Muhimman sigogi na gyaran laser a cikin tsarin aiki

1. Tsawon Raƙumi (naúrar: nm zuwa μm)

TheTsawon Laseryana wakiltar tsawon raƙuman lantarki da laser ke ɗauka. Idan aka kwatanta da sauran nau'ikan haske, muhimmin fasali nalasershine cewa yana da monochromatic, wanda ke nufin cewa tsawonsa yana da tsarki sosai kuma yana da mita ɗaya kawai da aka ayyana sosai.

Bambanci tsakanin nau'ikan tsayi daban-daban na laser:

Tsawon tsawon laser ja gabaɗaya yana tsakanin 630nm-680nm, kuma hasken da ke fitowa ja ne, kuma shine laser da aka fi amfani da shi (galibi ana amfani da shi a fannin hasken ciyar da likitoci, da sauransu);

Tsawon tsawon laser kore gabaɗaya yana da kusan 532nm, (galibi ana amfani da shi a fannin kewayon laser, da sauransu);

Tsawon laser mai launin shuɗi gabaɗaya yana tsakanin 400nm-500nm (galibi ana amfani da shi don tiyatar laser);

Laser na UV tsakanin 350nm-400nm (galibi ana amfani da shi a fannin likitancin halittu);

Laser ɗin Infrared shine mafi mahimmanci, bisa ga kewayon tsawon tsayi da filin aikace-aikacen, tsawon hasken infrared laser gabaɗaya yana cikin kewayon 700nm-1mm. Za a iya ƙara raba ɓangaren infrared zuwa ƙananan raka'a uku: kusa da infrared (NIR), tsakiyar infrared (MIR) da nesa da infrared (FIR). Matsakaicin tsawon hasken infrared yana da kusan 750nm-1400nm, wanda ake amfani da shi sosai a cikin sadarwa ta fiber optic, hoton biomedical da kayan aikin hangen nesa na infrared dare.

2. Ƙarfi da kuzari (naúrar: W ko J)

Ƙarfin Laserana amfani da shi don bayyana fitowar wutar lantarki ta na'urar laser mai ci gaba da wave (CW) ko matsakaicin ƙarfin laser mai pulsed. Bugu da ƙari, ana siffanta na'urorin laser masu pulsed ta hanyar gaskiyar cewa ƙarfin bugunsu yana daidai da matsakaicin ƙarfi kuma yana daidai da ƙimar maimaita bugun, kuma na'urorin laser masu ƙarfi da kuzari galibi suna samar da ƙarin zafi na sharar gida.

Yawancin hasken laser suna da siffar hasken Gaussian, don haka hasken haske da kwararar haske suna da girma a kan hasken laser kuma suna raguwa yayin da karkacewar daga hasken haske ke ƙaruwa. Sauran hasken laser suna da siffar hasken da ke saman lebur wanda, ba kamar hasken Gaussian ba, suna da hasken haske akai-akai a kan sashin giciye na hasken laser da raguwar ƙarfi cikin sauri. Saboda haka, hasken laser mai faɗi ba shi da hasken haske mai tsayi. Ƙarfin hasken Gaussian ya ninka hasken da ke saman lebur tare da matsakaicin ƙarfi iri ɗaya.

3. Tsawon bugun jini (naúrar: fs zuwa ms)

Tsawon lokacin bugun laser (watau faɗin bugun jini) shine lokacin da laser ɗin zai ɗauka kafin ya kai rabin ƙarfin gani mafi girma (FWHM).

 

4. Yawan maimaitawa (naúra: Hz zuwa MHz)

Yawan maimaitawa na alaser mai bugun jini(watau saurin maimaita bugun jini) yana bayyana adadin bugun da ake fitarwa a kowace daƙiƙa, wato, bambancin tazara tsakanin bugun jini na jerin lokaci. Yawan maimaitawar yana daidai da ƙarfin bugun jini kuma yana daidai da matsakaicin ƙarfin. Kodayake yawan maimaitawar yawanci ya dogara ne akan matsakaicin ƙarfin laser, a lokuta da yawa, ana iya canza saurin maimaitawar. Yawan maimaitawar yana haifar da ɗan gajeren lokacin hutawa na zafi ga saman da kuma mayar da hankali na ƙarshe na sinadarin laser, wanda hakan ke haifar da dumama kayan cikin sauri.

5. Bambanci (raka'a ta yau da kullun: mrad)

Duk da cewa galibi ana ɗaukar hasken laser a matsayin wanda ke haɗuwa, koyaushe suna ɗauke da wani adadin bambanci, wanda ke bayyana girman yadda hasken ke bambantawa a kan nisan da ke tsakanin kugu da hasken laser saboda bambancin haske. A cikin aikace-aikacen da ke da nisan aiki mai tsawo, kamar tsarin liDAR, inda abubuwa na iya zama ɗaruruwan mita daga tsarin laser, bambancin haske ya zama matsala mai mahimmanci.

6. Girman tabo (naúra: μm)

Girman tabo na hasken laser mai mayar da hankali yana bayyana diamita na hasken a wurin da aka fi mayar da hankali na tsarin ruwan tabarau. A aikace-aikace da yawa, kamar sarrafa kayan aiki da tiyatar likita, manufar ita ce rage girman tabo. Wannan yana ƙara yawan ƙarfi kuma yana ba da damar ƙirƙirar siffofi masu laushi. Sau da yawa ana amfani da ruwan tabarau na Aspheric maimakon ruwan tabarau na gargajiya don rage canje-canje na siffar ƙwallo da kuma samar da ƙaramin girman tabo mai mayar da hankali.

7. Nisa ta aiki (naúra: μm zuwa m)

Nisa tsakanin tsarin laser da na'urar hangen nesa (mafi yawanci ruwan tabarau mai mayar da hankali) ana bayyana shi a matsayin nisan da ke tsakanin na'urar hangen nesa ta ƙarshe (yawanci ruwan tabarau mai mayar da hankali) zuwa ga abin ko saman da laser ɗin ke mayar da hankali a kai. Wasu aikace-aikace, kamar laser na likitanci, galibi suna neman rage nisan aiki, yayin da wasu, kamar na'urar hangen nesa ta nesa, galibi suna nufin haɓaka nisan aikinsu.