Mayelana ne-MOPA

I-MOPA (i-Master Oscillator Power Amplifier) ​​iyisakhiwo se-laser esithuthukisa ukusebenza kokukhipha ngokuhlukanisa umthombo wembewu (i-master oscillator) esigabeni sokukhulisa amandla. Umqondo oyinhloko uhilela ukukhiqiza isignali ye-seed pulse yekhwalithi ephezulu nge-master oscillator (MO), ekhuliswa amandla yi-power amplifier (PA), ekugcineni iletha ama-laser pulses anamandla aphezulu, asezingeni eliphezulu, kanye namapharamitha alawulwayo. Lesi sakhiwo sisetshenziswa kabanzi ekucubungulweni kwezimboni, ocwaningweni lwesayensi, kanye nezicelo zezokwelapha.

1.Izinzuzo Eziyinhloko Zokukhulisa i-MOPA

①Amapharamitha Aguquguqukayo Nalawulekayo:

- Ububanzi bePulse obulungisekayo ngokuzimela:

Ububanzi be-pulse ye-seed pulse bungalungiswa ngokuzimela kwesigaba se-amplifier, ngokuvamile kusukela ku-1 ns kuya ku-200 ns.

- Izinga Lokuphindaphinda Elilungisekayo:

Isekela amazinga ahlukahlukene okuphindaphinda kwe-pulse, kusukela kuma-pulse asezingeni elilodwa kuya kuma-frequency aphezulu e-MHz, ukuze kuhlangatshezwane nezidingo ezahlukene zokucubungula (isb., ukumakwa ngesivinini esikhulu kanye nokuqoshwa okujulile).

②Ikhwalithi Ephakeme Yomsebe:
Izici zomthombo wembewu ezinomsindo ophansi ziyagcinwa ngemva kokwandiswa, ziletha ikhwalithi yomsebe elinganiselwe eduze kokuphambuka (M² < 1.3), efaneleka ekusetshenzisweni ngokunemba.

③Amandla Okushaya Okuphezulu Nokuzinza:
Ngokukhuliswa kwezigaba eziningi, amandla e-single-pulse angafinyelela ezingeni le-millijoule ngokuguquguquka okuncane kwamandla (<1%), okulungele ukusetshenziswa kwezimboni okunembe kakhulu.

④Amandla Okucubungula Okubandayo:
Ngobubanzi obufushane be-pulse (isb., ku-nanosecond range), imiphumela yokushisa ezintweni ingancishiswa, okuvumela ukucutshungulwa kahle kwezinto ezibuthakathaka njengengilazi kanye ne-ceramics.

2. I-Master Oscillator (MO):

I-MO ikhiqiza ama-pulse embewu anamandla aphansi kodwa alawulwa kahle. Umthombo wembewu ngokuvamile yi-laser ye-semiconductor (LD) noma i-fiber laser, ekhiqiza ama-pulse nge-modulation eqondile noma yangaphandle.

3.Isikhulisi Samandla (PA):

I-PA isebenzisa ama-amplifiers e-fiber (njenge-ytterbium-doped fiber, i-YDF) ukukhulisa ama-seed pulses ngezigaba eziningi, okwandisa kakhulu amandla e-pulse kanye namandla ajwayelekile. Umklamo we-amplifier kumele ugweme imiphumela engeyona eqondile njenge-stimulated Brillouin scattering (SBS) kanye ne-stimulated Raman scattering (SRS), ngenkathi kugcinwa ikhwalithi ephezulu ye-beam.

I-MOPA vs. Ama-Laser e-Fiber e-Q-Switched ajwayelekile