MOPA (Master Oscillator Power Amplifier) ke meralo ea laser e ntlafatsang ts'ebetso ea tlhahiso ka ho arola mohloli oa peo (master oscillator) ho tloha sethaleng sa ho holisa matla. Mohopolo oa mantlha o kenyelletsa ho hlahisa lets'oao la boleng bo holimo ba peō ka "master oscillator" (MO), eo ka nako eo e matlafatsoang ke matla a amplifier (PA), e qetellang e fana ka matla a holimo, a boleng bo holimo, le li-laser tse laoloang ke parameter. Meaho ena e sebelisoa haholo ts'ebetsong ea indasteri, lipatlisiso tsa mahlale le lits'ebetsong tsa bongaka.
1.Melemo ea Bohlokoa ea Matlafatso ea MOPA
①Liparamente tse feto-fetohang le tse laolehang:
- Bophara bo Ikemetseng ba Pulse Width:
Bophara ba pulse ea peō ea peo bo ka fetoloa ntle le sethala sa amplifier, hangata ho tloha ho 1 ns ho isa ho 200 ns.
- Sekhahla sa Pheta-pheta se Fetohang:
E ts'ehetsa mefuta e mengata e fapaneng ea sekhahla sa ho pheta-pheta, ho tloha ho motho a le mong ho ea ho MHz-level high-frequency pulses, ho finyella litlhoko tse fapaneng tsa ts'ebetso (mohlala, ho tšoaea ka lebelo le phahameng le mongolo o tebileng).
②Boleng bo Phahameng ba Beam:
Litšobotsi tse nang le lerata le tlase la mohloli oa peo li bolokoa ka mor'a ho holisoa, ho fana ka boleng bo haufi le diffraction-limited beam (M² <1.3), e loketseng bakeng sa ho sebetsa ka mokhoa o nepahetseng.
③Matla a Phahameng a Pulse le Botsitso:
Ka matlafatso ea mekhahlelo e mengata, matla a pulse a le mong a ka fihla boemong ba millijoule ka ho feto-fetoha ho fokolang ha matla (<1%), e loketseng bakeng sa lisebelisoa tse phahameng tsa indasteri.
④Cold Processing bokhoni:
Ka bophara bo bokhutšoane ba pulse (mohlala, sebakeng sa nanosecond), litlamorao tsa mocheso ho lisebelisoa li ka fokotsoa, ho nolofalletsa ts'ebetso e ntle ea lisebelisoa tse brittle joalo ka likhalase le lirafshoa.
2. Master Oscillator (MO):
MO e hlahisa matla a tlase empa e laoloa ka nepo. Mohloli oa peo hangata ke laser ea semiconductor (LD) kapa fiber laser, e hlahisang maqhubu ka mokhoa o tobileng kapa oa kantle.
3.Sehlalisa Matla (PA):
PA e sebelisa li-amplifiers tsa fiber (tse kang ytterbium-doped fiber, YDF) ho holisa limela tsa peo ka mekhahlelo e mengata, ho matlafatsa matla a ho otla le matla a tloaelehileng. Moralo oa amplifier o tlameha ho qoba litlamorao tse sa tsitsang joalo ka ho hasanya ha Brillouin (SBS) le ho hasana ha Raman (SRS), ha o ntse o boloka boleng bo holimo.
MOPA vs. Traditional Q-Switched Fiber Laser
| Sebopeho | MOPA Sebopeho | Traditional Q-Switched Lasers |
| Phetoho ea Bophara ba Pulse | E khona ho ikemela (1–500 ns) | E tsitsitse (e ipapisitse le Q-switch, hangata 50-200 ns) |
| Pheta-pheto | E feto-fetoha haholo (1 kHz–2 MHz) | Sebaka se tsitsitseng kapa se tšesaane |
| Ho tenyetseha | Holimo (li-parameter tse ka khonehang) | Tlase |
| Maemo a Kopo | Precision machining, high-frequency marking, special material processing | Ho khaola ka kakaretso, ho tšoaea |
Nako ea poso: May-15-2025