Semiconductor optical amplifier inoita sei kuti amplification ibudirire?

Zvinoita seiamplifier ye optical ye semiconductorkuwana kuwedzera?

Mushure mekuuya kwenguva yekukurukurirana kwefiber ye optical ine simba guru, tekinoroji ye optical amplification yakakurumidza kukura.Ma amplifiers e opticalkuwedzera masaini emagetsi anopinza zvichibva pamwaranzi inosimudzirwa kana kupararira kunosimudzirwa. Zvichienderana nepfungwa yekushanda, ma amplifiers emagetsi anogona kukamurwa kuita ma amplifiers emagetsi e semiconductor (SOAuyema amplifiers e optical fiberPakati pavo,ma amplifiers e optical e semiconductorAnoshandiswa zvakanyanya mukutaurirana kwemaziso nekuda kwezvakanaka zve wide gain band, kubatana kwakanaka uye wide wavelength range. Anoumbwa nenzvimbo dzinoshanda uye dzisingashande, uye nzvimbo inoshanda ndiyo nzvimbo inowana simba. Kana chiratidzo chechiedza chikapfuura nepakati penzvimbo inoshanda, chinoita kuti maerekitironi arasikirwe nesimba uye adzokere kuground state muchimiro chema photon, ane wavelength yakafanana nechiratidzo chechiedza, nokudaro achiwedzera chiratidzo chechiedza. Semiconductor optical amplifier inoshandura semiconductor carrier kuita reverse particle ne driving current, inowedzera amplitude ye injected seed light, uye inochengetedza hunhu hwepakutanga hwe injected seed light senge polarization, line width uye frequency. Nekuwedzera kwe working current, output optical power inowedzerawo mune imwe functional relationship.

Asi kukura uku hakusi kusina miganhu, nekuti ma semiconductor optical amplifiers ane gain saturation phenomenon. Chiitiko ichi chinoratidza kuti kana simba re optical rekupinda rikaramba riripo, gain inowedzera nekuwedzera kwehuwandu hwe carrier carrier, asi kana huwandu hwe carrier carrier hwakanyanya kukura, gain inoguta kana kutodzikira. Kana huwandu hwe carrier carrier hwakanyanya kukura, simba re output rinokwira nekuwedzera kwe simba re input, asi kana simba re optical rekupinda rakanyanya kukura, carrier consumption rate inokonzerwa ne excited radiation yakakura zvakanyanya, zvichikonzera gain saturation kana kudzikira. Chikonzero che gain saturation phenomenon ikudyidzana pakati pema electrons nema photons ari munzvimbo inoshanda. Ingave ma photons anogadzirwa mu gain medium kana ma outer photons, mwero unotorwa ne stimulated radiation inobatanidzwa ne mwero unozadzwa ne carriers kusvika padanho resimba rinoenderana nenguva. Kuwedzera kune stimulated radiation, mwero unotorwa nezvimwe zvinhu unochinjawo, izvo zvinokanganisa gain saturation.

Sezvo basa guru re semiconductor optical amplifiers riri linear amplification, kunyanya kuti iwedzere simba, inogona kushandiswa se power amplifiers, line amplifiers uye preamplifiers mumasystem ekutaurirana. Pamagumo ekutumira, semiconductor optical amplifier inoshandiswa se power amplifier kuwedzera simba rekubuda pamagumo ekutumira esystem, izvo zvinogona kuwedzera zvakanyanya relay distance ye system trunk. Mumutsetse wekutumira, semiconductor optical amplifier inogona kushandiswa se linear relay amplifier, kuitira kuti transmission regenerative relay distance iwedzere zvakare nekukuruka uye nemiganhu. Pamagumo ekugamuchira, semiconductor optical amplifier inogona kushandiswa se preamplifier, izvo zvinogona kuvandudza zvakanyanya kunzwa kwemugamuchiri. Hunhu hwe gain saturation hwe semiconductor optical amplifiers huchaita kuti gain per bit ive nechekuita ne bit sequence yapfuura. Pattern effect pakati pe small channels inogonawo kunzi cross-gain modulation effect. Iyi nzira inoshandisa avhareji ye statistical ye cross-gain modulation effect pakati pe multiple channels uye inounzira medium intensity continuous wave mukuita kuchengetedza beam, nokudaro kudzvanya total gain ye amplifier. Zvadaro cross-gain modulation effect pakati pe channels inoderedzwa.

MaSemiconductor optical amplifiers ane chimiro chiri nyore, nyore kubatanidzwa, uye anogona kuwedzera masaini e optical ewavelengths akasiyana, uye anoshandiswa zvakanyanya mukubatanidzwa kwemarudzi akasiyana-siyana ema lasers. Parizvino, tekinoroji yekubatanidza laser yakavakirwa pa semiconductor optical amplifiers inoramba ichikura, asi kuedza kuchiri kudiwa muzvikamu zvitatu zvinotevera. Chimwe ndechekuderedza kurasikirwa kwe coupling ne optical fiber. Dambudziko guru re semiconductor optical amplifier nderekuti kurasikirwa kwe coupling ne fiber kwakakura. Kuti kuvandudza coupling efficiency, lenzi inogona kuwedzerwa kune coupling system kuderedza kurasikirwa kwe reflection, kuvandudza symmetry ye beam, uye kuwana high efficiency coupling. Chechipiri ndechekuderedza polarization sensitivity ye semiconductor optical amplifiers. Hunhu hwe polarization hunonyanya kureva polarization sensitivity ye incident light. Kana semiconductor optical amplifier isina kugadziriswa zvakanyanya, effective bandwidth ye gain ichaderedzwa. Quantum well structure inogona kuvandudza zvinobudirira kugadzikana kwe semiconductor optical amplifiers. Zvinokwanisika kudzidza quantum well structure iri nyore uye yepamusoro kuderedza polarization sensitivity ye semiconductor optical amplifiers. Chechitatu ndechekugadzirisa integrated process. Parizvino, kubatanidzwa kwema amplifiers e semiconductor optical nema lasers kwakaoma uye kwakaoma mukugadzirisa tekinoroji, zvichikonzera kurasikirwa kukuru mukutumirwa kwechiratidzo che optical uye kurasikirwa nekuisa mudziyo, uye mutengo wacho wakakwira zvakanyanya. Saka, tinofanira kuedza kugadzirisa chimiro chemidziyo yakabatanidzwa uye kuvandudza kunyatsoita kwemidziyo.

Mu tekinoroji yekutaurirana kwe optical, tekinoroji ye optical amplification ndeimwe yetekinoroji dzinotsigira, uye tekinoroji ye semiconductor optical amplifier iri kukura nekukurumidza. Parizvino, mashandiro e semiconductor optical amplifiers akavandudzwa zvikuru, kunyanya mukuvandudzwa kwetekinoroji itsva dze optical dzakadai se wavelength division multiplexing kana optical switching modes. Nekuvandudzwa kweindasitiri yeruzivo, tekinoroji ye optical amplification yakakodzera mabhendi akasiyana uye mashandisirwo akasiyana ichaunzwa, uye kuvandudzwa nekutsvagurudzwa kwetekinoroji itsva kuchaita kuti tekinoroji ye semiconductor optical amplifier irambe ichikura uye ichibudirira.