Quantum kutaurirana: nhete linewidth lasers

Quantum kutaurirana:nhete linewidth lasers

Narrow linewidth laserimhando yelaser ine special optical properties, iyo inoratidzwa nekugona kugadzira laser danda rine diki diki rekuona mutsara (kureva, nhete spectrum). Iyo mutsara wakafara weiyo nhete linewidth laser inoreva hupamhi hweiyo spectrum, kazhinji inoratidzirwa mubhendi mukati meiyo unit frequency, uye hupamhi uhwu hunozivikanwawo se "spectral line wide" kana kungoti "line upamhi". Narrow linewidth lasers ane mutsetse mutsetse wakatetepa, kazhinji pakati pemazana mashoma kilohertz (kHz) uye mashoma megahertz (MHz), iyo idiki zvakanyanya pane inotaridzika mutsara upamhi hweakajairika lasers.

Classification by cavity structure:

1. Linear mhango faibha lasers akakamurwa akaparadzirwa Bragg reflection mhando (DBR Laser) uye akagovera mhinduro mhando (DFB Laser) zvimiro zviviri. Iyo inobuda laser yeese maviri lasers yakanyanya kuwirirana mwenje ine nhete mutsara uye yakaderera ruzha. DFB faibha laser inogona kuwana ese maviri laser mhinduro uyelaserkusarudzwa kwemodhi, saka iyo yekubuda laser frequency kugadzikana kwakanaka, uye zviri nyore kuwana yakagadzikana imwe longitudinal modhi yekubuda.

2. Ring-cavity fiber lasers inoburitsa yakamanikana-upamhi lasers nekuunza yakamanikana-bhendi mafirita akadai seFabry-Perot (FP) kupindira cavities, fiber grating kana sagnac ring cavities mumhango. Nekudaro, nekuda kwehurefu hwegomba, iyo longitudinal modhi yepakati idiki, uye zviri nyore kusvetuka modhi pasi pesimba renharaunda, uye kugadzikana hakuna kunaka.

Product Application:

1. Optical sensor Narrow-width laser sechinhu chakanaka chechiedza che optical fiber sensors, nekubatanidza ne optical fiber sensors, inogona kuwana yakakwirira-yakarurama, yakakwirira-sensitivity kuyerwa. Semuenzaniso, mukumanikidza kana tembiricha fibre optic sensors, kugadzikana kweiyo nhete linewidth laser inobatsira kuve nechokwadi chechokwadi chechiyero chemhedzisiro.

2. High-resolution spectral measurement Narrow linewidth lasers ane nhete ye spectral line widths, zvichiita kuti ive nzvimbo dzakakodzera dzepamusoro-resolution spectrometers. Nekusarudza iyo wavelength yakakodzera uye mutsara wemutsara, yakamanikana mutsara mutsara lasers inogona kushandiswa kwakaringana spectral ongororo uye spectral kuyerwa. Semuenzaniso, mune gasi sensors uye yekutarisa kwezvakatipoteredza, yakamanikana linewidth lasers inogona kushandiswa kuwana chaiyo kuyerwa kwe optical absorption, optical emission uye molecular spectra mumhepo.

3. Lidar single-frequency nhete mutsara-upamhi fiber lasers anewo akakosha maapplication mu liDAR kana laser rangeing system. Ichishandisa imwechete frequency yakatetepa mutsara wakafara fiber laser seyekuona mwenje sosi, yakasanganiswa nekuona kwekubatana kwekuona, inogona kuvaka chinhambwe chakareba (mazana emakiromita) liDAR kana rangefinder. Iyi nheyo ine imwechete yekushanda musimboti seOFDR tekinoroji mune optical fiber, saka haina kungoita yakakwira nzvimbo yekugadzirisa, asi zvakare inogona kuwedzera kuyerwa chinhambwe. Mune iyi sisitimu, iyo laser spectral mutsara wakafara kana kureba kwekubatana inotemesa kureba kuyerwa uye kuyerwa kwechiyero, saka zvirinani kuwirirana kwechiedza, kunowedzera kuita kwehurongwa hwese.