Mtundu watsopano wa chowunikira zithunzi umazindikira zizindikiro zofooka za kuwala mu gulu la 2μm

Mtundu watsopano wachowunikira zithunziimazindikira zizindikiro zofooka za kuwala mu gulu la 2μm

M'magawo ambiri apamwamba a kafukufuku wa sayansi ndi ntchito zamafakitale, kujambula ndi kusanthula molondola zizindikiro zofooka za kuwala kwakhala chinsinsi choyendetsa luso laukadaulo. Makamaka mu gulu la 2-micron (μm) la mid-infrared, kuyamwa kwa zala za mamolekyu a mpweya, mawonekedwe a pulse a ma laser atsopano, ndi chidziwitso chakuya cha minofu ya zamoyo zonse zili mkati mwa chizindikiro ichi chooneka ngati chofooka koma chodzaza ndi chidziwitso. Komabe, kuvutika kujambula chizindikiro chofooka cha kuwala, kuletsa kusokoneza chilengedwe, ndi zovuta zambiri zogwirizanitsa machitidwe nthawi zonse zakhala zopinga zobisika mu kafukufuku wasayansi ndi ntchito zaukadaulo.

Lero, tikukubweretserani chinthu chomwe chikukwaniritsa zofunikira za pulogalamuyi, chowunikira kuwala kwa R-PR-1G 2μm, chodzipereka kukhala "m'bandakucha" pantchito yozindikira chizindikiro cha kuwala kwapakati pa infrared.

R-PR-2μmgawo lowunikira zithunziimagwirizanitsa mwaluso kwambiri liwiro lowonjezerekaChowunikira zithunzi cha InGaAsndi amplifier ya phokoso lochepa, yofanana ndi "super sensory" yopangidwira muyeso wolondola wa kuwala. Kugwira ntchito kwake kwapadera kumaonekera mu kuchuluka kwa mayankho a spectral a 900-2300nm, omwe amatha kuphimba magulu angapo apakati a infrared. Kaya ndi kuyamwa kwa mamolekyulu amadzi mumlengalenga kapena ma wavelength apadera omwe amatulutsidwa ndi ma laser a TM-doped ndi Ho fiber, onse amatha kujambulidwa molondola.

Si zokhazo, gawo la R-PR-2μm photodetector limadziwika ndi kuchuluka kwake kwakukulu, kukhudzidwa kwambiri komanso kusalala kwabwino kwa gain. Ngakhale ma pulse a laser a picosecond-level mid-infrared ofooka kwambiri amatha kuzindikirika bwino ndi ilo, kuonetsetsa kuti chizindikiro chikufalikira popanda kutaya. Pakadali pano, mawonekedwe ake a phokoso lotsika amaletsa bwino kusokonezeka kwa kumbuyo, kupatsa ofufuza deta yoyera komanso yodalirika. Gawoli lili ndi kapangidwe kakang'ono, limatha kupewa kusokonezeka kwa ma electromagnetic, ndipo limathandizira kulowetsa kwa ulusi wa single-mode kapena free-space coupling, komanso kutulutsa kwa SMA connector, komwe kumathandiza kwambiri kuphatikiza ndi kutumiza. Chofunika kwambiri kutchula ndikuti limathandizanso kusintha kutengera zosowa za makasitomala. Mwachitsanzo, pamwamba pa PIN chubu chomangidwa mkati ndi chosankha, kuwonetsa kusinthasintha kwake kwakukulu komanso kusinthasintha. Ngakhale kuwala kuli kochepa, kumatha kutsatiridwa. Gawo la R-PR-2μm photodetector limapangitsa kuwala kosawoneka mu ntchito kuwoneka, kuyezeka komanso kugwiritsidwa ntchito.