Zviri Mukati[Viga][Ratidza]
Chinhu chinobatika chinotungamira masaisai emagetsi muoptical spectrum inonzi optical waveguide.
Transparent dielectric waveguides inoumbwa nepurasitiki negirazi, pamwe nefiber optical, ndiwo maitiro eiyo optical waveguides.
Nzvimbo yenzvimbo iyo chiedza chinogona kupararira inomanikidzwa neoptical waveguide, inova nzvimbo isina homogeneous mudziyo wekutungamira chiedza.
Kazhinji, waveguide ine chikamu icho refractive index yakakwirira kupfuura yakatenderedza svikiro (inonzi cladding).
Muchikamu chino, isu tichaongorora iyo optical waveguide nheyo, mimwe mienzaniso, uye zvimwe zvakawanda.
Nhanganyaya kune optical waveguide
Iwo akakosha ekuvaka zvidhinha zvemafotonic zvishandiso ari optical waveguides, anotungamira, vaviri, chinja, patsanura, multiplex, uye demultiplex optical masaini.
Kushandisa planar tekinoroji, yakafanana nemicroelectronics, passive waveguides, electrooptic components, transmitters, receiver, uye kutyaira zvemagetsi zvese zvinogona kusanganiswa pane imwechete chip.
Kuitwa kwemidziyo yewaveguide kunoenderana nezvakasiyana zvinhu, zvinosanganisira geometry, wavelength, yekutanga kugovera munda, ruzivo rwezvinhu, uye electrooptic kutyaira mamiriro, kunyangwe hazvo kushanda kwavo kwakadzidzwa zvakanyanya uye kunzwisiswa.
Usati wagadzira gadget, mamwe ma parameter anoda kugadziridzwa. Nekuti zvakawanda zviwanikwa zvinodiwa kugadzira chip, chaiyo modelling yakakosha kune hombe-hombe optoelectronic maseketi.
Waveguide modes, mode coupling, kurasikirwa, uye kuwana, pamwe nekufambiswa kwemasaini masaini, ese anoteedzerwa mune optical waveguide dhizaini.
Iyo waveguide mudziyo inotsanangurwa mune chimwe chikamu cheiyo data yekupinda neiyo geometry, kugadzira zvinhu, uye zvinhu zvinogara.
Iyo waveguide data inofanirwa kuve yekuisa uchishandisa dhizaini dhizaini ine software inogona zvakare kubata ekugadzira maparamita.
Nekumisikidza manhamba computations, kupinda data kunosanganisirawo chimwe chikamu. Munyika yakakwana, masisitimu ekuisa anogona kuvanza kana kuganhurira izvo chaizvo zvenhamba.
Asi sezvo waveguide modeling ichiwanzoshandisa nzira dzakaoma dzenhamba, unofanirwa kujairana nezvimwe zvinhu zvenhamba dziri pasi.
Photonic circuits inogadzirwa uchishandisa waveguides. Perpendicular kune nzira iri padivi pe waveguide centre ndiyo tsananguro yehupamhi hwewaveguide, ingave yakagadziriswa kana kuchinja.
Basic Principal yeOptical waveguide
Sezvinoratidzwa pamufananidzo, geometrical kana ray optics pfungwa dzinogona kushandiswa kuburitsa iwo akakosha mazano ari pasi peiyo optical waveguides.
Refraction (refraction) inzira iyo chiedza chinopinda muchinhu chine refractive index yakakwira chakananga kune yakajairika.
Funga nezvechiitiko chechiedza chinopinda girazi kubva mumhepo. Zvakafanana nemafambiro anoita chiedza neimwe nzira, kubva pagirazi kuenda kumhepo, tevera nzira imwechete uye wotsauka kubva pane zvakajairika. Nekuda kwenguva-kudzoreredza symmetry, izvi zvinoguma. Zvinogoneka kumepu mwaranzi wega wega mumhepo kune mwaranzi mugirazi.
Hukama hwemumwe-mumwe huripo. Asi mamwe emaranzi emwenje mugirazi anopotsa nekuda kwekupokana. Yese yemukati fungidziro, iyo inoteya chiedza chakasara mugirazi, ndiyo nzira iri kushanda.
Pakona pamusoro pekona yakakosha, inoitika pane girazi-mhepo yekubata. Mune mamwe maumbirwo akaomesesa akavakirwa paGreen's function, aya ekuwedzera maranzi anowirirana kune yakakura density yematunhu.
Mune dielectric waveguide, tinogona kutora uye kutungamira mwenje nekushandisa yakazara yemukati kuratidza. Mwaranzi dzvuku mwenje unotaridza kubva kumusoro uye pasi penzvimbo yepamusoro.
Chero bedzi iyo slab inokotama zvishoma nezvishoma, inogona kutungamirirwa kunyange kana yakakombama kana kukotama. Chiedza chinotungamirwa pamwe nepamusoro index girazi musimboti mune yakaderera index girazi cladding zvinoenderana neiyi musimboti wakakosha mufiber optics.
Waveguide Operation inongoratidzwa chete neray optics. Kuti uwane tsananguro yakazara-yemunda ye dielectric waveguide, equations yaMaxwell inogona kugadziriswa nekuongorora kana nenhamba.
Muenzaniso weOptical waveguide
Dielectric slab waveguides, inozivikanwawo se planar waveguides, ingangove ndiyo inonyanya kukosha mhando yeoptical waveguides.
Yakarongedzerwa waveguide gratings, acousto-optic mafirita, uye modulators angori mashoma e-chip zvishandiso anogona kushandisa slab waveguides nekuda kwekureruka kwawo.
Slab waveguides zvakare anowanzo shandiswa sematoyi modhi.
Matanho matatu emidziyo, imwe neimwe iine dielectric yakasarudzika, inosanganiswa kuti iite slab waveguide, iyo inogona kuenderera nekusingaperi munzira inofananidzwa nepakati pakati pavo.
Kana chikamu chepakati chine refractive index yakakwira pane yekunze, mwenje unowanikwa muchikamu chepakati kuburikidza nekutarisa kwemukati kwese.
Mimwe mienzaniso ye2-Dimensional waveguide
Strip waveguide
Chaizvoizvo, tambo yedhiri inosvinwa pakati pematanho ekuvharira ndiyo inogadzira strip waveguide.
Iyo slab waveguide's guide layer inomanikidzirwa mumativi ese akachinjika kwete imwe chete, zvichikonzera muenzaniso wakapfava werectangular waveguide. Ose ari maviri akabatanidzwa optical maseketi uye laser diode anoshandisa rectangular waveguides.
Ivo vanowanzo shanda senheyo yezvikamu zvemaziso zvakaita seMach-Zehnder interferometers uye wavelength division multiplexers. Nguva zhinji, rectangular optical waveguides anoshandiswa kuvaka mapako emalaser diode.
A planar tekiniki inowanzo shandiswa kugadzira optical waveguides ane rectangular shape.
Rib waveguide
Mune rib waveguide, iyo inotungamira dhizaini ine tambo (kana akawanda mitsetse) yakafukidzwa pamusoro payo.
Mune akawanda-layer mbabvu zvimiro, pedyo-kubatana kuvharirwa kunogoneka pamwe nekuvharirwa kwemasaisai mumativi maviri mumbabvu waveguides.
Photonic crystal waveguide uye yakakamurwa waveguide
Padivi penzira yavo yekuparadzira, optical waveguides anowanzo kuchengetedza chikamu chemuchinjiko. Aya ndiwo mamiriro, semuenzaniso, ane mitsetse uye rib waveguides.
Nekushandisa anonzi maBloch modes, ma waveguides anogona zvakare kuve ne periodic misiyano muchinjika-chikamu chavo asi achiendesa mwenje pasina kurasikirwa.
Aya mawaisaidhi anoiswa senge photonic crystal waveguides (ine 2D kana 3D patterning) kana zvikamu zvakakamurwa mafungu (aine 1D patterning pamwe negwara rekuparadzira).
Laser-yakanyorwa waveguide
Indasitiri yephotonics ndipo panonyanya kubatsira optical waveguides. Kubatanidzwa pakati pemagetsi machipisi uye optical fibers inogoneka nekumisikidza waveguides munzvimbo ye3D.
Imwe modhi yechiedza che infrared panharembozha wavelengths inogona kuparadzirwa uchishandisa mawaveguides akadaro, ayo akamiswa zvakare kutakura masaini ekuona pakati penzvimbo dzekupinza uye dzekubuda nekurasikirwa kwakanyanya.
Optical waveguide inoshandisa
Mune microwave kutaurirana, kutepfenyura, uye radar masisitimu, waveguide ndeye electromagnetic feed mutsara. Waveguide inogadzirwa nepombi yesimbi kana chubhu ine rectangular kana cylindrical.
Iyo electromagnetic munda inopararira kureba. Nyanga uye dish antennas ndiwo anonyanya kufanana waveguide application.
Optical fiber-ndiyo waveguide?
Yese yemukati fungidziro, iyo inotonga kuti optical fiber inoshanda sei, inogona kufungidzirwa sechiedza waveguide.
Kana kona yechiitiko yakakura kupfuura kona yakakosha, kutarisisa kwemukati kunoitika kana masaisai anopararira asangana nemuganho pakati pezvinhu zviviri zvakasiyana.
mhedziso
Mukupedzisa, an optical waveguide chimiro "chinotungamira" mwenje wave nekuchidzivirira kubva kune imwe nzira pane iyo inodiwa. Muindasitiri yezvokurapa, optical fibers anowanzo shandiswa kune ese ari maviri kuongororwa uye kurapwa.
Tambo dzinochinjika dzakagadzirwa neoptical fibers dzinogona kuiswa mumapapu, tsinga dzeropa, uye dzimwe nhengo. Imwe chubhu refu inochengeta masvinga maviri emafiber optic mukati meendoscope, mudziyo wekurapa.
Mufananidzo wakadzama unogadzirwa nekunangidzira mwenje kumatishu arikuedzwa mune rimwe bundle uchigamuchira mwenje unoratidzwa kubva kwairi mune rimwe bundle. Endoscopes inogona kuitwa kuti iongorore dzimwe nhengo dzemuviri kana majoini, semabvi.
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