Yakakosha kuita hunhu paramita yelaser system

1. Wavelength (chikamu: nm kusvika μm)

Thelaser wavelengthinomiririra wavelength ye electromagnetic wave inotakurwa nelaser. Kuenzaniswa nemamwe marudzi echiedza, chinhu chakakosha chelaserndeyekuti iyo monochromatic, zvinoreva kuti wavelength yayo yakachena kwazvo uye ine imwe chete yakanyatsotsanangurwa frequency.

Musiyano pakati peakasiyana wavelengths ye laser:

Iyo wavelength ye red laser kazhinji iri pakati pe630nm-680nm, uye mwenje unoburitswa wakatsvuka, uye zvakare ndiyo inonyanya kuzivikanwa laser (inonyanya kushandiswa mumunda wekudyisa mwenje wekurapa, nezvimwewo);

Iyo yavelength yegreen laser inowanzoita 532nm, (inonyanya kushandiswa mumunda welaser inotangira, nezvimwewo);

Blue Laser wavelength kazhinji iri pakati pe400nm-500nm (inonyanya kushandiswa pakuvhiya laser);

Uv laser pakati pe350nm-400nm (inonyanya kushandiswa mubiomedicine);

Infrared laser ndiyo inonyanya kukosha, zvinoenderana newavelength renji uye ndima yekushandisa, infrared laser wavelength inowanzo kuwanikwa muhuwandu hwe700nm-1mm. Iyo infrared bhendi inogona kukamurwazve kuita matatu mabhendi: pedyo infrared (NIR), yepakati infrared (MIR) uye kure infrared (FIR). Iyo iri padyo-infrared wavelength renji ingangoita 750nm-1400nm, iyo inoshandiswa zvakanyanya mu optical fiber kutaurirana, biomedical imaging uye infrared husiku hwekuona michina.

2. Simba uye simba (chikamu: W kana J)

Laser simbarinoshandiswa kutsanangura simba rekuona rinobuda reinoenderera mberi wave (CW) laser kana avhareji simba re pulsed laser. Pamusoro pezvo, ma pulsed lasers anoratidzirwa nenyaya yekuti simba ravo rekupuruzira rinoenderana neavhareji simba uye inversely proportional kune yekudzokorora mwero wekupuruzira, uye lasers ane simba rakakwirira uye simba anowanzo kuburitsa kupisa kwakawanda.

Mazhinji matanda emalaser ane Gaussian danda mbiri, saka irradiance uye flux zviri zviviri zvakakwirira pane optical axis yelaser uye inodzikira sezvo kutsauka kubva kune optical axis kunowedzera. Mamwe ma lasers ane flat-topped danda profiles ayo, kusiyana neGaussian matanda, ane inogara irradiance mbiri pachikamu chemuchinjiko welaser beam uye nekukurumidza kudzikira mukusimba. Naizvozvo, flat-top lasers haina peak irradiance. Simba repamusoro-soro regomba reGaussian rakapetwa kaviri redanda rakati sandara rine avhareji yesimba rimwe chete.

3. Pulse duration (chikamu: fs kusvika ms)

Iyo laser pulse duration (kureva pulse width) ndiyo nguva inotora kuti laser isvike hafu yehukuru hwemagetsi emagetsi (FWHM).

 

4. Kudzokorora mwero (chikamu: Hz kusvika MHz)

Chiyero chekudzokorora kweapulsed laser(kureva kudzokororwa kwemhepo) inotsanangura huwandu hwemapurusi anoburitswa pasekondi imwe neimwe, ndiko kuti, kudzokororwa kwekufamba kwenguva. Chiyero chekudzokorora chinopesana nemhepo yekupuruzira uye yakaenzana neavhareji simba. Kunyangwe chiyero chekudzokorora chinowanzoenderana neiyo laser kuwana yepakati, muzviitiko zvakawanda, mwero wekudzokorora unogona kuchinjwa. Yepamusoro yekudzokorora mwero inokonzeresa ipfupi yekudziya yekuzorora nguva yepasi uye yekupedzisira kutarisa kweiyo laser optical element, iyo inozotungamira nekukurumidza kupisa kwezvinhu.

5. Divergence (yakajairika unit: mrad)

Kunyangwe matanda e-laser achiwanzo fungwa seanopindirana, anogara aine humwe huwandu hwekusiyana, hunotsanangura mwero wekuti danda rinotsauka pamusoro pechinhambwe chinowedzera kubva muchiuno chelaser beam nekuda kwekusiyana. Mumashandisirwo ane marefu ekushanda madaro, senge liDAR masisitimu, uko zvinhu zvinogona kunge zviri mazana emamita kure nelaser system, kusiyana kunove dambudziko rakakosha.

6. Saizi yenzvimbo (chikamu: μm)

Saizi yenzvimbo yeyakatarisana nelaser beam inotsanangura dhayamita yedanda padanho rekutarisa lens system. Mune akawanda maapplication, akadai sekugadzirisa zvinhu uye kuvhiyiwa kwekurapa, chinangwa ndechekudzikisa saizi yemavara. Izvi zvinowedzera kuwanda kwesimba uye zvinobvumira kugadzirwa kweakanyanya kunaka-grained maficha. Aspherical lenses anowanzo shandiswa pachinzvimbo chechinyakare spherical lenzi kudzikisa spherical aberration uye kugadzira diki yefocal spot size.

7. Chinhambwe chekushanda (chikamu: μm kusvika m)

Chinhambwe chekushanda chelaser system chinowanzotsanangurwa sechinhambwe chemuviri kubva kune yekupedzisira optical element (kazhinji inotarisisa lens) kune chinhu kana pamusoro painotariswa nelaser. Mamwe maapplication, akadai sema lasers ekurapa, anowanzo tsvaga kudzikisira chinhambwe chekushanda, nepo zvimwe, senge kure kure kunzwa, kazhinji vanovavarira kukwirisa daro rekushanda.