ʻIke ke ʻano hou o ka photodetector i nā hōʻailona māmā o ke kukui ma ka hui 2μm

ʻO ke ʻano hou omea ʻike kiʻiʻike i nā hōʻailona mālamalama nāwaliwali ma ka hui 2μm

Ma nā ʻoihana ʻoi loa o ka noiʻi ʻepekema a me nā noi ʻoihana, ʻo ka hopu pololei a me ka nānā ʻana i nā hōʻailona kukui nāwaliwali ke kī mau i ka hoʻokele ʻana i ka hana hou ʻenehana. ʻOi loa i ka hui mid-infrared 2-micron (μm), ʻo ka omo ʻana o ka manamana lima o nā molekala kinoea, nā ʻano pulse o nā lasers hou, a me ka ʻike hohonu o nā ʻiʻo olaola aia i loko o kēia hōʻailona optical nāwaliwali akā waiwai i ka ʻike. Eia nō naʻe, ʻo ka paʻakikī i ka hopu ʻana i ka hōʻailona optical nāwaliwali, ka kāohi ʻana i ke komo ʻana o ke kaiapuni, a me ka paʻakikī kiʻekiʻe o ka hoʻohui ʻana o ka ʻōnaehana ua hūnā mau ʻia nā pale i ka noiʻi ʻepekema a me nā noi ʻenekinia.

I kēia lā, lawe mai mākou iā ʻoe i kahi huahana e hoʻokō ana i nā koi o kēia noi, ʻo ia ka R-PR-1G type 2μm analog light detection photodetector, i hoʻolaʻa ʻia no ka lilo ʻana i "dawner" ma ke kahua o ka ʻike ʻana i nā hōʻailona kukui mid-infrared.

ʻO ka R-PR-2μmmodula ʻike kiʻihoʻohui akamai i kahi wikiwiki i hoʻonui ʻiaMea ʻike kiʻi InGaAsme kahi mea hoʻonui walaʻau haʻahaʻa, e like me kahi "super sensory" i hana kūikawā ʻia no ke ana ʻana o ka optical pololei. Hōʻike ʻia kāna hana koʻikoʻi ma ka laulā pane spectral ākea o 900-2300nm, hiki ke uhi i nā hui mid-infrared koʻikoʻi he nui. Inā paha ʻo ia ka omo ʻana o nā mole wai i ka lewa a i ʻole nā ​​​​wavelengths kū hoʻokahi i hoʻopuka ʻia e nā lasers fiber TM-doped a me Ho, hiki ke hopu pololei ʻia lākou āpau.

ʻAʻole wale ia, ua kaulana ka module photodetector R-PR-2μm no kona loaʻa kiʻekiʻe, ka ʻike kiʻekiʻe a me ka palahalaha loaʻa maikaʻi loa. Hiki ke ʻike maopopo ʻia nā pulse laser mid-infrared picosecond-level nāwaliwali loa e ia, e hōʻoiaʻiʻo ana i ka hoʻoili ʻana o ka hōʻailona lossless. I kēia manawa, ʻo kona hiʻohiʻona haʻahaʻa-walaʻau e kāohi pono i ka hoʻopilikia hope, e hāʻawi ana i nā mea noiʻi me ka ʻikepili maka maʻemaʻe a hilinaʻi hoʻi. He ʻano paʻa ko ka module, hiki ke pale i ka hoʻopilikia electromagnetic, a kākoʻo i ka hoʻokomo ʻana o ka fiber mode hoʻokahi a i ʻole ka hoʻopili ʻana o ka hakahaka manuahi, a me ka hoʻopuka hoʻohui SMA, kahi e hoʻomaʻalahi nui ai i ka hoʻohui a me ka hoʻolaha ʻana. ʻO ka mea nui e haʻi ʻia, ʻo ia ke kākoʻo pū nei i ka hoʻopilikino ʻana ma muli o nā pono kikoʻī o nā mea kūʻai aku. No ka laʻana, ʻo ka ʻili photosensitive paipu PIN i kūkulu ʻia he koho ia, e hōʻike ana i kona kiʻekiʻe o ka maʻalahi a me ka hiki ke hoʻololi. ʻOiai ua palupalu ke kukui, hiki nō ke hahai ʻia. ʻO ka module photodetector R-PR-2μm e hana i ka mālamalama ʻike ʻole ʻia i ka hana i ʻike ʻia, hiki ke ana ʻia a hiki ke hoʻohana ʻia.