Pulse width control yelaser pulse controlteknolojia
Iyo pulse control yelaser ndeimwe yeakakosha malink mukatiLaser tekinoroji, iyo inokanganisa zvakananga kuita uye kushandiswa kwemaitiro e laser. Iri bepa rinozorongedza zvine hurongwa kudzora pulse wide control, pulse frequency control uye inoenderana modulation tekinoroji, uye kuyedza kuve nyanzvi, yakazara uye inonzwisisika.
1. Pfungwa yehupamhi hwepurusi
Iyo Pulse Width yelaser inoreva nguva yelaser pulse, inova yakakosha parameter kutsanangura nguva hunhu hwekubuda kwelaser. Kune ekupedzisira-pfupi pulse lasers (senge nanosecond, picosecond uye femtosecond lasers), iyo ipfupi kupuruzira hupamhi, iyo yepamusoro simba repamusoro, uye idiki iyo inopisa mhedzisiro, iyo inokodzera chaiyo machining kana tsvagiridzo yesainzi.
2. Zvinhu zvinokanganisa laser pulse width Iyo pulse width ye laser inobatwa nezvinhu zvakasiyana-siyana, kunyanya kusanganisira zvinotevera:
a. Hunhu hwe gain medium. Mhando dzakasiyana dzekuwana midhiya dzine yakasarudzika simba nhanho dhizaini uye fluorescence hupenyu hwese, iyo inokanganisa zvakananga chizvarwa uye pulse hupamhi hwelaser pulse. Semuenzaniso, solid-state lasers, Nd:YAG makristasi uye Ti:Sapphire makristasi akajairika solid-state laser media. Gasi lasers, senge carbon dioxide (CO₂) lasers uye helium-neon (HeNe) lasers, kazhinji inogadzira mapurusi akareba nekuda kwechimiro chavo chemolecular uye mafaro ehurumende; Semiconductor lasers, nekudzora iyo inotakura recombination nguva, inogona kuwana pulse widths kubva nanoseconds kusvika picoseconds.
Dhizaini ye laser cavity ine mhedzisiro yakakosha pahupamhi hwekupuruzira, kusanganisira: kureba kwegomba, kureba kwegomba re laser rinotarisa nguva inodiwa kuti mwenje ufambe kamwechete uye zvakare mugomba, mhango refu inotungamira kune yakareba pulse hupamhi, nepo ipfupi mhango inokodzera chizvarwa chekupedzisira-pfupi pulses; Reflectance: A reflector ine high reflectance inogona kuwedzera photon density mugomba, nekudaro ichivandudza mhedzisiro yekuwana, asi yakanyanyisa kutaridzika inogona kuwedzera kurasikirwa mugomba uye kukanganisa kugadzikana kwepulse wide; Nzvimbo yekuwana svikiro uye nzvimbo yekuwana svikiro mumhango ichakanganisawo nguva yekudyidzana pakati pephoton uye yepakati yekuwana, uye zvino inokanganisa pulse width.
c. Q-switching tekinoroji uye mode-yekuvhara tekinoroji inzira mbiri dzakakosha yekuziva pulse laser kubuda uye pulse wide regulation.
d. Pombi sosi uye pombi modhi Kugadzikana kwesimba kwepombi sosi uye kusarudzwa kwepombi modhi inewo kukosha kwakakosha pahupamhi hwekupuruzira.
3. Yakajairika pulse upamhi kudzora nzira
a. Shandura iyo yekushanda modhi yelaser: iyo yekushanda modhi yelaser inokanganisa zvakananga kupuruzira kwayo. Iyo pulse hupamhi inogona kudzorwa nekugadzirisa zvinotevera parameters: kuwanda uye kusimba kwepombi sosi, iyo simba yekuisa yepombi sosi, uye dhigirii rechikamu chehuwandu inversion mune yekuwana medium; Iyo reflectivity yeinobuda lens inoshandura kugadzirisa kwemhinduro mu resonator, nokudaro inokanganisa maitiro ekugadzira pulse.
b. Kudzora pulse chimiro: zvisina kunanga gadzirisa pulse hupamhi nekushandura chimiro che laser pulse.
c. Ikozvino modulation: Nekushandura inobuda ikozvino yemagetsi ekugadzirisa kugoverwa kwemagetsi emagetsi mazinga mu laser medium, uyezve shandura pulse upamhi. Iyi nzira ine kukurumidza kupindura kumhanya uye inokodzera mamiriro ekushandisa anoda kukurumidza kugadzirisa.
d. Chinja modulation: nekudzora shanduko yelaser kugadzirisa iyo pulse upamhi.
e. Kudzora tembiricha: shanduko yetembiricha ichakanganisa iyo erekitironi simba nhanho chimiro chelaser, nekudaro ichikanganisa pulse upamhi.
f. Shandisa modulation tekinoroji: Modulation tekinoroji inzira inoshanda yekudzora nemazvo upamhi hwekupuruzira.
Laser modulationtekinoroji tekinoroji inoshandisa laser semutakuri uye inotakura ruzivo pairi. Zvinoenderana nehukama neiyo laser inogona kukamurwa kuita yemukati modulation uye yekunze modulation. Yemukati modulation inoreva modulation modhi umo iyo modulated siginecha inoremerwa mukuita kwelaser oscillation kushandura laser oscillation paramita uye nekudaro shandura iyo laser inobuda maitiro. Yekunze modulation inoreva modulation modulation umo iyo modulation siginecha inowedzerwa mushure mekunge laser yaumbwa, uye inobuda laser zvivakwa zvinoshandurwa pasina kushandura oscillation paramita yelaser.
Modulation tekinoroji inogonawo kuverengerwa zvinoenderana neanotakura modulation mafomu, anosanganisira analog modulation, pulse modulation, digital modulation (pulse code modulation); Zvinoenderana neiyo modulation paramita, yakakamurwa kuita intensity modulation uye phase modulation.
Kusimba modulator: The pulse width inodzorwa nekugadzirisa shanduko ye laser light intensity.
Phase modulator: Iyo pulse width inogadziriswa nekushandura chikamu chechiedza chechiedza.
Phase-yakiyiwa amplifier: Kuburikidza nechikamu-yakakiyiwa amplifier modulation, iyo laser pulse hupamhi inogona kunyatsogadziriswa.
Nguva yekutumira: Mar-24-2025