Lumispot Technology Co., Ltd., kutengera zaka zambiri za kafukufuku ndi chitukuko, idapanga bwino laser yaying'ono komanso yopepuka yokhala ndi mphamvu ya 80mJ, kubwerezabwereza kwa 20 Hz ndi kutalika kwa mafunde osavulaza maso a anthu a 1.57μm. Zotsatira za kafukufukuyu zidapezeka powonjezera luso la kuyankhulana la KTP-OPO ndikukonza bwino kutulutsa kwa module ya laser ya diode ya pampu. Malinga ndi zotsatira za mayeso, laser iyi imakwaniritsa zofunikira pa kutentha kwakukulu kuyambira -45 ℃ mpaka 65 ℃ ndi magwiridwe antchito abwino kwambiri, kufikira pamlingo wapamwamba ku China.
Pulsed Laser Rangefinder ndi chida choyezera mtunda chifukwa cha luso la laser pulse lolunjika ku cholinga, ndi ubwino wa luso lapamwamba lofufuza malo, mphamvu yamphamvu yolimbana ndi kusokoneza komanso kapangidwe kakang'ono. Chogulitsachi chimagwiritsidwa ntchito kwambiri poyesa uinjiniya ndi madera ena. Njira iyi yofufuza malo a pulsed laser imagwiritsidwa ntchito kwambiri poyesa mtunda wautali. Mu rangefinder iyi ya mtunda wautali, ndibwino kusankha laser yolimba yokhala ndi mphamvu zambiri komanso ngodya yaying'ono yogawa kuwala, pogwiritsa ntchito ukadaulo wa Q-switching kuti itulutse ma pulse a nanosecond laser.
Ma trend ofunika kwambiri a pulsed laser rangefinder ndi awa:
(1) Choyezera kuwala kwa laser choteteza maso a anthu: 1.57um optical parametric oscillator pang'onopang'ono ikusintha malo a choyezera kuwala cha laser cha 1.06um wavelength m'magawo ambiri a rangefinding.
(2) Miniaturized Remote Laser Rangefinder yokhala ndi kukula kochepa komanso kopepuka.
Chifukwa cha kusintha kwa magwiridwe antchito a makina ozindikira ndi kujambula zithunzi, pakufunika zida zoyesera za laser zakutali zomwe zimatha kuyeza zolinga zazing'ono za 0.1m² pa mtunda wa makilomita 20. Chifukwa chake, ndikofunikira kuphunzira za chida choyesera cha laser chapamwamba kwambiri.
M'zaka zaposachedwa, Lumispot Tech yayesetsa kufufuza, kupanga, kupanga, ndi kugulitsa laser yolimba ya 1.57um wavelength yokhala ndi ngodya yaying'ono yofalikira komanso magwiridwe antchito apamwamba.
Posachedwapa, Lumispot Tech, idapanga laser yoziziritsidwa ndi mpweya ya 1.57um yotetezeka maso yokhala ndi mphamvu yayikulu komanso kapangidwe kakang'ono, chifukwa cha kufunikira kofunikira mu kafukufuku wa kuchepetsa kufalikira kwa laser yakutali. Pambuyo pa kuyesaku, laser iyi ikuwonetsa kuthekera kogwiritsa ntchito kwakukulu, inali ndi magwiridwe antchito abwino kwambiri, yosinthika bwino ndi chilengedwe pansi pa kutentha kwakukulu kogwira ntchito kuyambira -40 mpaka 65 digiri Celsius,
Kudzera mu equation yotsatirayi, ndi kuchuluka kokhazikika kwa zinthu zina, mwa kukweza mphamvu yotulutsa ya peak ndikuchepetsa ngodya yobalalitsira ya beam, imatha kukonza mtunda woyezera wa rangefinder. Zotsatira zake, zinthu ziwiri: kufunika kwa mphamvu yotulutsa ya peak ndi ngodya yaying'ono yobalalitsira ya beam, kapangidwe ka compact, laser yokhala ndi ntchito yoziziritsidwa ndi mpweya, ndiye gawo lofunikira posankha kuthekera koyezera mtunda wa rangefinder inayake.
Gawo lofunika kwambiri kuti laser igwiritsidwe ntchito ndi mafunde a anthu ndi njira ya optical parametric oscillator (OPO), kuphatikizapo njira ya kristalo yopanda mzere, njira yofananira magawo ndi kapangidwe ka OPO interiol. Kusankha kristalo yopanda mzere kumadalira coefficient yayikulu yopanda mzere, malire owonongeka kwambiri, katundu wokhazikika wa mankhwala ndi thupi komanso njira zokulira zokhwima ndi zina zotero, kufananiza magawo kuyenera kukhala patsogolo. Sankhani njira yofananira magawo yopanda malire yokhala ndi ngodya yayikulu yolandirira ndi ngodya yaying'ono yochoka; Kapangidwe ka OPO cavity kayenera kuganizira magwiridwe antchito ndi mtundu wa kuwala potengera kudalirika. Kusintha kwa mafunde a KTP-OPO ndi ngodya yofananira magawo, pamene θ=90°, kuwala kwa chizindikiro kumatha kutulutsa laser yotetezeka ya maso a anthu. Chifukwa chake, kristalo yopangidwayo imadulidwa mbali imodzi, kufananiza ngodya kumagwiritsidwa ntchito θ=90°，φ=0°, ndiko kuti, kugwiritsa ntchito njira yofananira ya kalasi, pamene coefficient yogwira ntchito ya kristalo yopanda mzere ndi yayikulu kwambiri ndipo palibe mphamvu yofalikira.
Kutengera ndi kuganizira kwathunthu kwa nkhaniyi pamwambapa, kuphatikiza ndi kukula kwa njira zamakono ndi zida za laser zapakhomo, yankho laukadaulo lokonza bwino ndi ili: OPO imagwiritsa ntchito kapangidwe ka KTP-OPO ka Class II kosakhala kofunikira; ma KTP-OPO awiriwa amapangidwa mozungulira kuti apititse patsogolo kutembenuka bwino komanso kudalirika kwa laser monga momwe zasonyezedwera muChithunzi 1Pamwamba.
Gwero la pampu ndi kafukufuku wodzifufuza wokha komanso wopanga conductive cooled semiconductor laser array, yokhala ndi duty cycle ya 2% osapitirira, mphamvu yayikulu ya 100W ya single bar ndi mphamvu yonse yogwirira ntchito ya 12,000W. Prism ya right-angle, planar all-reflective galasi ndi polarizer zimapanga folded polarization coupled output resonant cavity, ndipo prism ya right-angle ndi waveplate zimazunguliridwa kuti zipeze output yofunikira ya laser ya 1064 nm. Njira ya Q modulation ndi pressurized active electro-optical Q modulation yochokera pa KDP crystal.
Chithunzi 1Makristalo awiri a KTP olumikizidwa motsatizana
Mu equation iyi, Prec ndiye mphamvu yaying'ono kwambiri yogwira ntchito;
Pout ndiye mtengo wapamwamba kwambiri wa mphamvu yogwirira ntchito;
D ndi malo otseguka a dongosolo la kuwala;
t ndi njira yotumizira mauthenga a kuwala;
θ ndi ngodya yobalalitsira ya laser;
r ndi chiŵerengero cha kuwunikira kwa cholinga;
A ndi dera lofanana ndi lomwe lili ndi gawo lofanana;
R ndiye mulingo waukulu kwambiri woyezera;
σ ndi chiŵerengero cha kuyamwa kwa mpweya mumlengalenga.
Chithunzi 2: Gawo la mzere wozungulira wa mipiringidzo kudzera pakudzipanga wekha,
ndi ndodo ya kristalo ya YAG pakati.
TheChithunzi 2Ndi mipiringidzo yooneka ngati arc, yomwe imayika ndodo za kristalo za YAG ngati cholumikizira cha laser mkati mwa module, yokhala ndi kuchuluka kwa 1%. Pofuna kuthetsa kutsutsana pakati pa kayendedwe ka laser ya lateral ndi kugawa kofanana kwa kutulutsa kwa laser, kugawa kofanana kwa LD array pa ngodya ya madigiri 120 kunagwiritsidwa ntchito. Gwero la pampu ndi 1064nm wavelength, ma module awiri a 6000W curved array bar mu series semiconductor tandem pumping. Mphamvu yotulutsa ndi 0-250mJ yokhala ndi pulse width ya pafupifupi 10ns ndi frequency yolemera ya 20Hz. Pali cavity yopindika, ndipo laser ya wavelength ya 1.57μm imatulutsidwa pambuyo pa tandem KTP nonlinear crystal.
Chithunzi 3Chithunzi chojambulidwa cha laser ya pulsed wavelength ya 1.57um
Chithunzi 4: 1.57um wavelength pulsed laser sampulo zipangizo
Chithunzi 5:1.57μm yotulutsa
Chithunzi 6:Kugwira ntchito bwino kwa gwero la pampu
Kusintha muyeso wa mphamvu ya laser kuti muyese mphamvu yotulutsa ya mitundu iwiri ya mafunde motsatana. Malinga ndi graph yomwe ili pansipa, mphamvu yobwezeretsanso inali yapakati pa 20Hz ndi nthawi yogwira ntchito ya mphindi imodzi. Pakati pawo, mphamvu yopangidwa ndi laser ya 1.57um wavelenth imakhala ndi kusintha kotsatizana ndi ubale wa mphamvu ya gwero la pampu ya mafunde ya 1064nm. Pamene mphamvu ya gwero la pampu ili yofanana ndi 220mJ, mphamvu yotulutsa ya laser ya mafunde ya 1.57um imatha kufika 80mJ, ndi kuchuluka kwa kusintha kufika pa 35%. Popeza kuwala kwa chizindikiro cha OPO kumapangidwa pogwiritsa ntchito mphamvu inayake ya kuwala kwa mafunde oyambira, mtengo wake wa mafunde ndi wapamwamba kuposa mtengo wa mafunde oyambira a 1064 nm, ndipo mphamvu yake yotulutsa imawonjezeka mwachangu mphamvu yotulutsa ikapitirira mtengo wa OPO. Chiyanjano pakati pa mphamvu yotulutsa ya OPO ndi magwiridwe antchito ndi mphamvu yotulutsa kuwala kwa ma frequency frequency chikuwonetsedwa pachithunzichi, pomwe zitha kuwoneka kuti mphamvu yosinthira ya OPO ikhoza kufika pa 35%.
Pomaliza, mphamvu yotulutsa ya laser ya 1.57μm yokhala ndi wavelength yoposa 80mJ ndi m'lifupi mwa laser ya 8.5ns ikhoza kukwaniritsidwa. Kusiyana kwa ngodya ya laser yotuluka kudzera mu laser beam expander ndi 0.3mrad. Kuyerekeza ndi kusanthula kukuwonetsa kuti kuthekera koyezera mtunda kwa pulsed laser rangefinder pogwiritsa ntchito laser iyi kumatha kupitirira 30km.
| Kutalika kwa mafunde | 1570±5nm |
| Kubwerezabwereza Kawirikawiri | 20Hz |
| Ngodya yobalalitsira ya laser (kukula kwa denga) | 0.3-0.6mrad |
| Kukula kwa Kugunda | 8.5ns |
| Mphamvu ya Kugunda | 80mJ |
| Maola Ogwira Ntchito Osalekeza | Mphindi 5 |
| Kulemera | ≤1.2kg |
| Kutentha kwa Ntchito | -40℃~65℃ |
| Kutentha Kosungirako | -50℃~65℃ |
Kuwonjezera pa kukonza ndalama zake zofufuza ndi chitukuko cha ukadaulo, kulimbitsa ntchito yomanga gulu la R&D ndikuwongolera njira zatsopano zofufuzira ndi chitukuko cha ukadaulo, Lumispot Tech imagwirizananso ndi mabungwe ofufuza akunja mu kafukufuku wamakampani, mayunivesite, ndipo yakhazikitsa ubale wabwino ndi akatswiri otchuka m'makampani. Ukadaulo wofunikira ndi zigawo zazikulu zapangidwa paokha, zigawo zonse zazikulu zapangidwa ndikupangidwa paokha, ndipo zida zonse zapangidwa m'malo osiyanasiyana. Bright Source Laser ikupititsa patsogolo liwiro la chitukuko cha ukadaulo ndi zatsopano, ndipo ipitiliza kuyambitsa ma module otsika mtengo komanso odalirika a laser yachitetezo cha maso a anthu kuti akwaniritse zosowa zamsika.
Nthawi yotumizira: Juni-21-2023