Lilemong tsa morao tjena, ts'ebeliso ea li-laser tsa pulsed fiber tšimong ea ho tšoaea laser e tsoetse pele ka potlako, eo har'a eona lits'ebetso tsa masimong a lihlahisoa tsa elektroniki tsa 3C, mechini, lijo, liphutheloana, joalo-joalo li ngata haholo.
Hajoale, mefuta ea li-laser tsa pulsed fiber tse sebelisoang ho tšoaea laser 'marakeng haholo-holo li kenyelletsa theknoloji ea Q-switched le theknoloji ea MOPA.LAser ea MOPA (Master Oscillator Power-Amplifier) e bolela sebopeho sa leseare moo sebuela-hōle le seamplifier li phalloang teng.Indastering, laser ea MOPA e bua ka laser ea "nanosecond pulse fiber" e ikhethang le e "bohlale" e entsoeng ka mohloli oa peo ea laser ea semiconductor e tsamaisoang ke maqhubu a motlakase le sehokelo sa fiber."Bohlale" ba eona bo bonahala haholo-holo ka bophara ba phallo ea pulse bo ka fetoloa ka mokhoa o ikemetseng (range 2ns-500ns), 'me maqhubu a ho pheta-pheta a ka ba holimo ho megahertz.Sebopeho sa mohloli oa peo ea Q-switched fiber laser ke ho kenya modulator ea tahlehelo ka har'a fiber oscillator cavity, e hlahisang khanya ea nanosecond pulse ka bophara bo itseng ka ho fetola nako le nako tahlehelo ea optical ka cavity.
Sebopeho sa ka hare sa laser
Phapang ea ka hare ea sebopeho pakeng tsa MOPA fiber laser le Q-switched fiber laser haholo-holo e ka har'a mekhoa e fapaneng ea moloko oa lets'oao la leseli la pulse peo.Letšoao la optical la MOPA fiber laser pulse seed optical le hlahisoa ke semiconductor laser chip ea motlakase, ke hore, lets'oao la optical le hlahisoang ke lets'oao la motlakase, ka hona le matla haholo bakeng sa ho hlahisa liparamente tse fapaneng tsa pulse (bophara ba pulse, ho pheta-pheta khafetsa). , pulse waveform le matla, joalo-joalo) Ho tenyetseha.Letšoao la optical la pulse peo ea laser ea Q-switched fiber e hlahisa tlhahiso ea leseli la pulsed ka ho eketsa nako le nako kapa ho fokotsa tahlehelo ea optical sebakeng sa resonant, ka sebopeho se bonolo le phaello ea theko.Leha ho le joalo, ka lebaka la tšusumetso ea lisebelisoa tsa Q-switching, li-parameter tsa pulse li na le lithibelo tse itseng.
Li-parameter tsa optical tse hlahisoang
MOPA faeba laser output pulse wide e ka fetoha ka tsela e ikemetseng.Bophara ba pulse ea MOPA faeba laser bo na le tunability efe kapa efe (range 2ns ~ 500 ns).Ho fokotseha ha bophara ba pulse, ho fokotsa sebaka se amehileng ke mocheso, le ho nepahala ho phahameng ho sebetsa ho ka fumanoa.Bophara ba pulse ea Q-switched fiber laser ha bo fetohe, 'me bophara ba pulse hangata bo lula bo le teng ka boleng bo itseng bo tsitsitseng pakeng tsa 80 ns le 140 ns.MOPA fiber laser e na le mefuta e mengata ea ho pheta-pheta khafetsa.Maqhubu a maqhubu a laser ea MOPA a ka fihla ho phallo e phahameng ea maqhubu a MHz.Maqhubu a ho pheta-pheta a phahameng a bolela ts'ebetso e phahameng ea ts'ebetso, 'me MOPA e ntse e ka boloka litšobotsi tse phahameng tsa matla tlas'a maemo a phahameng a ho pheta-pheta khafetsa.Q-switched fiber laser e lekanyelitsoe ke maemo a ho sebetsa a Q switch, kahoo palo ea maqhubu a tlhahiso e moqotetsane, 'me maqhubu a phahameng a ka fihla ~ 100 kHz feela.
Boemo ba kopo
MOPA fiber laser e na le mefuta e mengata ea phetoho ea parameter.Ka hona, ntle le ho koahela lits'ebetso tsa li-laser tsa nanosecond tse tloaelehileng, e ka sebelisa bophara ba eona bo ikhethang bo moqotetsane, maqhubu a phahameng a ho pheta-pheta, le matla a phahameng a tlhoro ho fihlela lits'ebetso tse ikhethang tsa ts'ebetso e nepahetseng.joalo ka:
1.Kopo ea ho tlosa holim'a letlapa la aluminium oxide
Lihlahisoa tsa kajeno tsa elektronike li ntse li fokotseha le ho feta.Liselefounu tse ngata, matlapa le likhomphutha li sebelisa aluminium oxide e tšesaane ebile e bobebe joalo ka khetla ea sehlahisoa.Ha u sebelisa laser ea Q-switched ho tšoaea maemo a conductive holim'a poleiti e tšesaane ea aluminium, ho bonolo ho baka deformation ea thepa, e hlahisang "convex hulls" ka morao, e amang ka ho toba botle ba ponahalo.Ts'ebeliso ea liparamente tse nyane tsa laser ea MOPA li ka etsa hore thepa e se ke ea senyeha habonolo, 'me moriti o bobebe le ho feta.Lebaka ke hobane laser ea MOPA e sebelisa paramente e nyane ea bophara ba pulse ho etsa hore laser e lule holim'a thepa e khuts'oane, 'me e na le matla a lekaneng a ho tlosa lera la anode, kahoo bakeng sa ts'ebetso ea ho hlobola anode holim'a aluminium oxide e tšesaane. poleiti, MOPA Lasers ke khetho e molemo.
2.Anodized aluminium blackening kopo
Ho sebelisa li-lasers ho tšoaea matšoao a batho ba batšo, mehlala, litemana, joalo-joalo holim'a lisebelisoa tsa aluminium tse entsoeng ka anodized, ho e-na le theknoloji e tloaelehileng ea inkjet le thekenoloji ea silika, e 'nile ea sebelisoa haholo ka likhetla tsa lihlahisoa tsa elektronike tsa digital.
Hobane laser ea MOPA pulsed fiber e na le bophara bo pharalletseng ba pulse le mefuta e mengata ea phetisetso ea phetisetso, ts'ebeliso ea bophara bo moqotetsane le liparamente tse phahameng tsa maqhubu li ka tšoaea bokaholimo ba thepa ka phello e ntšo.Metsoako e fapaneng ea liparamente le eona e ka tšoaea maemo a bohlooho a fapaneng.phello.
Ka hona, e na le khetho e eketsehileng bakeng sa litlamorao tsa botsho bo fapaneng le maikutlo a matsoho, 'me ke mohloli o ratoang oa leseli bakeng sa ho ntšoa ha aluminium ea anodized' marakeng.Ho tšoaea ho etsoa ka mekhoa e 'meli: mokhoa oa matheba le matla a fetotsoeng a matheba.Ka ho fetola matheba a matheba, litlamorao tse fapaneng tsa grayscale li ka etsisoa, 'me linepe tse ikhethileng le mesebetsi ea matsoho e etselitsoeng motho ka mong li ka tšoauoa holim'a thepa ea aluminium ea anodized.
3.Mobala oa laser tšoaea
Ts'ebelisong ea 'mala oa tšepe e sa hloekang, laser e hlokahala ho sebetsa ka bophara bo nyane le bo mahareng ba pulse le maqhubu a phahameng.Phetoho ea 'mala e ameha haholo ka makhetlo a mangata le matla.Phapang ea mebala ena e angoa haholo ke matla a lesela le le leng le sekhahla sa letheba la eona.Hobane bophara ba pulse le maqhubu a laser ea MOPA li khona ho feto-fetoha, ho lokisa e 'ngoe ea tsona ho ke ke ha ama liparamente tse ling.Ba sebelisana hammoho ho fihlela menyetla e fapaneng, e ke keng ea finyelloa ka laser Q-switched.Lits'ebetsong tse sebetsang, ka ho fetola bophara ba pulse, frequency, matla, lebelo, mokhoa oa ho tlatsa, sebaka sa ho tlatsa le li-parameter tse ling, ho lumella le ho kopanya liparamente tse fapaneng, u ka tšoaea litlamorao tsa 'mala, mebala e ruileng le e bobebe.Litafoleng tsa tšepe tse sa hloekang, lisebelisoa tsa bongaka le mesebetsi ea matsoho, li-logos tse ntle kapa lipaterone li ka tšoauoa ho bapala phello e ntle ea mokhabiso.
Ka kakaretso, bophara ba pulse le frequency ea MOPA fiber laser li khona ho fetoha ka mokhoa o ikemetseng, 'me mefuta e fapaneng ea parameter e kholo, kahoo ts'ebetso e ntle, phello ea mocheso e tlase,' me e na le melemo e ikhethang ho tšoaea lakane ea aluminium oxide, aluminium anodized. botsho, le mmala wa tshepe e sa hlwekang.Lemoha phello eo Q-switched fiber laser e ke keng ea e fihlela Q-switched fiber laser e tšoauoa ka matla a matla a ho tšoaea, a nang le melemo e itseng ts'ebetsong e tebileng ea tšepe ea tšepe, empa phello ea ho tšoaea e batla e le mpe.Lits'ebetsong tse tloaelehileng tsa ho tšoaea, li-laser tsa MOPA pulsed fiber li bapisoa le li-laser tsa fiber tse fetotsoeng tsa Q, 'me likarolo tsa tsona tsa mantlha li bonts'oa tafoleng e latelang.Basebelisi ba ka khetha laser e nepahetseng ho latela litlhoko tsa 'nete tsa lisebelisoa tsa ho tšoaea le litlamorao.
MOPA fiber laser pulse bophara le frequency li ka fetoloa ka boithaopo, 'me mefuta ea paramethara e kholo, ka hona ts'ebetso e nepahetse, phello ea mocheso e tlase,' me e na le melemo e ikhethang ho tšoaea aluminium oxide sheet, anodized aluminium blackening, mebala ea tšepe e sa hloekang, le tjheseletsa ya tshepe ya lakane.Phello eo Q-switched fiber laser e ke keng ea e finyella.Q-switched fiber laser e tšoauoa ka matla a matla a ho tšoaea, a nang le melemo e itseng ts'ebetsong e tebileng ea tšepe ea tšepe, empa phello ea ho tšoaea e batla e le mpe.
Ka kakaretso, li-laser tsa MOPA faeba li ka batla li nka sebaka sa lasers ea Q-switched fiber ho lits'ebetso tsa laser tse phahameng tsa ho tšoaea le ho cheselletsa.Nakong e tlang, nts'etsopele ea li-laser tsa MOPA fiber e tla nka bophara bo fokolang le maqhubu a phahameng joalo ka tataiso, 'me ka nako e ts'oanang e hatele matla a phahameng le matla a phahameng, e tsoele pele ho fihlela litlhoko tse ncha tsa ts'ebetso e ntle ea lisebelisoa tsa laser,' me e tsoele pele ntshetsa pele joalo ka laser derusting le lidar.Le libaka tse ling tse ncha tsa kopo.
Nako ea poso: Jul-18-2021
