Fasahar Laser mai sauri mai inganci wacce ba ta da matsala

Wafer mai sauri sosai yana aikifasahar laser
Babban ikolasers masu sauriana amfani da su sosai a fannin kera kayayyaki, bayanai, na'urorin lantarki, magungunan halittu, tsaron ƙasa da kuma fannin soja, kuma binciken kimiyya mai dacewa yana da matuƙar muhimmanci don haɓaka sabbin abubuwa na kimiyya da fasaha na ƙasa da kuma ci gaba mai inganci.tsarin laserTare da fa'idodin matsakaicin ƙarfi, babban ƙarfin bugun jini da ingantaccen ingancin hasken rana yana da babban buƙata a fannin kimiyyar lissafi ta attosecond, sarrafa kayan aiki da sauran fannoni na kimiyya da masana'antu, kuma ƙasashe a duk faɗin duniya sun damu sosai.
Kwanan nan, wata ƙungiyar bincike a China ta yi amfani da tsarin wafer mai haɓaka kanta da fasahar haɓaka haɓakawa don cimma babban aiki (tsayawa mai ƙarfi, babban iko, ingancin katako mai ƙarfi, babban inganci) wafer mai sauri sosailaserfitarwa. Ta hanyar ƙirar ramin amplifier mai sabuntawa da kuma kula da zafin saman da kwanciyar hankali na injina na lu'ulu'u na diski a cikin ramin, an cimma fitowar laser na kuzarin bugun guda ɗaya >300 μJ, faɗin bugun <7 ps, matsakaicin ƙarfi >150 W, kuma mafi girman ingancin juyawar haske zuwa haske zai iya kaiwa 61%, wanda kuma shine mafi girman ingancin juyawar gani da aka ruwaito zuwa yanzu. Matsayin ingancin haske M2 <1.06@150W, RMS na tsawon awanni 8 <0.33%, wannan nasarar tana nuna muhimmin ci gaba a cikin laser wafer mai ƙarfin aiki mai ƙarfi, wanda zai samar da ƙarin damar yin amfani da laser mai ƙarfin aiki mai ƙarfi.

Yawan maimaitawa mai yawa, tsarin haɓaka wafer mai ƙarfi
An nuna tsarin amplifier laser wafer a cikin Hoto na 1. Ya haɗa da tushen tsaban zare, kan laser mai siriri da rami mai sake farfadowa. An yi amfani da oscillator mai fiber mai ytterbium tare da matsakaicin ƙarfin 15 mW, tsawon tsayin tsakiya na 1030 nm, faɗin bugun jini na 7.1 ps da kuma saurin maimaitawa na 30 MHz a matsayin tushen iri. Kan laser wafer yana amfani da lu'ulu'u na Yb: YAG na gida tare da diamita na 8.8 mm da kauri na 150 µm da tsarin famfo na bugun jini na 48. Tushen famfon yana amfani da layin sifili-phonon LD tare da tsawon makullin nm na 969 nm, wanda ke rage lahani na quantum zuwa 5.8%. Tsarin sanyaya na musamman zai iya sanyaya lu'ulu'u na wafer yadda ya kamata kuma ya tabbatar da kwanciyar hankali na ramin sake farfadowa. Ramin ƙarawa mai sake farfadowa ya ƙunshi ƙwayoyin Pockels (PC), Thin Film Polarizers (TFP), Kwata-Wave Plates (QWP) da kuma resonator mai ƙarfi. Ana amfani da masu raba haske don hana hasken da aka ƙara daga lalata tushen iri. Ana amfani da tsarin mai raba haske wanda ya ƙunshi TFP1, Rotator da Half-Wave Plates (HWP) don ware tsaban shigarwa da bugun da aka ƙara. Bugawar iri tana shiga ɗakin ƙarawa ta hanyar TFP2. Lu'ulu'u na Barium metaborate (BBO), PC, da QWP suna haɗuwa don samar da makullin gani wanda ke amfani da ƙarfin lantarki mai yawa lokaci-lokaci zuwa PC don zaɓar bugun iri da yaɗa shi baya da gaba a cikin ramin. Bugawar da ake so tana juyawa a cikin ramin kuma ana ƙara ta yadda ya kamata yayin yaɗawar tafiya ta zagaye ta hanyar daidaita lokacin matsi na akwatin.
Amplifier na sake farfaɗo da wafer yana nuna kyakkyawan aikin fitarwa kuma zai taka muhimmiyar rawa a fannoni masu inganci kamar su lithography na ultraviolet mai tsauri, tushen famfon attosecond, na'urorin lantarki na 3C, da sabbin motocin makamashi. A lokaci guda, ana sa ran amfani da fasahar laser na wafer ga manyan masu ƙarfi.na'urorin Laser, samar da sabuwar hanyar gwaji don ƙirƙirar da gano abubuwa masu kyau a kan sikelin sararin samaniya nanoscale da sikelin lokaci na femtosecond. Da nufin biyan manyan buƙatun ƙasar, ƙungiyar aikin za ta ci gaba da mai da hankali kan ƙirƙirar fasahar laser, ƙara samun nasarar shirya lu'ulu'u masu ƙarfi na laser, da kuma inganta ingantaccen bincike da haɓaka na'urorin laser a fannonin bayanai, makamashi, kayan aiki masu inganci da sauransu.