Igishushanyo cya Photonic Crocected

Igishushanyo cyaphotonicUmuzunguruko

Photonic ihuriweho n'umuzunguruko.Picni Byakozwe mugushushanya ibice byinshi (mubisanzwe 10 kugeza 30) kuri wafer, bigizwe nuburyo bwinshi bwa polygonial, akenshi bugereranywa muburyo bwa GDSII. Mbere yo kohereza dosiye kubakoresha Photomask, birakenewe cyane kwigana pic kugirango bagenzure neza igishushanyo mbonera. Kwigana bigabanijwemo inzego nyinshi: Urwego rwo hasi ni amagorofa atatu ya electromagnetic (em), aho kwigana bikorwa kurwego rwuburebure, nubwo imikoranire hagati ya atome mubikoresho ikorwa kurwego rwa macroscopique. Uburyo busanzwe burimo bitatu-bigabanijwe-gutandukanya igihe-domaine (3d FDTD) na Emenmode Kwagura (Eme). Ubu buryo nukuri, ariko ntibishoboka kubihe byose byibishushanyo. Urwego rukurikira ni 2,5-urwego rwa em kwigana, nkibi-bidahwitse-itandukaniro rya beam poppanation (FD-BPM). Ubu buryo bwihuse cyane, ariko kwigomwa ukuri kandi birashobora gukemura gusa ubumuga bwa paraxial kandi ntibishobora gukoreshwa kugirango bigana resonator, kurugero. Urwego rukurikira ni 2D em kwigana, nka 2d FDTD na 2D BPM. Ibi kandi birihuta, ariko bafite imikorere mike, nkuko badashobora kwigana agaciro katanze. Urundi rwego ni ugukwirakwiza no / cyangwa gutatanya Matrix. Buri gice kinini cyagabanutse kubice hamwe nibitekerezo nibisohoka, hamwe na Waveguide yahujwe yagabanutse kugera ku cyiciro cyahindutse hamwe nibihe bidasanzwe. Izigereranya zirahuje cyane. Ikimenyetso cyibisohoka kiboneka ugwiza matrix yohereza ibicuruzwa kubimenyetso byinjiza. Matrix itatanye (ibintu bitwa s-parameter) igwiza ibimenyetso nibisohoka kuruhande rumwe kugirango ubone ibitekerezo nibisohoka kurundi ruhande rwibice. Ahanini, matrix itatanye ikubiyemo ibitekerezo imbere mu mateka. Matrix itatanye mubisanzwe ni nini nka marikens yohereza muri buri kipimo. Muri make, guhera kuri 3D em kugirango ukwirakwize / gutanyagura matrix, buri gice cyo kwigana kigaragaza umuvuduko nukuri, kandi abashushanya bahitamo urwego rwiburyo rwo gutegura inzira yo kwemeza.

Ariko, kwishingikiriza kuri electromagnetic kwigana ibintu bimwe na bimwe no gukoresha tatatring / kwimura matrix kugirango bigana pic byose ntabwo byemeza igishushanyo mbonera rwose imbere yisahani. Kurugero, inzira ikennye, Multimode Wavegudes Kunanirwa guhagarika uburyo bwo hasi, cyangwa umurongo wa vecuide ebyiri cyane zegeranya zituma ibibazo binyuranyije nibibazo bitunguranye mugihe cyo kwigana bitamenyekanye mugihe cyo kwigana. Kubwibyo, nubwo ibikoresho byo kwigana bitanga ubushobozi bwo kwemeza bukomeye, biracyasaba ubushobozi bworoshye kandi busaba ubunararibonye, ​​buhuza nubushakashatsi bufatika nubumenyi bwa tekiniki, kugirango hamenyekane neza neza kandi bikezererwe no kugabanya ibyago byurupapuro.

Tekinike yitwa Sparse FDTD yemerera 3d na 2D FDTD kugirango ikore neza kuri pic yuzuye kugirango yemeze igishushanyo mbonera. Nubwo bigoye kubikoresho byose bya electromaGNETIC igikoresho icyo aricyo cyose cyo kwigana igipimo kinini cyane, Sparte FDTD ishoboye kwigana ahantu hanini cyane. Muri gakondo 3D FDTD, kwigana bitangirana no gutangiza ibice bitandatu byumurima wa electomagnetic murwego rwihariye. Mugihe igihe gitera imbere, ibice bishya byumurima bibarwa, nibindi. Buri ntambwe isaba kubara cyane, birafata igihe kirekire. Muri sparse 3d fdtd, aho kubara kuri buri ntambwe kuri buri kigo cyijwi, urutonde rwibigizemo uruhare rushobora kuba ihuye nubunini bubi kandi bubazwe gusa kubigize ibyo bigize. Kuri buri gihe intambwe, ingingo zegeranya kubigize umurima byongeweho, mugihe ibice bigize umurima munsi yimbaraga zimwe na zimwe zagabanutse. Kubwuburyo bumwe, uku kubara birashobora kuba ibicuruzwa byinshi byubunini bihutira kuba 3d FDTD. Nyamara, FDTDs FDDD ntabwo ikora neza mugihe uhuye ninzego zidashira kuko iki gihe cyumurima ukwirakwira cyane, bikavamo urutonde rwinshi kandi kigoye kubikemura. Igishushanyo 1 cyerekana urugero rwiza rwa 3D FDTD zisa nisoni za polaritter (pbs).

Igishushanyo 1: Ibisubizo byo kwigana biva kuri 3D SPORD FDTD. . (B) Yerekana amashusho yo kwigana ukoresheje Quasi-te. Igishushanyo cy'ibiti byombi byerekana ibimenyetso bya quasi-te na Quasi-TM, hamwe n'ibishushanyo bibiri bikurikira byerekana ibitekerezo byambukiranya igice. (C) yerekana amashusho yo kwigana ukoresheje indamarano.