Laser ea matla a phahameng a pulsedka sebopeho sa MOPA se nang le fiber eohle
Mefuta e meholo ea meralo ea li-laser tsa fiber e kenyelletsa resonator e le 'ngoe, motsoako oa borali le libopeho tsa master oscillating power amplifier (MOPA). Har'a tsona, sebopeho sa MOPA se fetohile se seng sa libaka tsa morao-rao tsa lipatlisiso ka lebaka la bokhoni ba sona ba ho fihlela ts'ebetso e phahameng.laser ea pulsedtlhahiso e nang le bophara bo feto-fetohang ba pulse le frequency ea ho pheta-pheta (e bitsoang bophara ba pulse le frequency ea ho pheta-pheta).
Molao-motheo oa ts'ebetso oa laser ea MOPA ke o latelang: Oscillator e kholo (MO) ke mohloli oa peo o sebetsang hantle haholo.laser ea semiconductore hlahisang leseli la lets'oao la peo le li-parameter tse feto-fetohang ka ho feto-fetoha ha molumo ka kotloloho. The Field Programmable gate Array (FPGA) e ka sehloohong ea taolo e hlahisa lipontšo tsa hona joale tsa pulse tse nang le li-parameter tse feto-fetohang, tse laoloang ke potoloho ea koloi ho sebetsa mohloli oa peo le ho phethela phetoho ea pele ea leseli la peo. Kamora ho amohela litaelo tsa taolo ho tsoa ho boto e kholo ea taolo ea FPGA, potoloho ea mohloli oa pompo e qala mohloli oa pompo ho hlahisa leseli la pompo. Ka mor'a hore leseli la peō le leseli la pompo li kopanngoe ke ho arola beam, li kenngoa ka ho latellana ho Yb3 + -doped double-clad optical fiber (YDDCF) mochineng oa mekhahlelo e 'meli oa optical amplification. Nakong ea ts'ebetso ena, li-ion tsa Yb3+ li monya matla a lebone la pompo ho theha kabo ea phetoho ea baahi. Ka mor'a moo, ho ipapisitsoe le melao-motheo ea ho phahamisa maqhubu a maqhubu le tlhahiso e tsosolositsoeng, leseli la lets'oao la peo le fumana phaello e phahameng ea matla ho module ea mekhahlelo e 'meli ea optical amplification, e qetellang e hlahisa matla a phahameng.laser ea nanosecond pulsed. Ka lebaka la keketseho ea matla a holimo, lets'oao le matlafalitsoeng la pulse le ka ba le khatello ea bophara ba pulse ka lebaka la phello ea ho hola. Lits'ebetsong tse sebetsang, meaho ea methati e mengata ea amplification hangata e amoheloa ho ntlafatsa matla a tlhahiso le ho sebetsa hantle.
Sistimi ea potoloho ea laser ea MOPA e entsoe ka boto e kholo ea taolo ea FPGA, mohloli oa pompo, mohloli oa peo, boto ea potoloho ea mokhanni, amplifier, joalo-joalo Boto e ka sehloohong ea taolo ea FPGA e khanna mohloli oa peo ho hlahisa li-pulses tse bobebe tsa peo e tala ea MW-level e nang le li-parameter tse feto-fetohang ka ho hlahisa mats'oao a motlakase a nang le maqhubu a feto-fetohang, pulse200005 900kHz). Letšoao lena le kenngoa ka sekhetho ho module ea methati e 'meli ea optical amplifier e entsoeng ka preamplifier le amplifier e kholo, 'me qetellong e hlahisa laser e nang le matla a phahameng a pulse short-pulse laser ka optical isolator e nang le ts'ebetso ea collimation. Mohloli oa peo o na le mochine o ka hare oa photodetector ho shebella matla a tsoang ka nako ea sebele le ho o khutlisetsa ho boto e kholo ea taolo ea FPGA. Boto e kholo ea taolo e laola lipotoloho tsa pompo ea 1 le 2 ho fihlela ts'ebetso ea ho bula le ho koala ha mehloli ea pompo 1, 2 le 3.photodetectore hloleha ho lemoha khanya ea leseli, boto e kholo ea taolo e tla koala mohloli oa pompo ho thibela tšenyo ea YDDCF le lisebelisoa tsa optical ka lebaka la khaello ea leseli la peo.
Sistimi ea laser optical path ea MOPA e nka sebopeho sa fiber eohle mme e na le mojule oa mantlha oa oscillation le mojule oa mekhahlelo e 'meli. Mojule o ka sehloohong oa oscillation o nka semiconductor laser diode (LD) e nang le maqhubu a bohareng a 1064nm, bolelele ba 3nm, le matla a mangata a tsoelang pele a 400mW e le mohloli oa peo, 'me o e kopanya le fiber Bragg grating (FBG) e nang le reflectivity ea 99.9. ho theha tsamaiso ya kgetho ya wavelength. Mojule oa matlafatso ea methati e 2 o amohela moralo oa pompo o ka morao, 'me YDDCF e nang le li-diameter tsa mantlha tsa 8 le 30μm li hlophisoa ka ho latellana joalo ka media oa phaello. Li-coefficients tse lumellanang tsa ho monya pompo ke 1.0 le 2.1dB/m@915nm, ka ho latellana.
Nako ea poso: Sep-17-2025