Magana don zaɓar Laser fiber-mode guda ɗaya

Magana don zaɓarSingle-yanayin fiber Laser
A aikace-aikace masu amfani, zabar yanayin da ya dace guda ɗayafiber Laseryana buƙatar tsarin auna ma'auni daban-daban don tabbatar da cewa aikin sa ya dace da takamaiman buƙatun aikace-aikacen, yanayin aiki da iyakokin kasafin kuɗi. Wannan sashe zai samar da hanyar zaɓe mai amfani bisa buƙatu.
Dabarun zaɓi dangane da yanayin aikace-aikacen
Abubuwan da ake buƙata na aiki donLaserbambanta sosai a cikin yanayin aikace-aikacen daban-daban. Mataki na farko na zaɓi shine don fayyace ainihin buƙatun aikace-aikacen.
Madaidaicin kayan aiki da masana'anta micro-nano: Irin waɗannan aikace-aikacen sun haɗa da yankan lafiya, hakowa, dicing semiconductor wafer dicing, alamar matakin micron da bugu 3D, da sauransu. Laser mai ma'aunin M² kusa da 1 (kamar <1.1) yakamata a zaɓi. Ana buƙatar ƙayyade ikon fitarwa bisa ga kauri da saurin sarrafawa. Gabaɗaya, ƙarfin da ke jere daga dubun zuwa ɗaruruwan watts na iya biyan buƙatun mafi yawan sarrafa ƙananan ƙwayoyin cuta. Dangane da tsayin raƙuman ruwa, 1064nm shine zaɓin da aka fi so don yawancin sarrafa kayan ƙarfe saboda girman ƙimar sa da ƙarancin farashi da watt na ikon Laser.
Binciken kimiyya da ma'auni mai girma: Yanayin aikace-aikacen sun haɗa da tweezers na gani, sanyi atom kimiyyar lissafi, babban spectroscopy da interferometry. Wadannan filayen yawanci suna da matsananciyar bin monochromaticity, kwanciyar hankali mitar da aikin amo na lasers. Samfura masu kunkuntar layin layi (ko da mitar guda ɗaya) da ƙaramar ƙarar ƙara ya kamata a ba da fifiko. Ya kamata a zaɓi tsayin raƙuman raƙuman raƙuman raƙuman raƙuman ruwa bisa layin rawa na takamaiman zarra ko kwayoyin halitta (misali, 780nm ana amfani da su don sanyaya rubidium atoms). Fitowar tabbatar da son zuciya yawanci yakan zama dole don gwaje-gwajen tsangwama. Bukatar wutar gabaɗaya baya girma, kuma ɗaruruwan milliwatts zuwa watts da yawa galibi suna isa.
Likita da fasahar kere-kere: Aikace-aikace sun haɗa da tiyatar ido, jiyya na fata da hoto mai kyalli. Amintaccen ido shine abin la'akari na farko, don haka ana zaɓar lasers tare da tsawon tsayin 1550nm ko 2μm, waɗanda ke cikin rukunin kare lafiyar ido. Don aikace-aikacen bincike, ana buƙatar kulawa da kwanciyar hankali; Don aikace-aikacen warkewa, yakamata a zaɓi ikon da ya dace bisa zurfin jiyya da buƙatun makamashi. Sassaucin watsawar gani shine babban fa'ida a cikin irin waɗannan aikace-aikacen.
Sadarwa da Hankali: Sensing fiber optic, liDAR da sadarwar gani na sarari aikace-aikace ne na yau da kullun. Waɗannan al'amuran suna buƙatarLaserdon samun babban abin dogaro, daidaita yanayin muhalli da kwanciyar hankali na dogon lokaci. Ƙungiyar 1550nm ta zama zaɓin da aka fi so saboda mafi ƙarancin watsawa a cikin filaye na gani. Don tsarin gano madaidaicin (kamar lidar mai haɗaɗɗiya), ana buƙatar Laser madaidaiciya madaidaiciya tare da ƙunƙun girman layi a matsayin oscillator na gida.
2. Fito da fifikon maɓalli na maɓalli
Idan aka fuskanci sigogi da yawa, ana iya yanke shawara bisa manyan abubuwan da suka fi dacewa:
Ƙaddamar da sigogi: Na farko, ƙayyade tsayin raƙuman ruwa da ingancin katako. An ƙayyade tsawon zangon ta hanyar mahimman buƙatun aikace-aikacen (halayen ɗaukar kayan abu, ƙa'idodin aminci, layin amsawar atomic), kuma yawanci babu wurin yin sulhu. Ingancin katako kai tsaye yana ƙayyade ainihin yuwuwar aikace-aikacen. Misali, ingantattun injina ba za su iya karɓar lasers tare da babban M² ba.
Siffofin ayyuka: Na biyu, kula da ƙarfin fitarwa da faɗin layi / polarization. Dole ne wutar lantarki ta cika madaidaicin makamashi ko buƙatun inganci na aikace-aikacen. An ƙididdige ƙimar layi da halayen polarization bisa ƙayyadaddun hanyar fasaha na aikace-aikacen (kamar ko tsangwama ko mitar mita yana da hannu). Mahimman sigogi masu amfani: A ƙarshe, yi la'akari da kwanciyar hankali (kamar kwanciyar hankali na fitarwa na dogon lokaci), amintacce (lokacin aiki mara kuskure), yawan wutar lantarki, daidaitawar mu'amala da farashi. Waɗannan sigogi suna shafar wahalar haɗin kai da jimlar kuɗin mallakar laser a cikin ainihin yanayin aiki.

3. Zaɓi da hukunci tsakanin yanayin-ɗaya da multi-mode
Ko da yake wannan labarin ya mayar da hankali kan yanayin guda ɗayafiber Laser, yana da mahimmanci a fahimci a fili wajibcin zabar yanayi guda ɗaya a ainihin zaɓi. Lokacin da ainihin abubuwan da ake buƙata na aikace-aikacen su ne mafi girman daidaiton aiki, mafi ƙarancin yankin da zafi ya shafa, ƙarfin mayar da hankali ko mafi tsayin watsawa, Laser fiber-mode guda ɗaya shine kawai zaɓi daidai. Sabanin haka, idan aikace-aikacen yafi ya ƙunshi lokacin farin ciki farantin walda, babban yanki na jiyya ko watsawa mai tsayi mai tsayi, kuma cikakkiyar daidaiton buƙatu ba ta da girma, to, Laser fiber multimode na iya zama zaɓi na tattalin arziƙi kuma mai amfani saboda girman ƙarfin su da ƙarancin farashi.