Kuvandudzwa uye mamiriro emusika we laser inogadziriswa Chikamu chechipiri

Kuvandudzwa uye mamiriro emusika we laser inogadziriswa (Chikamu chechipiri)

Musimboti wekushanda welaser inogadziriswa

Pane zvinhu zvitatu zvinofanirwa kuitwa kuti munhu akwanise kugadzirisa wavelength nelaser.malaser anogadziriswashandisa zvinhu zvinoshanda zvine mitsetse yakafara yefluorescent. Ma resonator anoumba laser ane kurasikirwa kushoma chete pamusoro pehurefu hwakatetepa hwewavelength. Nokudaro, chekutanga ndechekuchinja wavelength ye laser nekushandura wavelength inoenderana nenzvimbo yakaderera yekurasikirwa kwe resonator nezvimwe zvinhu (senge grating). Chechipiri ndechekuchinja simba rekuchinja kwe laser nekushandura mamwe ma parameter ekunze (senge magnetic field, tembiricha, nezvimwewo). Chechitatu kushandisa nonlinear effects kuti uwane shanduko ye wavelength uye tuning (ona nonlinear optics, stimulated Raman scattering, optical frequency doubling, optical parametric oscillation). Marasiro akajairika ari mu first tuning mode ndiwo dye lasers, chrysoberyl lasers, color center lasers, tunable high-pressure gas lasers uye tunable excimer lasers.

Kubva pamaonero e tekinoroji yekuongorora, laser inogadziriswa inokamurwa zvikuru muzvikamu zvinotevera: tekinoroji yekudzora iripo, tekinoroji yekudzora tembiricha uye tekinoroji yekudzora michina.
Pakati pazvo, tekinoroji yekudzora magetsi ndeyekugadzirisa wavelength nekuchinja injection current, nekumhanya kweNS-level tuning, wide tuning bandwidth, asi simba diki rekuburitsa, zvichibva pa electronic control technology kunyanya SG-DBR (sampling grating DBR) uye GCSR laser (assiliary grating directional coupling backward-sampling reflection). Tekinoroji yekudzora tembiricha inoshandura wavelength yekubuda kwe laser nekushandura refractive index ye laser active region. Tekinoroji iyi iri nyore, asi inononoka, uye inogona kugadziriswa nehupamhi hwebhendi hwakamanikana hwe nm shoma chete. Idzi huru dzakavakirwa pa temperature control technology ndeidziLaser yeDFB(mhinduro yakagoverwa) uye DBR laser (Distributed Bragg reflection). Kudzora kwemuchina kunonyanya kuenderana netekinoroji yeMEMS (micro-electro-mechanical system) kuti ipedze kusarudzwa kwewavelength, ine bandwidth hombe inogadziriswa, simba guru rekuburitsa. Maumbirwo makuru akavakirwa patekinoroji yekudzora kwemuchina ndiwo DFB (mhinduro yakagoverwa), ECL (external cavity laser) uye VCSEL (vertical cavity surface emitting laser). Zvinotevera zvinotsanangurwa kubva muzvikamu izvi zvenheyo yemalaser anogadziriswa.

Chikumbiro chekutaurirana kwemaziso

Laser inogadziriswa inyanzvi ye optoelectronic muchizvarwa chitsva che dense wavelength division multiplexing system uye photon exchange mu all-optical network. Kushandiswa kwayo kunowedzera zvikuru kugona, kuchinjika uye kukura kwe optical fiber transmission system, uye yakawana kugadziriswa kunoenderera mberi kana kwakafanana nekuenderera mberi munzvimbo yakakura ye wavelength.
Makambani nemasangano ekutsvagisa pasi rese ari kushingaira kukurudzira kutsvagisa nekugadzira ma laser anogadziriswa, uye kufambira mberi kutsva kuri kuitwa nguva dzose muchikamu ichi. Kushanda kwema laser anogadziriswa kunogara kuchivandudzwa uye mutengo unogara uchideredzwa. Parizvino, ma laser anogadziriswa akakamurwa zvikuru muzvikamu zviviri: ma laser anogadziriswa e semiconductor uye ma fiber laser anogadziriswa.
Laser ye semiconductoritsime rechiedza rakakosha muhurongwa hwekutaurirana kwemaziso, rine hunhu hwehukuru hudiki, huremu hwakareruka, kushanda zvakanaka kwekushandura, kuchengetedza simba, nezvimwewo, uye zviri nyore kuwana kubatanidzwa kwe single chip optoelectronic nezvimwe zvishandiso. Inogona kukamurwa kuita tunable distribution feedback laser, distribution Bragg mirror laser, micromotor system vertical cavity surface emitting laser uye external cavity semiconductor laser.
Kugadzirwa kwelaser inogadziriswa senzira yekuwana simba uye kugadzirwa kwe semiconductor laser diode senzvimbo yekupomba kwakakurudzira zvikuru kugadzirwa kwelaser dzemagetsi. Laser inogadziriswa yakavakirwa pa80nm gain bandwidth yefaibha yakasanganiswa, uye chinhu chinosefa chinowedzerwa kuropu kuti chidzore wavelength inotsvedza uye chiite kuti wavelength igadziriswe.
Kugadzirwa kwelaser inogadziriswa semiconductor kuri kushanda zvikuru pasi rose, uye kufambira mberi kuri kukurumidzawo. Sezvo malaser anogadziriswa zvishoma nezvishoma anosvika pa fixed wavelength lasers maererano nemutengo uye mashandiro, haazombofi akashandiswa zvakanyanya muhurongwa hwekutaurirana uye anoita basa rakakosha mune ramangwana rema network ese-optical.

Tarisiro yebudiriro
Kune mhando dzakawanda dzema laser anogadziriswa, ayo anowanzo gadzirwa nekuwedzera nzira dzekugadzirisa wavelength zvichibva pama laser akasiyana-siyana e-single-wavelength, uye zvimwe zvinhu zvakapihwa kumusika pasi rese. Pamusoro pekugadzirwa kwema laser anogadziriswa anogadziriswa anoenderera mberi, ma laser anogadziriswa ane mamwe mabasa akasanganiswa akataurwawo, akadai se laser inogadziriswa inosanganiswa ne single chip yeVCSEL uye electrical absorption modulator, uye laser inosanganiswa ne sample grating Bragg reflector uye semiconductor optical amplifier uye electrical absorption modulator.
Nekuti laser inogadziriswa nehurefu hwewavelength inoshandiswa zvakanyanya, laser inogadziriswa yezvivakwa zvakasiyana-siyana inogona kushandiswa kune masisitimu akasiyana, uye imwe neimwe ine zvayakanakira nezvayakaipira. Laser yekunze inogona kushandiswa senzvimbo yechiedza inogadziriswa nehurefu muzvishandiso zvekuyedza zvakanyatsonaka nekuda kwesimba rayo guru rekuburitsa uye wavelength inogadziriswa inoenderera mberi. Kubva pakuona kwekubatanidzwa kwephoton uye kusangana netiweki yeall-optical yeramangwana, sample grating DBR, superstructured grating DBR uye tunable lasers dzakabatanidzwa nemamodulators uye amplifiers zvinogona kunge zvichivimbisa tunable light sources dzeZ.
Laser inogadziriswa nefiber grating ine cavity yekunze zvakare imhando yechiedza chinovimbisa, ine chimiro chiri nyore, mutsetse wakamanikana uye fiber coupling iri nyore. Kana EA modulator ikagona kubatanidzwa mu cavity, inogona zvakare kushandiswa se sosi ye optical soliton inogadziriswa nekukurumidza. Pamusoro pezvo, ma fiber laser anogadziriswa akavakirwa pa fiber lasers akaita kufambira mberi kukuru mumakore achangopfuura. Zvinotarisirwa kuti mashandiro ema laser anogadziriswa mu optical communication light sources achawedzerwa, uye musika uchawedzera zvishoma nezvishoma, netariro yekushandiswa yakajeka.