Bayani game da babban ikoLaser na semiconductorci gaba kashi na daya
Yayin da inganci da ƙarfi ke ci gaba da inganta, diodes na laser (direban diodes na laser) zai ci gaba da maye gurbin fasahohin gargajiya, ta haka ne zai canza yadda ake yin abubuwa da kuma ba da damar haɓaka sabbin abubuwa. Fahimtar muhimman ci gaba a cikin lasers masu ƙarfin gaske na semiconductor shi ma yana da iyaka. An fara nuna canjin electrons zuwa lasers ta hanyar semiconductors a cikin 1962, kuma an biyo bayan ci gaba iri-iri waɗanda suka haifar da babban ci gaba a cikin canza electrons zuwa lasers masu yawan aiki. Waɗannan ci gaba sun goyi bayan mahimman aikace-aikace daga ajiyar gani zuwa hanyar sadarwa ta gani zuwa fannoni daban-daban na masana'antu.
Bitar waɗannan ci gaban da kuma ci gaban da suka samu ya nuna yuwuwar samun babban tasiri da kuma yaɗuwa a fannoni da dama na tattalin arziki. A gaskiya ma, tare da ci gaba da inganta na'urorin laser masu ƙarfi na semiconductor, fannin aikace-aikacensa zai hanzarta faɗaɗawa, kuma zai yi tasiri mai yawa ga ci gaban tattalin arziki.
Hoto na 1: Kwatanta haske da dokar Moore ta lasers masu ƙarfin lantarki
na'urorin laser masu ƙarfi da aka yi amfani da su wajen haɗa diode da kumana'urorin laser na fiber
Ci gaban da aka samu a fannin na'urorin laser masu ƙarfin gaske (seconductor lasers) ya kuma haifar da ci gaban fasahar laser mai tushe, inda ake amfani da na'urorin laser masu ƙarfin gaske (seconductor lasers) don motsa lu'ulu'u masu ƙarfin gaske (diode-pumped solid-state lasers) ko kuma zare masu ƙarfin gaske (fiber lasers).
Duk da cewa na'urorin laser na semiconductor suna ba da ingantaccen makamashin laser, ƙarami, da araha, amma suna da manyan ƙuntatawa guda biyu: ba sa adana makamashi kuma haskensu yana da iyaka. Ainihin, aikace-aikace da yawa suna buƙatar na'urori masu amfani guda biyu; Ana amfani da ɗaya don canza wutar lantarki zuwa fitar da hasken laser, ɗayan kuma ana amfani da shi don haɓaka hasken wannan fitar da iska.
Na'urorin laser masu ƙarfi da aka yi amfani da su wajen fitar da diode.
A ƙarshen shekarun 1980, amfani da na'urorin laser na semiconductor don yin famfo da na'urorin laser na solid-state ya fara samun babban riba a kasuwanci. Na'urorin laser na solid-state da aka yi amfani da diode (DPSSL) sun rage girma da sarkakiyar tsarin sarrafa zafi (musamman masu sanyaya daki) kuma sun sami kayayyaki, waɗanda a tarihi sun yi amfani da fitilun arc don yin famfo da na'urorin laser na solid-state.
An zaɓi tsawon tsawon laser semiconductor bisa ga haɗuwar halayen shaye-shaye na spectral tare da matsakaicin samun laser ɗin solid-state, wanda zai iya rage nauyin zafi sosai idan aka kwatanta da faɗin watsawar fitilar arc. Idan aka yi la'akari da shaharar lasers ɗin neodymium da ke fitar da tsawon rai na 1064nm, laser semiconductor 808nm ya zama samfurin da ya fi samarwa a cikin samar da laser semiconductor tsawon sama da shekaru 20.
Ingantaccen ingancin famfon diode na ƙarni na biyu ya yiwu ne ta hanyar ƙaruwar hasken lasers na semiconductor masu yawa da kuma ikon daidaita kunkuntar layin fitar da hayaki ta amfani da manyan Bragg gratings (VBGS) a tsakiyar shekarun 2000. Halayen shan iska mai rauni da kunkuntar na kusan 880nm sun tayar da sha'awa sosai ga diodes na famfo masu haske mai ƙarfi. Waɗannan lasers masu aiki mafi girma suna ba da damar famfon neodymium kai tsaye a matakin laser na sama na 4F3/2, rage gibin quantum kuma ta haka ne inganta cire yanayin asali a matsakaicin ƙarfi, wanda in ba haka ba ruwan tabarau na thermal zai iyakance shi.
A farkon shekaru goma na biyu na wannan ƙarni, mun shaida ƙaruwar ƙarfi mai yawa a cikin na'urorin laser 1064nm na yanayin transverse guda ɗaya, da kuma na'urorin laser masu canza mitar su waɗanda ke aiki a cikin raƙuman haske da na ultraviolet. Ganin tsawon lokacin ƙarfin Nd: YAG da Nd: YVO4 na sama, waɗannan ayyukan DPSSL Q-switched suna ba da ƙarfin bugun jini mai yawa da ƙarfin kololuwa, wanda hakan ya sa suka dace da sarrafa kayan ablative da aikace-aikacen micromachining mai inganci.
Lokacin Saƙo: Nuwamba-06-2023