Ulawulo lwe-Pulse ububanzi beulawulo lwe-laser pulseiteknoloji
Ulawulo lwe-pulse ye-laser lelinye lamakhonkco aphambili kwiiteknoloji laser, echaphazela ngokuthe ngqo ukusebenza kunye nefuthe lesicelo se-laser. Eli phepha liza kulungisa ngokucwangcisiweyo ulawulo lwe-pulse ububanzi, ulawulo lwe-pulse frequency kunye ne-modulation yetekhnoloji enxulumeneyo, kwaye izame ukuba yingcali, i-comprehensive kunye nengqiqo.
1. Ingcamango yobubanzi be-pulse
I-Pulse Width ye-laser ibhekisela kwixesha le-laser pulse, eyona parameter ephambili yokuchaza iimpawu zexesha le-laser output. Kwii-laser ze-ultra-short pulse (ezifana ne-nanosecond, i-picosecond kunye nee-laser ze-femtosecond), imfutshane yobubanzi be-pulse, iphezulu amandla aphezulu, kunye nefuthe elincinci le-thermal, elilungele ukuchaneka kwe-machining okanye uphando lwezenzululwazi.
2. Izinto ezichaphazela ububanzi be-laser pulse Ububanzi be-pulse ye-laser buchatshazelwa zizinto ezahlukeneyo, ngokukodwa ezibandakanya le miba ilandelayo:
a. Iimpawu zendlela yokufumana inzuzo. Iindidi ezahlukeneyo zemithombo yeendaba zinesakhiwo esikhethekileyo senqanaba lamandla kunye nobomi be-fluorescence, obuchaphazela ngokuthe ngqo isizukulwana kunye nobubanzi be-pulse ye-laser pulse. Umzekelo, iilaser zombuso oqinileyo, iikristale zeNd:YAG kunye neTi:Iikristale zeSapphire zixhaphakile kwimithombo yeendaba yelaser. I-laser yegesi, efana ne-carbon dioxide (CO₂) lasers kunye ne-helium-neon (HeNe) lasers, ngokuqhelekileyo ivelisa iipulse ezinde ngenxa yesakhiwo se-molecular kunye neempawu zombuso ezivuyisayo; I-lases semiconductor lasers, ngokulawula ixesha lokudibanisa umthwali, inokufikelela kububanzi be-pulse ukusuka kwi-nanoseconds ukuya kwi-picoseconds.
Uyilo lwe-laser cavity lunempembelelo ebalulekileyo kububanzi be-pulse, kubandakanywa: ubude be-cavity, ubude be-laser cavity bumisela ixesha elifunekayo ukuze ukukhanya kuhambe kanye kwaye kwakhona kwi-cavity, umngxuma omde uya kukhokelela kububanzi be-pulse ende, ngelixa i-cavity emfutshane inceda kwisizukulwana se-ultra-short pulses; I-Reflectance: Isibonisi esinembonakalo ephezulu inokunyusa ubuninzi be-photon kwi-cavity, ngaloo ndlela iphucula umphumo wokuzuza, kodwa ukubonakaliswa okuphezulu kunokunyusa ilahleko kwi-cavity kwaye kuchaphazele ukuzinza kobubanzi be-pulse; Isikhundla sokufumana i-medium kunye nesikhundla sokufumana i-medium kwi-cavity kuya kuchaphazela ixesha lokusebenzisana phakathi kwe-photon kunye ne-medium gain, kwaye emva koko kuchaphazele ububanzi be-pulse.
c. Itekhnoloji yokutshintsha i-Q kunye netekhnoloji yokutshixa imowudi ziindlela ezimbini ezibalulekileyo zokuqonda i-pulse laser output kunye nolawulo lobubanzi be-pulse.
d. Umthombo wempompo kunye nemodi yempompo Uzinzo lwamandla omthombo wempompo kunye nokukhethwa kwendlela yempompo kwakhona kunempembelelo ebalulekileyo kububanzi be-pulse.
3. Iindlela eziqhelekileyo zokulawula ububanzi be-pulse
a. Guqula indlela yokusebenza ye-laser: indlela yokusebenza ye-laser iya kuchaphazela ngokuthe ngqo ububanzi bayo be-pulse. Ububanzi be-pulse bunokulawulwa ngokulungelelanisa ezi parameters zilandelayo: i-frequency kunye nokuqina komthombo wempompo, igalelo lamandla omthombo wempompo, kunye neqondo le-particle inversion yabantu kwi-medium gain; Ukubonakaliswa kwe-lens yemveliso kutshintsha ukusebenza kakuhle kwempendulo kwi-resonator, ngaloo ndlela kuchaphazela inkqubo yokwakheka kwe-pulse.
b. Lawula imilo ye-pulse: lungisa ngokungathanga ngqo ububanzi be-pulse ngokuguqula imilo ye-laser pulse.
c. Ukumodareyitha kwangoku: Ngokutshintsha imveliso yangoku yonikezelo lwamandla ukulawula ukuhanjiswa kwamanqanaba ombane we-elektroniki kwi-laser medium, kwaye emva koko utshintshe ububanzi be-pulse. Le ndlela inesantya sokuphendula ngokukhawuleza kwaye ifanelekile kwiimeko zesicelo ezifuna ukulungiswa ngokukhawuleza.
d. Ukumodareyitha kokutshintsha: ngokulawula imeko yokutshintsha kwe-laser ukulungelelanisa ububanzi be-pulse.
e. Ulawulo lobushushu: utshintsho lobushushu luya kuchaphazela ubume benqanaba le-electron ye-laser, ngaloo ndlela luchaphazela ngokungangqalanga ububanzi be-pulse.
f. Sebenzisa itekhnoloji yokumodareyitha: Itekhnoloji yokumodareyitha yindlela esebenzayo yokulawula ngokuchanekileyo ububanzi be-pulse.
Ukumodareyitha kweLaseritekhnoloji bubuchwepheshe obusebenzisa i-laser njengomphathi kwaye ilayisha ulwazi kuyo. Ngokobudlelwane kunye ne-laser inokwahlulwa ibe yimodulation yangaphakathi kunye nokuguqulwa kwangaphandle. Ukumodareyitha kwangaphakathi kubhekiselele kwimowudi yokumodareyitha apho isignali emoduliweyo ilayishwa kwinkqubo ye-laser oscillation ukuguqula i-laser oscillation parameters kwaye ngaloo ndlela utshintshe iimpawu ze-laser output. Ukumodareyitha kwangaphandle kubhekiselele kwimowudi yokumodareyitha apho isignali yokumodareyitha yongezwa emva kokuba i-laser yenziwe, kwaye iimpawu ze-laser eziphumayo zitshintshwa ngaphandle kokutshintsha iiparitha ze-oscillation ze-laser.
Itekhnoloji yokumodareyitha ingaphinda ihlelwe ngokweefom zokumodareyitha komthwali, kubandakanywa i-analog modulation, i-pulse modulation, i-digital modulation (i-pulse code modulation); Ngokweeparamitha zokumodareyitha, yahlulwe ngokumodareyitha kokuqina kunye nokumodareyitha kwesigaba.
Imodyuli yokuqina: Ububanzi be-pulse bulawulwa ngokulungelelanisa utshintsho lwe-laser light intensity.
Imodyuli yenqanaba: Ububanzi be-pulse buhlengahlengiswa ngokutshintsha isigaba sokukhanya kokukhanya.
I-amplifier evaliweyo yesigaba: Ngokusebenzisa i-modulation ye-amplifier evaliweyo, ububanzi be-laser pulse bunokulungiswa ngokuchanekileyo.
Ixesha lokuposa: Mar-24-2025