"Mwoyo" welaser: gainmedium
In tekinoroji yelaser, iyolaser gainmedium(inozivikanwawo sechinhu chinoshanda chepakati kana kuti laser) ndicho chinhu chikuru chechinhu ichi.laserInoita kuti nhamba dzezvipenyu dzishanduke kuburikidza nekupomba, inopa mukana wekuwedzera chiedza, inotsiva kurasikirwa kuri mugomba re resonant, uye nokudaro inogadzira coherent laser output. Pasina gain medium yakakodzera, paisazova nelaser inoshanda zvakanaka.
1. Pfungwa huru uye musimboti wekushanda kwekuwana media.
Basa re gain media nderekuwedzera simba re optical kuburikidza nekuburitsa simba. Kazhinji, kupomba kwekunze (optical pumping kana electrical pumping) kunodiwa kuti pave nesimba rekuchinja simba rezvikamu zvepamusoro.
2. Zvinodiwa kuti uwane nzira yakanaka yekuwana ruzivo:
Hazvisi zvese zvinhu zvinogona kushandiswa se gain media. Zvinodiwa zvakakosha: Kuchinja kweLaser: Kune simba guru rekubuda kwemhepo (o_em) muhuwandu hwewavelength hwakatarwa. Kujeka kwakanyanya: Chinhu chinobatika chinoonekwa zvakajeka kune laser uye pombi. Kunyudzwa kwepombi zvinobudirira: Kufananidza pombi inowanikwa (senge 808 nm LD pumping Nd:YAG) kwakakodzera hupenyu hwepamusoro (T): Hupenyu hurefu hunobatsira pakuchinja kweQ, hupenyu hupfupi hunobatsira pakuchinja. Kushanda kwe quantum kwakanyanya: Kudzimwa kwakaderera, kunyudzwa kwakaderera. Chigadzirwa che o·T chakakwira: Kuwana gain yakakwira uye threshold yakaderera. Wide gain bandwidth: Inobatsira pakugadzirisa wavelength uye ultrashort pulses. Hunhu hwekupisa uye hwemakanika: High thermal conductivity, low thermo-optic coefficient, high damage threshold. Zvimwe: Chemical stability, hapana hygroscopicity, high damage threshold. Izvi zvinowanzopesana. Semuenzaniso, wide bandwidth inowanzoreva three cross-section, uye izvi zvinoda kutengeserana muzvinoitika zvekushandisa.
Nzira yekuwana nayo mari ndiyo inonyanya kukosha pakuita izvimashandiro elaserKubva kuNd:YAG yekare kusvika kufiber dzemazuva ano dzine simba guru, kufambira mberi kwezvinhu kwakaramba kuchiwedzera mashandisirwo emalaser. Mukugadzira kwakakodzera, masimulation enhamba anowanzo dikanwa kuti pave nekukwanisa kuwedzera huwandu hwedoping, zvirongwa zvekupomba, nezvimwewo.
Nguva yekutumira: Kurume-24-2026