Mhando dze laser inogadziriswa

Mhando dzelaser inogadziriswa

Kushandiswa kwemalaser anogadziriswa kunogona kukamurwa kuita zvikamu zviviri zvikuru: chimwe ndechekuti malaser ane mutsetse mumwe chete kana akawanda ane mutsetse mumwe chete asingakwanise kupa mawavelength anodiwa kana akawanda akasiyana; Chimwe chikamu chinosanganisira mamiriro ezvinhu apolaserkureba kwemafungu kunofanira kugara kuchigadziriswa panguva yekuedza kana bvunzo, dzakadai se spectroscopy uye kuedza kwekuona pombi.

Mhando dzakawanda dzema laser anogadziriswa anogona kugadzira ma wave anogadziriswa (CW), nanosecond, picosecond kana femtosecond pulse outputs. Hunhu hwayo hunobuda hunoenderana ne laser gain medium inoshandiswa. Chinodiwa chikuru kune ma laser anogadziriswa ndechekuti anogona kuburitsa ma lasers pamusoro pema wavelengths akasiyana-siyana. Zvikamu zvakakosha zve optical zvinogona kushandiswa kusarudza ma wavelengths chaiwo kana ma wavelength bands kubva kuma emission bands emalaser anogadziriswaPano tichakuzivisai ma lasers akawanda akajairika

Laser yewaya inogadziriswa yeCW yakamira

Mukufunga, iyoLaser yeCW inogadziriswandiyo nzira iri nyore yekugadzirwa kwelaser. Iyi laser inosanganisira girazi rine mwenje wepamusoro, gain medium uye output coupling mirror (ona Mufananidzo 1), uye inogona kupa CW output uchishandisa nzira dzakasiyana-siyana dze laser gain. Kuti uwane tunability, gain medium inogona kufukidza target wavelength range inofanira kusarudzwa.

2. Laser yemhete yeCW inogadziriswa

MaRing lasers ave achishandiswa kwenguva yakareba kuti awane tunoble CW output kuburikidza ne single longitudinal mode, ine spectral bandwidth iri mu kilohertz range. Kufanana nema standing wave lasers, tunable ring lasers inogonawo kushandisa madhayi ne titanium sapphire se gain media. Madhayi anogona kupa mutsetse wakamanikana zvikuru uri pasi pe 100 kHz, nepo titanium sapphire ichipa mutsetse wakamanikana uri pasi pe 30 kHz. Tuning range ye dye laser i550 kusvika 760 nm, uye ye titanium sapphire laser i680 kusvika 1035 nm. Outputs dzemhando dzese dze lasers dzinogona kuwedzerwa kaviri ku UV band.

3. Laser inovharwa nenzira inotevedzana

Kune akawanda mashandisirwo, kunyatsotsanangura hunhu hwenguva inobuda nelaser kwakakosha kupfuura kunyatsotsanangura simba. Kutaura zvazviri, kuwana mapfupi e optical pulses kunoda gadziriro ye cavity ine ma longitudinal modes akawanda anorira panguva imwe chete. Kana aya ma cyclic longitudinal modes aine hukama hwakagadzika mukati me laser cavity, laser ichave yakavharirwa mode. Izvi zvichaita kuti pulse imwe chete itenderere mukati me cavity, nenguva yayo inotsanangurwa nehurefu hwe laser cavity. Active mode-locking inogona kuwanikwa uchishandisamodulator yeacousto-optic(AOM), kana kuti passive mode-locking inogona kuonekwa kuburikidza neKerr lens.

4. Laser ye ytterbium inokurumidza zvikuru

Kunyange zvazvo titanium sapphire lasers ichishanda zvakanyanya, mimwe miedzo yekufungidzira zvinhu zvipenyu inoda marefu ewavelength. Maitiro ekunyudzwa kwemaphoton maviri anowanzo kurudzirwa nemaphoton ane wavelength ye900 nm. Nekuti marefu ewavelength anoreva kupararira kushoma, marefu ewavelength ekukurudzira zvinhu anogona kutungamira zvinobudirira mukuyedza zvinhu zvipenyu zvinoda kudzika kwemifananidzo.

Mazuva ano, ma laser anogadziriswa anoshandiswa muminda yakawanda yakakosha, kubva pakutsvagisa kwesainzi kusvika pakugadzira ma laser uye sainzi yehupenyu nehutano. Rudzi rwetekinoroji rwuripo parizvino rwakakura zvikuru, kubva kuma system anogadziriswa eCW, ane upamhi hwakamanikana hunogona kushandiswa pakuongorora ma spectroscopy ane resolution yepamusoro, kubatwa kwema molecular neatomic, uye kuyedza kwe quantum optics, zvichipa ruzivo rwakakosha kune vaongorori vemazuva ano. Vagadziri ve laser vemazuva ano vanopa mhinduro dze one-stop, vachipa kuburitswa kwe laser kunodarika 300 nm mukati me nanojoule energy range. Masisitimu akaomarara anotenderera pa wide spectral range inoyevedza ye 200 kusvika 20,000 nm mu microjoule ne millijoule energy ranges.