese na-esonụ. Ebe ọ bụ na bandwit nke amplifier optical ụdị ebili mmiri na-agagharị bụ usoro atọ nke nha karịa nke amplifier ụdị Fabry-Perot, bandwit 3dB ya nwekwara ike iru 10THz, ọ nwere ike ime ka akara ngosi anya nke ugboro dị iche iche dịkwuo elu ma bụrụ amplifier optical dị mma nke ukwuu.
2. Amplifier eriri e ji ihe e ji ihe mee: O nwere akụkụ atọ: Nke mbụ bụ eriri e ji ihe mee nke nwere ogologo dị site na ọtụtụ mita ruo iri mita. Ihe ndị a na-adịghị mma bụ ion ụwa dị ụkọ, nke na-emepụta ihe na-eme ka laser rụọ ọrụ; nke abụọ bụ isi iyi mgbapụta laser, nke na-enye ike nke ogologo ebili mmiri kwesịrị ekwesị iji kpalie ion ụwa dị ụkọ iji nweta mmụba nke ìhè. Nke atọ bụ njikọ, nke na-eme ka ìhè mgbapụta na ìhè mgbaàmà jikọọ na ihe na-eme ka eriri anya dị nro rụọ ọrụ. Ụkpụrụ ọrụ nke amplifier eriri yiri nke laser siri ike. Ọ na-eme ka ọnọdụ nkesa ọnụọgụ mkpụrụ ndụ ihe nketa gbanwee n'ime ihe laser na-arụ ọrụ ma na-emepụta radieshon kpaliri. Iji mepụta ọnọdụ nkesa ntụgharị ọnụọgụ mkpụrụ ndụ ihe nketa kwụsiri ike, ihe karịrị ọkwa ike abụọ kwesịrị itinye aka na mgbanwe anya, nke na-abụkarị sistemụ ọkwa atọ na ọkwa anọ, yana inye ike na-aga n'ihu site na isi iyi mgbapụta. Iji nye ike nke ọma, ogologo ebili mmiri nke photon mgbapụta kwesịrị ịdị mkpụmkpụ karịa nke photon laser, ya bụ, ike nke photon mgbapụta kwesịrị ịdị ukwuu karịa nke photon laser. Ọzọkwa, oghere resonant na-emepụta nzaghachi dị mma, ya mere enwere ike ịmepụta amplifier laser.
3. Ngwa ngwa eriri na-abụghị nke eriri: Ma ngwa ngwa eriri na-abụghị nke eriri na ngwa ngwa eriri erbium na-adaba n'okpuru ụdị ngwa ngwa eriri. Agbanyeghị, nke mbụ na-eji mmetụta na-abụghị nke eriri quartz, ebe nke ikpeazụ na-eji eriri quartz erbium-doped iji rụọ ọrụ na mgbasa ozi na-arụ ọrụ. Eriri optical quartz nkịtị ga-emepụta mmetụta siri ike na-abụghị nke eriri n'okpuru ọrụ nke ìhè mgbapụta siri ike nke ogologo ebili mmiri kwesịrị ekwesị, dị ka Raman scattering (SRS), Brillouin scattering (SBS) kpaliri, na mmetụta ngwakọta ebili mmiri anọ. Mgbe a na-ebufe mgbaàmà ahụ n'akụkụ eriri optical yana ọkụ mgbapụta, enwere ike ịbawanye ìhè mgbaàmà ahụ. Ya mere, ha na-emepụta ngwa ngwa eriri Raman (FRA), ngwa ngwa Brillouin (FBA), na ngwa ngwa parametric, nke niile bụ ngwa ngwa eriri kesara.
Nchịkọta: Ụzọ mmepe nke ihe niile na-eme ka amplifiers anya dịkwuo mma bụ uru dị elu, ike mmepụta dị elu, na ụda mkpọtụ dị ala.
Oge ozi: Mee-08-2025