Gịnị bụ aamplifier ngwa anya semiconductor
Igwe okwu ọkụ eletrik nke semiconductor bụ ụdị igwe okwu ọkụ eletrik nke na-eji igwe okwu ọkụ eletrik nke semiconductor gain. O yiri diode laser, ebe a na-eji mkpuchi semi-reflective dochie enyo dị na nsọtụ ala. A na-ebufe ìhè mgbaàmà site na onye nduzi otu ụdị semiconductor. Akụkụ ntụgharị nke onye nduzi mmiri bụ 1-2 micromita ma ogologo ya dị n'usoro nke 0.5-2mm. Ụdị igwe okwu ọkụ eletrik nwere nnukwu njikọ na mpaghara na-arụ ọrụ (mmụba), nke ugbu a na-amịpụta. Igwe okwu ọkụ eletrik a gbara n'ime ya na-emepụta ụfọdụ ntinye aka na eriri olu ọkụ eletrik, na-enye ohere mgbanwe anya nke eriri olu ọkụ eletrik gaa na eriri olu ọkụ eletrik. Uru kachasị elu na-eme mgbe ike foton dị ntakịrị karịa ike bandgap. A na-ejikarị igwe okwu ọkụ eletrik SOA eme ihe na sistemụ nkwukọrịta n'ụdị pigtails, yana ogologo oge ọrụ dị ihe dị ka 1300nm ma ọ bụ 1500nm, na-enye ihe dị ka 30dB nke uru.
IheSOA semiconductor ngwa anya amplifierbụ ngwaọrụ njikọ PN nwere nhazi olulu mmiri nke ụdị quantum. Mpụta ihu na-agbanwe ọnụọgụ nke ihe ndị dị na dielectric. Mgbe ìhè mkpali mpụga batara, a na-emepụta radieshon mkpali, na-enweta mmụba nke akara anya. Usoro mbufe ike atọ niile dị n'elu dị naNgwa ngwa ngwa SOA. Mmụba nke akara anya dabere na mwepụta ọkụ. Usoro nnabata na mwepụta ọkụ na-adị n'otu oge. Enwere ike iji nnabata ọkụ mgbapụta mee ka mgbake nke ndị na-ebu ya dị ngwa ngwa, n'otu oge ahụkwa, mgbapụta eletrik nwere ike izipu elektrọn na ọkwa ike dị elu (band conduction). Mgbe a na-eme ka redio mberede dịkwuo elu, ọ ga-emepụta mkpọtụ redio mberede. SOA amplifier dabere na chips semiconductor.
Ihe mejupụtara chips semiconductor bụ semiconductor compound, dịka GaAs/AlGaAs, InP/AlGaAs, InP/InGaAs na InP/InAlGaAs, wdg. Ndị a bụkwa ihe eji eme laser semiconductor. Nhazi waveguide nke SOA bụ otu ihe ahụ ma ọ bụ yie nke lasers. Ihe dị iche dị na lasers kwesịrị ịmepụta oghere resonant gburugburu gain medium iji mepụta ma nọgide na-enwe oscillation nke mgbaàmà anya. A ga-eme ka akara anya dịkwuo elu ọtụtụ ugboro n'ime oghere ahụ tupu e wepụta ya. NaMkpọlite SOA(ihe anyị na-atụle ebe a bụ naanị maka amplifiers ebili mmiri na-agagharị agagharị nke ejiri mee ihe n'ọtụtụ ngwa), ìhè kwesịrị ịgafe naanị otu ugboro na gain medium, na back reflection dị ntakịrị. Nhazi amplifier SOA nwere mpaghara atọ: Mpaghara P, Mpaghara I (arụ ọrụ oyi akwa ma ọ bụ node), na Mpaghara N. A na-ejikarị quantum Wells mee oyi akwa na-arụ ọrụ, nke nwere ike ime ka arụmọrụ mgbanwe fotoelectric ka mma ma belata oge njedebe.
Foto nke 1. Eriri laser nwere SOA agbakwunyere maka imepụta ihe nlele anya.
A na-etinye ya na nnyefe ọwa
A naghị eji SOA eme ihe naanị maka mmụba olu: enwere ike iji ha mee ihe n'ọhịa nke nkwukọrịta eriri optical, ngwa dabere na usoro ndị na-abụghị ahịrị dịka uru saturation ma ọ bụ polarization cross-phase, nke na-eji mgbanwe nke ntinye uche na SOA optical amplifier iji nweta ihe ngosi dị iche iche na-agbanwe agbanwe. Enwere ike itinye mmetụta ndị a na mbufe ọwa (ntụgharị ebili mmiri), mgbanwe usoro modulation, mgbake elekere, mmeghari akara na nnabata ụkpụrụ, wdg. na sistemụ multiplexing nkewa ebili mmiri.
Site na mmepe nke teknụzụ sekit agbakwunyere optoelectronic na mbelata ọnụ ahịa nrụpụta, mpaghara ngwa nke SOA semiconductor optical amplifier dị ka amplifiers bụ isi, ngwaọrụ anya ọrụ na akụkụ sistemụ ga-anọgide na-agbasa.
Oge ozi: Jun-23-2025