Kubudirira uye musika mamiriro e tunable laser Chikamu chechipiri

Kubudirira uye musika mamiriro e tunable laser (Chikamu chechipiri)

Kushanda musimboti wetunable laser

Pane angangoita matatu misimboti yekuwana laser wavelength tuning. Zvizhinjitunable lasersshandisa zvinhu zvinoshanda zvine mitsetse yefluorescent yakakura. Iwo maresonators anogadzira iyo laser ane yakaderera kurasikirwa chete pamusoro peyakatetepa wavelength renji. Naizvozvo, yekutanga ndeye kushandura wavelength yelaser nekushandura wavelength inoenderana nenzvimbo yakaderera yekurasikirwa kweresonator nezvimwe zvinhu (senge grating). Chechipiri ndechekushandura simba rekuchinja kwelaser nekushandura mamwe maparamita ekunze (senge magineti, tembiricha, nezvimwewo). Chechitatu ndiko kushandiswa kwemaitiro asina mutsara kuti uwane shanduko yewavelength nekugadzirisa (ona nonlinear optics, yakakurudzira Raman kupararira, optical frequency kaviri, optical parametric oscillation). Yakajairika lasers yeyekutanga tuning modhi idhayi lasers, chrysoberyl lasers, color centre lasers, tunable akakwira-kumanikidza gasi lasers uye tunable excimer lasers.

Tunable laser kubva pakuona kwekuita tekinoroji inonyanya kukamurwa kuita: ikozvino kutonga tekinoroji, tekinoroji yekudzora tekinoroji uye mechanic control tekinoroji.
Pakati pavo, tekinoroji yekudzora tekinoroji ndeyekuwana wavelength tuning nekushandura jekiseni razvino, neNS-level tuning kumhanya, yakakura tuning bandwidth, asi diki simba rekubuda, zvichibva pamagetsi ekudzora tekinoroji kunyanya SG-DBR (sampling grating DBR) uye GCSR laser (yebetsero grating inotungamira kubatanidza kumashure-sampling kuratidzira) . Iyo tembiricha yekudzora tekinoroji inoshandura iyo yakabuda wavelength yelaser nekushandura refractive index ye laser inoshanda dunhu. Iyo tekinoroji iri nyore, asi inononoka, uye inogona kugadziriswa neyakamanikana bhendi hupamhi hwema nm mashoma. Iwo makuru anobva pane tembiricha yekudzora tekinoroji ndeyeDFB laser(yakagoverwa mhinduro) uye DBR laser (Distributed Bragg reflection). Mechanical control inonyanya kuenderana neMEMS (micro-electro-mechanical system) tekinoroji yekupedzisa kusarudzwa kwewavelength, ine hombe inogadziriswa bandwidth, yakakura kubuda simba. Zvimiro zvikuru zvakavakirwa pamichina yekudzora tekinoroji ndeyeDFB (yakagoverwa mhinduro), ECL (kunze cavity laser) uye VCSEL (vertical cavity surface emitting laser). Izvi zvinotevera zvinotsanangurwa kubva kune aya maficha emusimboti we tunable lasers.

Optical communication application

Tunable laser chinhu chakakosha optoelectronic mudziyo muchizvarwa chitsva che dense wavelength division multiplexing system uye photon exchange mune ese-optical network. Chishandiso chayo chinowedzera zvakanyanya kugona, kuchinjika uye scalability ye optical fiber transmission system, uye yaona inoenderera kana quasi-inoenderera tuning mune yakakura wavelength renji.
Makambani nemasangano ekutsvagisa pasirese arikushingairira kusimudzira kutsvagisa nekuvandudzwa kwema lasers, uye kufambira mberi kutsva kuri kugara kuchiitwa mundima iyi. Kuita kwe tunable lasers kunogara kuchivandudzwa uye mutengo unogara wakaderedzwa. Parizvino, tunable lasers anonyanya kukamurwa kuita mapoka maviri: semiconductor tunable lasers uye tunable fiber lasers.
Semiconductor laserchinhu chakakosha chechiedza mu optical communication system, iyo ine maitiro ehukuru hudiki, huremu huremu, hukuru hwekushandura, kuchengetedza simba, nezvimwewo, uye zviri nyore kuwana imwe chip optoelectronic kubatanidzwa nemimwe michina. Inogona kukamurwa kuita inogoneka yakagovaniswa mhinduro laser, yakagoverwa Bragg girazi laser, micromotor system yakatwasuka mhango pamusoro emitting laser uye yekunze cavity semiconductor laser.
Kuvandudzwa kweiyo tunable fiber laser senge yekuwana svikiro uye kuvandudzwa kwesemiconductor laser diode sepombi sosi kwakakurudzira zvikuru kuvandudzwa kwefiber lasers. Iyo tunable laser yakavakirwa pa80nm kuwana bandwidth yeiyo doped fiber, uye iyo sefa chinhu chinowedzerwa kune loop kudzora lasing wavelength uye kuona iyo wavelength tuning.
Iko kuvandudza kwe tunable semiconductor laser inoshanda zvakanyanya munyika, uye kufambira mberi kuri kukurumidza kwazvo. Sezvo tunable lasers zvishoma nezvishoma inosvika yakagadziriswa wavelength lasers maererano nemutengo uye kuita, ivo vanozongo shandiswa zvakanyanya uye zvakanyanya mumasisitimu ekutaurirana uye kuita basa rakakosha mune ramangwana ese-optical network.

Tarisiro yebudiriro
Kune akawanda marudzi eanogoneka lasers, ayo anowanzo kuvandudzwa nekuenderera mberi nekuunza wavelength tuning masisitimu pahwaro hweakasiyana-siyana-wavelength lasers, uye zvimwe zvinhu zvakapihwa kumusika wepasirese. Pamusoro pekuvandudzwa kweanoenderera mberi optical tunable lasers, tunable lasers ane akabatanidzwa mamwe mabasa akataurwa zvakare, senge tunable laser yakabatanidzwa nekamwe chip yeVCSEL uye yemagetsi absorption modulator, uye iyo laser yakabatanidzwa nesample grating Bragg reflector. uye semiconductor optical amplifier uye yemagetsi absorption modulator.
Nekuti iyo wavelength tunable laser inoshandiswa zvakanyanya, iyo tunable laser yeakasiyana zvimiro inogona kuiswa kune akasiyana masisitimu, uye imwe neimwe ine zvakanakira nezvayakaipira. Yekunze mhango semiconductor laser inogona kushandiswa seyakafarabhendi inobatika mwenje sosi mune chaiyo bvunzo zviridzwa nekuda kweiyo yakakwira yekubuda simba uye inoenderera tunable wavelength. Kubva pamaonero ekubatanidza photon uye kusangana neramangwana rese-optical network, sampuli grating DBR, superstructured grating DBR uye tunable lasers akabatanidzwa nemamodulators uye amplifiers anogona kunge ari kuvimbisa tunable mwenje masosi eZ.
Fiber grating tunable laser ine yekunze mhango iri zvakare inovimbisa mhando yemwenje sosi, ine yakapusa chimiro, nhete mutsara upamhi uye nyore fiber coupling. Kana iyo EA modulator inogona kubatanidzwa mugomba, inogona zvakare kushandiswa seyakakwira yekumhanyisa tunable optical soliton sosi. Uye zvakare, tunable fiber lasers yakavakirwa pafiber lasers yakafambira mberi zvakanyanya mumakore achangopfuura. Zvinogona kutarisirwa kuti kuita kwe tunable lasers mu optical communication light sources kuchawedzera kuvandudzwa, uye chikamu chemusika chichawedzera zvishoma nezvishoma, netarisiro yakajeka yekushandisa.