Masu bincike a Harvard School of Engineering and Applied Sciences. John A. Paulson (Harvard John A. Paulson School of Engineering and Applied Sciences - SEAS) sune na farko a duniya don amfani da laser semiconductor don ƙirƙirar tashar sadarwa. Na'urar daukar hoto mai amfani da wutar lantarki na amfani da Laser don samarwa da watsa siginar microwave kuma wata rana zai iya haifar da sabon nau'in sadarwa mara waya mai tsayi.
Sauraron Dean Martin ya yi sanannen abin da ya rubuta "Volare" daga mai magana da kwamfuta na iya zama kamar wani abu na yau da kullun, amma lokacin da kuka san cewa wannan shine farkon watsa shirye-shiryen rediyo ta amfani da fasahar Laser, ƙwarewa ce ta daban. Sabuwar na'urar, wanda wata ƙungiya daga SEAS ta ƙera, tana aiki ne ta amfani da Laser infrared, wanda aka raba zuwa katako na mitoci daban-daban. Idan Laser na al'ada ya haifar da katako a mitoci guda ɗaya, kamar violin yana wasa daidai bayanin kula, to, na'urar da masana kimiyya suka kirkira tana fitar da katako da yawa tare da mitoci daban-daban, waɗanda a ko'ina suke rarraba a cikin rafi, kamar haƙoran tsefe gashi, wanda ya bayar. asalin sunan na'urar - infrared Laser-frequency comb (infrared Laser combing comb).
A cikin 2018, ƙungiyar SEAS ta gano cewa "hakoran" na Laser tsefe na iya daidaitawa da juna, yana haifar da electrons a cikin rami na laser don yin oscillate a mitoci na microwave a cikin kewayon rediyo. Babban wutar lantarki na na'urar yana da ƙugiya mai ƙyalƙyali wanda ke aiki azaman eriyar dipole kuma yana aiki azaman mai watsawa. Ta hanyar canza sigogi na laser (daidaita shi), ƙungiyar ta sami damar ɓoye bayanan dijital a cikin hasken lantarki. Daga nan aka watsa siginar zuwa wurin da ake karɓa, inda aka ɗauke ta da eriyar ƙaho, ta tace ta kuma cire lambar ta hanyar kwamfuta.
Marco Piccardo, masanin kimiyyar bincike a SEAS ya ce "Wannan na'urar da aka haɗa duk-in-daya tana da kyakkyawan alƙawari don sadarwa mara waya. "Ko da yake mafarkin sadarwa mara waya ta terahertz yana da nisa, wannan binciken ya ba mu taswirar hanya mai bayyana inda muke buƙatar zuwa."
A ka'idar, ana iya amfani da irin wannan na'urar watsawa ta Laser don watsa sigina a mitoci na 10-100 GHz da kuma har zuwa 1 THz, wanda a nan gaba zai ba da damar watsa bayanai cikin sauri zuwa 100 Gbit/s.
Bincike a cikin mujallar kimiyya ta PNAS.
source: 3dnews.ru