MOPA (Master Oscillator Power Amplifier) chivakwa chelaser chinosimudzira kuita kwekubuda nekuparadzanisa mbeu sosi (master oscillator) kubva padanho rekusimudzira simba. Pfungwa yepakati inosanganisira kugadzira yemhando yepamusoro yembeu pulse siginecha ine master oscillator (MO), iyo inobva yawedzerwa simba-nesimba amplifier (PA), pakupedzisira ichiburitsa yakakwirira-simba, yakakwirira-beam-mhando, uye parameter-inodzoreka laser pulses. Ichi chivakwa chinoshandiswa zvakanyanya mukugadzira maindasitiri, tsvakiridzo yesainzi, uye zvikumbiro zvekurapa.
1.Mabhenefiti Akakosha eMOPA Amplification
①Flexible uye Controllable Parameters:
- Yakazvimirira Inogadziriswa Pulse Width:
Iyo pulse yakafara yembeu pulse inogona kugadziridzwa yakazvimiririra yeamplifier nhanho, kazhinji kubva ku1 ns kusvika ku200 ns.
-Adjustable Repetition Rate:
Inotsigira huwandu hwakasiyana hwekudzokororwa kwemaperesi, kubva kupfuti imwe kusvika kuMHz-level high-frequency pulses, kusangana nemhando dzakasiyana-siyana dzekugadzirisa (semuenzaniso, kukurumidza-kumaka kumaka uye kudzika kwakadzika).
②High Beam Quality:
Iyo yakaderera-ruzha maitiro embeu sosi inochengetedzwa mushure mekukwidziridzwa, kuendesa padhuze-diffraction-yakaganhurirwa danda remhando (M² <1.3), yakakodzera kune chaiyo machining.
③High Pulse Energy uye Kugadzikana:
Nekukwidziridzwa kwematanho akawanda, simba rimwechete-pulse rinogona kusvika pachiyero che millijoule nekushanduka kwesimba shoma (<1%), yakanakira kushandiswa kwepamusoro-soro kwemaindasitiri.
④Cold Processing Kugona:
Nekupfupi kupuruzira hupamhi (semuenzaniso, mu nanosecond siyana), kupisa mhedzisiro pazvinhu zvinogona kudzikiswa, zvichigonesa kugadziridzwa kwakanaka kwezvinhu zvinoputika segirazi uye ceramics.
2. Master Oscillator (MO):
Iyo MO inogadzira yakaderera-simba asi inodzorwa mhodzi dzembeu. Mbeu sosi inowanzoita semiconductor laser (LD) kana fiber laser, ichigadzira pulses kuburikidza yakananga kana yekunze modulation.
3.Simba Amplifier (PA):
Iyo PA inoshandisa fiber amplifiers (senge ytterbium-doped fiber, YDF) kukwidziridza mhodzi dzemhodzi mumatanho akati wandei, ichiwedzera zvakanyanya pulse simba uye avhareji simba. Dhizaini yeAmplifaya inofanirwa kudzivirira zvisina tsarukano mhedzisiro senge yakasimudzwa Brillouin kuparadzira (SBS) uye inosimudzira Raman kuparadzira (SRS), uku ichichengetedza yakakwirira bhiza.
MOPA vs. Traditional Q-Switched Fiber Lasers
| Feature | MOPA Structure | Traditional Q-Switched Lasers |
| Pulse Width Adjustment | Yakazvimirira inochinjika (1–500 ns) | Yakagadziriswa (inoenderana neQ-switch, kazhinji 50-200 ns) |
| Repetition Rate | Inochinjika zvakanyanya (1 kHz–2 MHz) | Fixed kana nhete renji |
| Kuchinja-chinja | High (programmable parameters) | Low |
| Application Scenarios | Precision machining, high-frequency marking, special material processing | General cutting, marking |
Nguva yekutumira: May-15-2025