ʻO ka nūhou noiʻi hou loa o ka laser kamaʻilio ākea

Nā nūhou noiʻi hou loa olaser kamaʻilio ākea

ʻO ka ʻōnaehana pūnaewele ukali, me kona uhi honua, ka latency haʻahaʻa a me ka bandwidth kiʻekiʻe, ua lilo ia i kuhikuhi koʻikoʻi o ka hoʻomohala ʻenehana kamaʻilio e hiki mai ana. ʻO ke kamaʻilio laser lewa ka ʻenehana koʻikoʻi i ka hoʻomohala ʻana i ka ʻōnaehana kamaʻilio ukali.Laser semiconductorhōʻike i ka hiki ke hoʻohana ākea i ka ʻōnaehana kamaʻilio laser lewa ma muli o kona pono kiʻekiʻe, ke ola lōʻihi, ka liʻiliʻi o ka nui, ke kaumaha māmā a me nā ʻano modulation maikaʻi loa. Eia nō naʻe, ʻo nā kukuna cosmic solar, nā kukuna cosmic galactic a me ka nui o nā ʻāpana i hoʻopiʻi ʻia me ka ikehu kiʻekiʻe e like me nā protons, electrons a me nā ions kaumaha i loko o ke kāʻei hopu geomagnetic i ke kaiapuni lewa e alakaʻi paha i ka hōʻino ʻana o ka hana o ka hāmeʻa a hiki ke alakaʻi i ka hāʻule ʻana o ka hāmeʻa, kahi e hoʻoweliweli nui ai i ka hilinaʻi a me ke kūpaʻa o nā ʻōnaehana kamaʻilio laser lewa.

Kiʻi 1. Mea hana hoʻokolohua nolaserloiloi hana

I kēia mau lā aku nei, ua holomua nui kahi hui noiʻi ma Kina i ka noiʻi hana o nā lasers quantum dot ma ke kāʻei kamaʻilio no ka lewa. Ma o ka hoʻolālā kāʻei hou a me ka hoʻonui ʻana i ke ʻano o ka ʻāpana hana, ua hoʻomohala pono ka hui i nā hopena noiʻi hou loa o nā lasers kamaʻilio lewa, nona ka hana maikaʻi loa ma ke kaiapuni ʻāpana ikehu kiʻekiʻe, nā lasers quantum dot. Ua hana lākou i kahi loiloi hoʻohālikelike hohonu o ka hana o nā ʻōnaehana mea like ʻole ma ke kaiapuni lewa. Hōʻike nā hopena hoʻokolohua e hōʻike ana ke ʻano o ka quantum dot i nā pono kūpaʻa kūkulu kupaianaha ma ke kaiapuni ʻāpana ikehu kiʻekiʻe o ka orbit Honua haʻahaʻa.

Ma muli o kēia ʻike, ua hoʻolālā pono ka hui noiʻi a hana i kahi ʻano hou olaser kiko kuantum. Hōʻike ka hāmeʻa i ka hana maikaʻi loa ma nā wahi koʻikoʻi: ma ka hoʻokomo ʻana o ka proton 3MeV a hiki i ka 7 × 1013 cm-2, mālama ka laser i kahi kumu hoʻonui linewidth kokoke i ka ʻole; ʻO ka awelika o ka walaʻau pili (RIN) o ka hāmeʻa he haʻahaʻa e like me -163 dB/Hz, ʻoiai ma ka nui o ka injection, piʻi ka RIN ma 1 dB/Hz wale nō. Eia kekahi, hiki i ka laser ke hana paʻa ma lalo o ke kūlana manaʻo kukui ikaika o -3.1dB. ʻAʻole wale kēia hoʻokō e hōʻoia i nā hopena noiʻi hou loa o nā lasers kamaʻilio ākea, akā hāʻawi pū kekahi i kahi hilinaʻi.hopena kumu kukuino ke kūkulu ʻana i nā pūnaewele kamaʻilio ukali hana kiʻekiʻe.