Sabbin labaran bincike game da fasahar sadarwa ta sararin samaniya ta laser

Sabbin labaran bincike naLaser sadarwa ta sararin samaniya

Tsarin Intanet na tauraron dan adam, tare da ɗaukar hoto a duk duniya, ƙarancin jinkiri da kuma babban bandwidth, ya zama babban alkiblar ci gaban fasahar sadarwa ta gaba. Sadarwar laser ta sararin samaniya ita ce babbar fasahar da ke haɓaka tsarin sadarwa ta tauraron dan adam.Laser na Semiconductoryana nuna fa'idar amfani da na'urar laser a sararin samaniya saboda ingancinta mai yawa, tsawon rai, ƙaramin girma, nauyi mai sauƙi da kuma kyawawan halayen daidaitawa. Duk da haka, haskoki na sararin samaniya, haskoki na galactic cosmic da adadi mai yawa na barbashi masu ƙarfi kamar protons, electrons da ions masu nauyi a cikin bel ɗin kama geomagnetic a cikin yanayin sararin samaniya na iya haifar da lalacewar aikin na'ura har ma da haifar da gazawar na'ura, wanda ke barazana ga aminci da kwanciyar hankali na tsarin sadarwa na laser sararin samaniya.

FIG1. ​​Na'urar gwaji donlaserkimanta aiki

Kwanan nan, wata ƙungiyar bincike a China ta sami ci gaba mai mahimmanci a binciken aikin lasers na quantum dot a cikin ƙungiyar sadarwa don sararin samaniya. Ta hanyar ƙirƙirar band mai ƙirƙira da inganta tsarin yanki mai aiki, ƙungiyar ta yi nasarar ƙirƙirar sabbin sakamakon bincike na lasers na sadarwa ta sararin samaniya, waɗanda ke da kyakkyawan aiki a cikin yanayin barbashi mai ƙarfi, lasers na quantum dot. Sun gudanar da bincike mai zurfi na kwatanta aikin tsarin abubuwa daban-daban a cikin yanayin sararin samaniya. Sakamakon gwaji ya nuna cewa tsarin digo na quantum yana nuna fa'idodi masu ban mamaki na kwanciyar hankali a cikin yanayin barbashi mai ƙarfi na ƙasan kewayar Duniya.

Bisa ga wannan binciken, ƙungiyar binciken ta yi nasarar tsara da kuma ƙirƙiro sabon nau'inLaser mai nuna dot na kwantumNa'urar tana nuna kyakkyawan aiki a cikin mawuyacin yanayi: a allurar proton 3MeV har zuwa 7×1013 cm-2, laser ɗin yana riƙe da abin haɓaka faɗin layi kusa da sifili; Matsakaicin hayaniyar ƙarfin dangi (RIN) na na'urar yana ƙasa da -163 dB/Hz, koda a matsakaicin girman allura, RIN yana ƙaruwa da 1 dB/Hz kawai. Bugu da ƙari, laser ɗin har yanzu yana iya aiki da kyau a ƙarƙashin yanayin amsawar haske mai ƙarfi na -3.1dB. Wannan nasarar ba wai kawai tana tabbatar da sabbin sakamakon bincike na lasers na sadarwa ta sararin samaniya ba, har ma tana ba da ingantaccenmafita ta tushen haskedon gina hanyoyin sadarwa na tauraron dan adam masu inganci.