Pulse frequency control ye laser pulse control tekinoroji

Pulse frequency control yeLaser pulse control tekinoroji

1. Pfungwa yePulse frequency, laser pulse Rate (Pulse Repetition Rate) inoreva nhamba yelaser pulses inoburitswa panguva yeyuniti, kazhinji muHertz (Hz). High frequency pulses inokodzera kukwirisa kudzokorora chiyero chekushandisa, nepo yakaderera frequency pulses yakakodzera kune yakakwira simba single pulse mabasa.

2. Ukama huri pakati pesimba, pulse width uye frequency Pamberi pelaser frequency control, hukama pakati pesimba, pulse width uye frequency inofanira kutanga yatsanangurwa. Pane kupindirana kwakaoma pakati pelaser simba, frequency uye pulse wide, uye kugadzirisa imwe yemaparamita kazhinji kunoda kufunga nezve mamwe maviri ma paramita kukwirisa mashandiro ekushandisa.

3. Yakajairika pulse frequency control nzira

a. External control mode inoremedza frequency chiratidzo kunze kwesimba rekupa, uye inogadzirisa iyo laser pulse frequency nekudzora frequency uye basa kutenderera kweiyo yekurodha chiratidzo. Izvi zvinobvumira iyo inobuda pulse kuti ienderane neredhiyo chiratidzo, ichiita kuti ive yakakodzera kune maapplication anoda kunyatso kudzora.

b. Internal control mode Iyo frequency control siginecha inovakwa mudhiraivha magetsi ekupa, pasina yekuwedzera yekunze chiratidzo chekuisa. Vashandisi vanogona kusarudza pakati peyakagadziriswa yakavakirwa-mukati frequency kana inogadziriswa yemukati kudzora frequency kuitira kuchinjika kukuru.

c. Kugadzirisa urefu hwe resonator kanaelectro-optical modulatorIyo frequency maitiro eiyo laser inogona kuchinjwa nekugadzirisa kureba kweiyo resonator kana kushandisa electro-optical modulator. Iyi nzira ye-high-frequency regulation inowanzo shandiswa mumashandisirwo anoda yakakwirira avhareji simba uye mapfupi pulse upamhi, senge laser micromachining uye yekurapa imaging.

d. Acousto optic Modulator(AOM Modulator) chishandiso chakakosha che pulse frequency control ye laser pulse control tekinoroji.AOM Modulatorinoshandisa acousto optic effect (kureva kuti, iyo mechanic oscillation pressure yeizwi wave inoshandura iyo refractive index) kugadzirisa uye kudzora laser beam.

4. Intracavity modulation tekinoroji, ichienzaniswa neyekunze modulation, intracavity modulation inogona kunyatso gadzira yakakwira simba, peak simba.pulse laser. Aya anotevera mana akajairika intracavity modulation matekiniki:

a. Gain Shanduko nekukasira modulating pombi sosi, iyo yepakati chepakati nhamba inversion uye kuwana coefficient inokurumidza kusimbiswa, ichipfuura yakakurudzirwa radiation rate, zvichikonzera kuwedzera kwakanyanya kwemafotoni mugomba uye chizvarwa chepfupi pulse laser. Iyi nzira inonyanya kuwanda mu semiconductor lasers, iyo inogona kuburitsa pulses kubva ku nanoseconds kusvika kumakumi epicoseconds, ine kudzokorora mwero we akati wandei gigahertz, uye inoshandiswa zvakanyanya mundima ye optical communications ine yakakwirira data data rates.

Q switch (Q-switching) Q switch inodzvanyirira mhinduro yekuona nekuunza kurasikirwa kwakanyanya mugomba re laser, zvichibvumira maitiro ekupomba kuti abudise chidimbu chehuwandu hwekudzokera kure kupfuura chikumbaridzo, kuchengetedza huwandu hukuru hwesimba. Zvadaro, kurasikirwa mumhango kunokurumidza kuderedzwa (kureva kuti, kukosha kweQ kwegomba kunowedzera), uye mhinduro yemaziso inoshandurwa zvakare, kuitira kuti simba rakachengetwa ribudiswe nenzira ye-ultra-short high-intensity pulses.

c. Mode Locking inogadzira ekupedzisira-ipfupi pulses yepicosecond kana kunyange femtosecond nhanho nekudzora hukama hwechikamu pakati peakasiyana longitudinal modes mune laser cavity. Iyo mode-locking tekinoroji yakakamurwa kuita passive mode-yekuvhara uye inoshanda mode-kuvhara.

d. Cavity Dumping Nekuchengetedza simba mumafotoni mune resonator, uchishandisa yakaderera-kurasikirwa mhango girazi kuti zvinobudirira kusunga mafotoni, kuchengetedza yakaderera kurasikirwa mamiriro mumhango kwenguva yakati. Mushure meimwe rwendo rwekutenderera kutenderera, iyo pulse yakasimba "inodururwa" kunze kwegomba nekukurumidza kushandura mukati memukati memukati, senge acousto-optic modulator kana ye electro-optic shutter, uye pfupi pulse laser inoburitswa. Kuenzaniswa neQ-kuchinja, kubuda kwegomba kunogona kuchengetedza hupamhi hwepurusi yema nanoseconds akati wandei pamazinga ekudzokorora (senge akati wandei megahertz) uye inobvumira epamusoro pulse simba, kunyanya kune maapplication anoda yakakwirira yedzokororo mazinga uye mapfupi pulses. Yakasanganiswa nedzimwe nzira dzekugadzira pulse, simba rekupuruzira rinogona kuvandudzwa.

Pulse control yelaserIyo yakaoma uye yakakosha maitiro, ayo anosanganisira pulse wide control, pulse frequency control uye akawanda modulation maitiro. Kuburikidza nekusarudzwa kwakanaka uye kushandiswa kweidzi nzira, iyo laser performance inogona kunyatsogadziriswa kuti isangane nezvinodiwa zveakasiyana mashandisirwo mamiriro. Mune ramangwana, nekuenderera mberi kwekubuda kwezvinhu zvitsva uye matekinoroji matsva, tekinoroji yekudzora pulse ye lasers ichaunza mamwe mabudiro, uye kusimudzira kusimudziraLaser tekinorojimugwara repamusoro nemazvo uye kushandisa kwakafara.