I-Lumispot Technology Co., Ltd., ngokusekelwe kwiminyaka yophando nophuhliso, iphuhlise ngempumelelo i-laser encinci kunye ne-pulsed esindayo enamandla angama-80mJ, i-repeat frequency ye-20 Hz kunye ne-human eye-safe wavelength ye-1.57μm. Esi siphumo sophando siphunyezwe ngokwandisa ukusebenza kakuhle kwengxoxo ye-KTP-OPO kunye nokwenza ngcono imveliso ye-pump source diode laser module. Ngokweziphumo zovavanyo, le laser ihlangabezana neemfuno zobushushu obusebenzayo obubanzi ukusuka kwi--45 ℃ ukuya kwi-65 ℃ ngokusebenza okugqwesileyo, ifikelela kwinqanaba eliphezulu eTshayina.
I-Pulsed Laser Rangefinder sisixhobo sokulinganisa umgama ngenxa ye-laser pulse ejoliswe kwindawo ekujoliswe kuyo, kunye nobuchule bokufumana uluhlu oluchanekileyo, amandla aqinileyo okulwa nokuphazamiseka kunye nesakhiwo esincinci. Le mveliso isetyenziswa kakhulu ekulinganiseni ubunjineli nakwezinye iindawo. Le ndlela yokufumana uluhlu lwe-pulsed laser isetyenziswa kakhulu ekusebenziseni umlinganiselo womgama omde. Kule rangefinder yomgama omde, kungcono ukukhetha i-solid-state laser enamandla aphezulu kunye ne-angle encinci ye-scatter beam, kusetyenziswa itekhnoloji ye-Q-switching ukuvelisa ii-nanosecond laser pulses.
Iindlela ezifanelekileyo ze-pulsed laser rangefinder zezi zilandelayo:
(1) I-Laser Rangefinder ekhuselekileyo emehlweni omntu: I-1.57um optical parametric oscillator ithatha indawo ye-1.06um wavelength laser rangefinder yendabuko kwiindawo ezininzi zokufumana ulwahlulo.
(2) I-Miniaturized Remote Laser Rangefinder enobukhulu obuncinci nobunzima obuphantsi.
Ngokuphuculwa kokusebenza kwenkqubo yokufumanisa nemifanekiso, kufuneka izixhobo zokulinganisa i-laser ezikude ezikwaziyo ukulinganisa iithagethi ezincinci ze-0.1m² ngaphezulu kwe-20 km. Ke ngoko, kungxamisekile ukufunda i-laser rangefinder esebenza kakhulu.
Kwiminyaka yakutshanje, iLumispot Tech isebenzise umgudu wophando, uyilo, ukuvelisa kunye nokuthengisa i-1.57um wavelength eye-safe solid state laser ene-angle encinci yokusasazeka kwemitha kunye nokusebenza okuphezulu.
Kutshanje, iLumispot Tech, iyile i-laser epholileyo enobude obungange-1.57um ekhuselekile emehlweni enamandla aphezulu kunye nesakhiwo esincinci, ngenxa yemfuno ebonakalayo kuphando lwe-laser rangefinder yomgama omde. Emva kovavanyo, le laser ibonisa amathuba amaninzi okusetyenziswa, inamandla okusebenza kakuhle, iyakwazi ukuzivumelanisa nokusingqongileyo phantsi kobubanzi bobushushu bokusebenza ukusuka kwi-40 ukuya kwi-65 degrees celsius,
Ngale equation ilandelayo, kunye nobungakanani obumiselweyo bezinye iireferensi, ngokuphucula amandla okukhupha okuphezulu kunye nokunciphisa i-angle yokusasazeka kwe-beam, kunokuphucula umgama wokulinganisa we-rangefinder. Ngenxa yoko, izinto ezi-2: ixabiso lamandla okukhupha okuphezulu kunye ne-angle yokusasazeka kwe-beam encinci i-laser yesakhiwo esincinci enomsebenzi opholileyo womoya yinxalenye ebalulekileyo egqibayo amandla okulinganisa umgama we-rangefinder ethile.
Eyona nto iphambili ekufezekiseni i-laser ene-wavelength ekhuselekileyo emehlweni omntu yindlela ye-optical parametric oscillator (OPO), kuquka ukhetho lwe-crystal engeyiyo emgceni, indlela yokufanisa isigaba kunye noyilo lwesakhiwo se-OPO interiol. Ukukhetha i-crystal engeyiyo emgceni kuxhomekeke kwi-coefficient enkulu engeyiyo emgceni, umda ophezulu wokumelana nomonakalo, iipropati zekhemikhali ezizinzileyo kunye neempawu zomzimba kunye neendlela zokukhula ezivuthiweyo njl.njl., ukufanisa isigaba kufuneka kuthathe indawo yokuqala. Khetha indlela yokufanisa isigaba engeyiyo emgceni ene-engile enkulu yokwamkela kunye ne-engile encinci yokusuka; Isakhiwo se-cavity ye-OPO kufuneka siqwalasele ukusebenza kakuhle kunye nomgangatho we-beam ngokusekelwe ekuqinisekiseni ukuthembeka. Ijika lokutshintsha kwe-wavelength ye-KTP-OPO ene-engile yokufanisa isigaba, xa i-θ=90°, ukukhanya kwesignali kunokukhupha ngqo i-laser ekhuselekileyo amehlo omntu. Ke ngoko, i-crystal eyilwe ngayo isikiwe kwicala elinye, ukufanisa i-angle kusetyenziswa i-θ=90°，φ=0°, oko kukuthi, ukusetyenziswa kwendlela yokufanisa iklasi, xa i-crystal effective nonlinear coefficient yeyona inkulu kwaye akukho siphumo sokusasazeka.
Ngokusekelwe kwingqwalasela epheleleyo yale ngxaki ingentla, kunye nenqanaba lophuhliso lwendlela yangoku yelaser kunye nezixhobo zelaser zasekhaya, isisombululo sobugcisa bokwenza ngcono sesi: I-OPO yamkela uyilo lweKTP-OPO olungafaniyo nolubalulekileyo lweKTP-OPO yeKlasi yesiBini; iiKTP-OPO ezi-2 zihambelana ngokuthe nkqo kwisakhiwo se-tandem ukuphucula ukusebenza kakuhle kokuguqulwa kunye nokuthembeka kwelaser njengoko kubonisiwe kwiUmfanekiso 1Ngaphezulu.
Umthombo wepompo luphando oluzenzela lona kwaye luphuhlise uluhlu lwelaser ye-conductive cooled semiconductor, enomjikelo womsebenzi we-2% ubuninzi, amandla aphezulu e-100W kwi-single bar kunye namandla okusebenza ewonke e-12,000W. I-prism ye-right-angle, isibuko esikhanyayo kunye ne-polarizer zenza i-folded polarization coupled output resonant cavity, kwaye i-prism ye-right-angle kunye ne-waveplate ziyajikeleziswa ukuze kufunyanwe i-1064 nm laser coupling output oyifunayo. Indlela ye-Q modulation yi-pressurized active electro-optical Q modulation esekelwe kwi-KDP crystal.
Umfanekiso 1Iikristale ezimbini zeKTP ezidityanisiweyo kuthotho
Kule nxaki, i-Prec yeyona nto incinci kakhulu enokubonwa;
I-Pout yixabiso eliphezulu lemveliso yamandla omsebenzi;
U-D luvulelo lwenkqubo ye-optical olufumanayo;
t yinkqubo yokudlulisa idatha ye-optical;
I-θ yi-engile yokusasazeka kwe-emitter beam ye-laser;
r lizinga lokubonakalisa le thagethi;
U-A yindawo elinganayo nejolise kuyo;
U-R lolona luhlu lukhulu lokulinganisa;
I-σ yi-Atmospheric absorption coefficient.
Umfanekiso 2: Imodyuli yoluhlu lwebha enemilo ye-arc nge-self-development,
kunye nentonga yekristale yeYAG embindini.
IUmfanekiso 2yi-arc-shaped bar stacks, ebeka ii-YAG crystal rods njenge-laser medium ngaphakathi kwimodyuli, kunye noxinzelelo lwe-1%. Ukusombulula impikiswano phakathi kwentshukumo ye-lateral laser kunye nokusasazwa kwe-symmetric ye-laser output, kusetyenziswe usasazo olulinganayo lwe-LD array kwi-engile ye-120 degrees. Umthombo wepompo yi-1064nm wavelength, iimodyuli ezimbini ze-6000W curved array bar kwi-series series semiconductor tandem pumping. Amandla okukhupha yi-0-250mJ enobubanzi be-pulse obumalunga ne-10ns kunye ne-frequency enzima ye-20Hz. kusetyenziswa i-folded cavity, kwaye i-1.57μm wavelength laser ikhutshwa emva kwe-tandem KTP nonlinear crystal.
Igrafu 3Umzobo olinganayo we-1.57um wavelength pulsed laser
Igrafu 4Izixhobo zesampulu yesampulu yelaser ezishukumayo ze-1.57um wavelength
Igrafu 5:Imveliso ye-1.57μm
Igrafu 6:Ukusebenza kakuhle kokuguqulwa komthombo wepompo
Ukulungelelanisa umlinganiselo wamandla elaser ukuze kulinganiswe amandla okukhupha eentlobo ezimbini zobude be-wavelength ngokulandelelana. Ngokwegrafu eboniswe ngezantsi, ukubuyiswa kwexabiso lamandla yayilixabiso eliphakathi elisebenza phantsi kwe-20Hz kunye nexesha lokusebenza elingumzuzu omnye. Phakathi kwazo, amandla aveliswa yi-1.57um wavelenth laser inotshintsho oluhambelanayo nolwalamano lwamandla omthombo wephampu ye-wavelength ye-1064nm. Xa amandla omthombo wephampu elingana ne-220mJ, amandla okukhupha e-1.57um wavelength laser iyakwazi ukufikelela kwi-80mJ, kunye nesantya sokuguqula ukuya kuthi ga kwi-35%. Ekubeni isibane sesignali se-OPO siveliswa phantsi kwesenzo sobuninzi bamandla athile okukhanya kwe-frequency esisiseko, ixabiso laso lomgca liphezulu kunexabiso lomgca we-1064 nm fundamental frequency light, kwaye amandla okukhupha ayanda ngokukhawuleza emva kokuba amandla okupompa egqithe ixabiso lomgca we-OPO. Ubudlelwane phakathi kwamandla okukhupha i-OPO kunye nokusebenza kakuhle kunye namandla okukhupha ukukhanya aqhelekileyo buboniswe kumfanekiso, apho kunokubonwa khona ukuba ukusebenza kakuhle kokuguqula i-OPO kunokufikelela kwi-35%.
Ekugqibeleni, imveliso ye-laser pulse eyi-1.57μm wavelength enamandla angaphezu kwe-80mJ kunye nobubanzi be-laser pulse obuyi-8.5ns bunokuphunyezwa. I-engile yokwahluka kwe-output laser beam nge-laser beam expander yi-0.3mrad. Ii-simulations kunye nohlalutyo zibonisa ukuba amandla okulinganisa uluhlu lwe-pulsed laser rangefinder esebenzisa le laser anokudlula i-30km.
| Ubude bamaza | 1570±5nm |
| Ukuphindaphinda rhoqo | 20Hz |
| I-engile yokusasazeka kwemisebe yelaser (ukwandiswa kwemisebe) | 0.3-0.6mrad |
| Ububanzi bePulse | 8.5ns |
| Amandla ePulse | 80mJ |
| Amaxesha Okusebenza Aqhubekayo | 5 imizuzu |
| Ubunzima | ≤1.2kg |
| Ubushushu bokusebenza | -40℃~65℃ |
| Ubushushu bokugcina | -50℃~65℃ |
Ukongeza ekuphuculeni uphando lwayo lwetekhnoloji kunye notyalo-mali lophuhliso, ukuqinisa ukwakhiwa kweqela le-R&D kunye nokufezekisa inkqubo yophuhliso lwetekhnoloji ye-R&D, iLumispot Tech ikwasebenzisana ngokukhutheleyo namaziko ophando angaphandle kuphando lweshishini-lweyunivesithi, kwaye iseke ubudlelwane obuhle bentsebenziswano neengcali zoshishino ezidumileyo zasekhaya. Itekhnoloji ephambili kunye namacandelo aphambili aphuhliswe ngokuzimeleyo, onke amacandelo aphambili aphuhlisiwe kwaye enziwe ngokuzimeleyo, kwaye zonke izixhobo zisetyenzisiwe. I-Bright Source Laser isakhawulezisa isantya sophuhliso lwetekhnoloji kunye nophuhliso, kwaye iya kuqhubeka nokwazisa iindleko eziphantsi kunye neemodyuli ze-laser yokhuseleko lwamehlo lomntu ezinokuthenjwa ngakumbi ukwanelisa imfuno yemarike.
Ixesha lokuthumela: Juni-21-2023