Mhando dzetunable laser
Iko kushandiswa kwema lasers e tunable kunogona kupatsanurwa kuita mapoka makuru maviri: imwe ndeye apo imwe-mutsara kana yakawanda-mutsara yakatarwa-wavelength lasers haigone kupa inodiwa imwe kana akawanda discrete wavelengths; Chimwe chikamu chinosanganisira mamiriro ezvinhu apo iyolaserwavelength inofanirwa kugara ichigadziriswa panguva yekuyedzwa kana bvunzo, senge spectroscopy uye pombi-yekuona kuyedza.
Mazhinji marudzi eanobatika lasers anogona kugadzira tunable inoenderera mberi wave (CW), nanosecond, picosecond kana femtosecond pulse kubuda. Maitiro ayo ekubuda anotemerwa neiyo laser kuwana medium inoshandiswa. Chinhu chakakosha chinodiwa kune tunable lasers ndechekuti ivo vanogona kuburitsa lasers pamusoro pehupamhi hwewavelengths. Special optical components zvinogona kushandiswa kusarudza chaiwo wavelengths kana wavelength mabhendi kubva kumabhendi ekuburitsa.tunable lasers. Pano isu tichaunza akati wandei akajairika tunable lasers kwauri
Tunable CW yakamira wave laser
Conceptally, iyoTunable CW laserndiyo yakapfava laser architecture. Laser iyi inosanganisira yakakwira-reflectivity girazi, svikiro rekuwana uye chinobuda chekubatanidza girazi (ona Mufananidzo 1), uye inogona kupa CW kubuda uchishandisa akasiyana laser kuwana midhiya. Kuti uwane tunability, yepakati yekuwana iyo inogona kuvhara iyo inotarirwa wavelength renji inoda kusarudzwa.
2. Tunable CW mhete laser
Mhete lasers yagara ichishandiswa kuwana tunable CW kubuda kuburikidza neayo imwe longitudinal modhi, ine spectral bandwidth mu kilohertz renji. Zvakafanana nekumira wave lasers, tunable mhete lasers inogona zvakare kushandisa madhayi uye titanium safiro sekuwana midhiya. Dhayi dzinogona kupa mutsetse wakatetepa zvakanyanya wehupamhi isingasviki 100 kHz, nepo titanium sapphire ichipa mutsara wakafara usingasviki makumi matatu kHz. Iyo tuning renji yedhayi laser ndeye 550 kusvika 760 nm, uye iyo yetitanium sapphire laser ndeye 680 kusvika 1035 nm. Izvo zvinobuda zvemhando mbiri dze lasers zvinogona kuve frequency-kaviri kune UV bhendi.
3. Mode-yakakiyiwa quasi-inopfuurira laser
Kune akawanda maapplication, kunyatso tsanangura iyo nguva hunhu hwekubuda kwelaser kwakakosha pane kunyatso kutsanangura simba. Muchokwadi, kuwana mapfupi optical pulses kunoda kugadziridzwa kwegoti ine akawanda longitudinal modes anonzwika panguva imwe chete. Kana aya ma cyclic longitudinal modes aine hukama hwechikamu mukati meiyo laser cavity, iyo laser ichave mode-yakakiiwa. Izvi zvinogonesa kupuruzira kamwe chete mukati megomba, nenguva yayo inotsanangurwa nehurefu hwe laser cavity. Active mode-locking inogona kuwanikwa uchishandisa anacousto-optic modulator(AOM), kana passive mode-kukiya inogona kuwanikwa kuburikidza neKerr lens.
4. Ultrafast ytterbium laser
Kunyangwe titanium sapphire lasers ine hupamhi hwekuita, kumwe kuongorora kwebiological imaging kunoda kurebesa wavelengths. Yakajairika maviri-photon absorption process inonakidzwa nemafotoni ane wavelength ye900 nm. Nekuti kureba kwewavelengths kunoreva kupararira kushoma, kureba kwekunakidzwa kwewavelengths kunogona kunyatso kutyaira zviedzo zvebhayoloji zvinoda kudzika kwekufungidzira kwakadzama.
Mazuva ano, tunable lasers akaiswa munzvimbo dzakawanda dzakakosha, kubva pakutsvagisa kwesainzi kusvika kukugadzira laser uye hupenyu uye hutano sainzi. Iyo tekinoroji iripo parizvino yakakura kwazvo, kutanga kubva kune yakapfava CW tunable masisitimu, ayo akatetepa mutsara anogona kushandiswa yakakwirira-resolution spectroscopy, mamorekuru uye atomu kubatwa, uye quantum optics kuyedza, ichipa ruzivo rwakakosha kune vaongorori vemazuva ano. Nhasi vagadziri velaser vanopa imwe-yekumira mhinduro, ichipa laser kubuda inotenderera pamusoro pe300 nm mukati me nanojoule simba renji. Mamwe masisitimu akaomarara anotora inoshamisa yakafara spectral renji ye200 kusvika 20,000 nm mune microjoule uye millijoule simba renji.
Nguva yekutumira: Aug-12-2025