A photonic siv lead ua fiber ntau ua los ntawm 2D photonic siv lead ua nrog cov tub ntxhais huab cua tau tsim los ntawm P. Russell hauv 1992 thiab thawj PCF tau tshaj tawm ntawm Optical Fiber Conference (OFC) xyoo 1996 [2].
Leej twg nrhiav tau photonic crystals?
Prof Eli Yablonovitch ntawm University of California, Berkeley, tau npaj thiab tsim cov muaju hauv xyoo 1980s. Tam sim no lawv tau siv rau hauv cov ntaub ntawv ua thiab hauv yoj taw qhia rau kev phais laser; Lawv kuj tau pom nyob rau hauv noog plaub thiab daim tawv nqaij ntawm chameleons.
Vim li cas photonic siv lead ua fiber ntau tsis zoo li optical fiber?
Vim nws lub peev xwm los kaw lub teeb hauv hollow cores lossis nrog cov yam ntxwv kaw tsis tau hauv cov khoom siv kho qhov muag, PCF tam sim no nrhiav kev siv hauv kev sib txuas lus fiber ntau, fiber ntau lasers, cov khoom siv uas tsis yog-linear, kev xa xov hluav taws xob siab, cov pa roj rhiab heev, thiab lwm qhov chaw.
Thaum twg optical fibers tawm?
Optical fiber ntau tau ua tiav hauv 1970 los ntawm Corning Glass Works, nrog attenuation qis txaus rau kev sib txuas lus (kwv yees 20 dB / km) thiab tib lub sijhawm GaAs semiconductor lasers tau tsim kom muaj kev sib cog lus thiab yog li tsim nyog rau kev xa lub teeb los ntawm fiber ntau optic cables kom ntev mus.
Photonic siv lead ua fiber ntau ua li cas?
Cov nyhuv bandgap - qis qhov taw qhia fibers
Photonic bandgap fibers yog raws li lub cev mechanisms fundamentally txawv ntawm M-TIR guiding fibers. … Hauv PBG fiber ntau, cov tub ntxhais yog tsim los ntawm kev qhia txog qhov tsis xws luag hauv PBG qauv (xws li lub qhov cua ntxiv), yog li tsim kom muaj thaj chaw uas lub teeb tuaj yeem nthuav tawm.
