Kutaurirana kweQuantum: lasers dzakamanikana dzemutsetse

Kutaurirana kweQuantum:ma lasers akamanikana emutsetse wakamanikana

Laser ine upamhi hwakatetepaimhando yelaser ine hunhu hwakakosha hwe optical, iyo inoratidzwa nekukwanisa kugadzira laser beam ine optical linewidth diki kwazvo (ndiko kuti, narrow spectrum). Upamhi hwemutsara welaser ine narrow linewidth hunoreva upamhi hwe spectrum yayo, inowanzo ratidzwa mu bandwidth mukati me unit frequency, uye upamhi uhwu hunozivikanwawo se "spectral line width" kana kungoti "line width". Narrow linewidth lasers dzine upamhi hwemutsara wakamanikana, kazhinji pakati pemazana mashoma kilohertz (kHz) uye megahertz shoma (MHz), iyo iri diki zvikuru pane spectral line width yema lasers akajairwa.

Kupatsanurwa nechimiro chegomba:

1. Linear cavity fiber lasers dzakakamurwa kuva distributed Bragg reflection type (DBR Laser) uye distributed feedback type (Laser yeDFB) zvivakwa zviviri. Laser inobuda yemalaser ese ari maviri ine chiedza chakabatana zvikuru ine hupamhi hwakatetepa uye ruzha rwakaderera. DFB fiber laser inogona kuwana mhinduro yelaser uyelasersarudzo yemodhi, saka kugadzikana kwemafrequency elaser anobuda kwakanaka, uye zviri nyore kuwana stable single longitudinal mode output.

2. Malaser efiber ane ring-cavity anoburitsa malaser ane upamhi hwakamanikana nekuisa mafirita ane bhandi rakamanikana akadai seFabry-Perot (FP) interference cavities, fiber grating kana sagnac ring cavities mu cavity. Zvisinei, nekuda kwehurefu hwe cavity, longitudinal mode interval idiki, uye zviri nyore kusvetuka mode pasi pesimba renzvimbo, uye kugadzikana kwakashata.

Chikumbiro Chechigadzirwa:

1. Sensor yeOptical Laser yakamanikana senzvimbo yakakodzera yechiedza cheoptical fiber sensors, nekubatanidza ne optical fiber sensors, inogona kuyera zvakanyatsonaka uye zvine hungwaru. Semuenzaniso, mu sensors dze fiber optic dzekumanikidza kana tembiricha, kugadzikana kwe sensor yakamanikana yelinewidth kunobatsira kuona kuti mhedzisiro yekuyera ndeyechokwadi.

2. Kuyera kwespectral ine resolution yepamusoro MaLaser ane upamhi hwemutsara mutete ane upamhi hwemutsara mutete kwazvo, zvichiita kuti ave manyuko akakodzera espectrometer ine resolution yepamusoro. Nekusarudza urefu hwewavelength neupamhi hwemutsara, maLaser ane upamhi hwemutsara mutete anogona kushandiswa pakuongorora kwakarurama kwespectral uye kuyerwa kwespectral. Semuenzaniso, mumasensa egasi uye kutarisa nharaunda, maLaser ane upamhi hwemutsara mutete anogona kushandiswa kuwana zviyero zvakarurama zvekunyudzwa kweoptical, optical emission uye molecular spectra mumhepo.

3. Lidar single-frequency narrow line-width fiber lasers inewo mashandisirwo akakosha mu liDAR kana laser ranging systems. Ichishandisa single frequency narrow line width fiber laser senzira yekuona chiedza, pamwe chete ne optical coherence detection, inogona kuvaka daro refu (mazana emakiromita) liDAR kana rangefinder. Iyi nheyo ine musimboti wekushanda wakafanana ne OFDR tekinoroji mu optical fiber, saka haina kungova ne spatial resolution yakakwira chete, asiwo inogona kuwedzera daro rekuyera. Mu system iyi, laser spectral line width kana coherence length ndiyo inosarudza daro rekuyera uye kurongeka kwekuyera, saka kana light source ikabatana zviri nani, ndipo panowedzera kushanda kwe system yese.