Ukuxhumana kwe-Quantum: ama-laser obubanzi obuncane bomugqa

Ukuxhumana kwe-Quantum:ama-lasers wobubanzi bomugqa emincane

I-laser yobubanzi obuncane bomugqaiwuhlobo lwe-laser olunezici ezikhethekile ze-optical, ezibonakala ngokukwazi ukukhiqiza ugongolo lwe-laser olunomugqa womugqa omncane kakhulu wokukhanya (okungukuthi, i-spectrum encane). Ububanzi bomugqa we-laser yobubanzi obuncane bubhekisela ebubanzini be-spectrum yayo, ngokuvamile evezwe kumkhawulokudonsa ngaphakathi kwefrikhwensi yeyunithi, futhi lobu bubanzi buyaziwa nangokuthi "ububanzi bomugqa we-spectral" noma "ububanzi bomugqa". Amalaser obubanzi bomugqa obuncane anobubanzi bomugqa omncane, ngokuvamile phakathi kwamakhulu ambalwa e-kilohertz (kHz) kanye nama-megahertz ambalwa (MHz), amancane kakhulu kunobubanzi bomugqa we-spectral wama-lasers avamile.

Ukuhlukaniswa ngesakhiwo somgodi:

1. Ama-laser fiber fiber lasers ahlukaniswe abe uhlobo olusabalalisiwe lwe-Bragg reflection (DBR Laser) kanye nohlobo lwempendulo esabalalisiwe (I-DFB Laser) izakhiwo ezimbili. I-laser ephumayo yawo womabili ama-laser ingukukhanya okuhambisana kakhulu nobubanzi bomugqa obuncane nomsindo ophansi. I-DFB fiber laser ingafinyelela kokubili impendulo ye-laser kanyelaserUkukhetha imodi, ngakho-ke ukuzinza kwefrikhwensi ye-laser kuhle, futhi kulula ukuthola okukhiphayo kwemodi eyodwa ye-longitudinal ezinzile.

2. Ama-laser we-ring-cavity fibre akhipha ama-laser anobubanzi obuncane ngokwethula izihlungi zebhande elincane njengemigodi yokuphazamiseka ye-Fabry-Perot (FP), i-fiber grating noma imigodi yendandatho ye-sagnac emgodini. Kodwa-ke, ngenxa yobude bomgodi omude, isikhawu semodi ye-longitudinal sincane, futhi kulula ukweqa imodi ngaphansi kwethonya lendawo, futhi ukuzinza akukuhle.

Isicelo somkhiqizo:

1. I-Optical sensor Ububanzi obuncane be-laser njengomthombo wokukhanya ofanele wezinzwa ze-fiber optical, ngokuhlanganisa nezinzwa ze-fiber optical, zingafinyelela ukunemba okuphezulu, ukukalwa kokuzwela okukhulu. Isibonelo, kungcindezi noma izinzwa ze-fiber optic lokushisa, ukuzinza kwelaser yobubanzi obuncane bomugqa kusiza ukuqinisekisa ukunemba kwemiphumela yokulinganisa.

2. Isilinganiso se-spectral sokulungiswa okuphezulu Ama-laser obubanzi bomugqa obuncane anobubanzi bomugqa we-spectral emincane kakhulu, okuwenza abe imithombo ekahle yama-spectrometer anokucaca okuphezulu. Ngokukhetha ubude begagasi obufanele kanye nobubanzi bomugqa, ama-lasers anobubanzi obuncane bomugqa angasetshenziselwa ukuhlaziya okunembile kwe-spectral kanye nesilinganiso sokubukeka. Isibonelo, kuzinzwa zegesi kanye nokuqapha kwemvelo, amalaser obubanzi obuncane bomugqa angasetshenziswa ukuze kuzuzwe izilinganiso ezinembile zokumuncwa kwe-optical, ukukhishwa kwe-optical kanye ne-spectra ye-molecular emkhathini.

3. Amalaser efiber we-Lidar single-frequency emincane yobubanzi bomugqa womugqa nawo anezinhlelo zokusebenza ezibaluleke kakhulu ku-liDAR noma kumasistimu asukela nge-laser. Isebenzisa i-fibre laser yobubanzi bomugqa omncane owodwa njengomthombo wokukhanya otholwayo, ehlanganiswe nokutholwa kokuhambisana kokubona, ingakha ibanga elide (amakhulu amakhilomitha) i-liDAR noma i-rangefinder. Lo mgomo unomgomo ofanayo wokusebenza njengobuchwepheshe be-OFDR ku-fiber optical, ngakho-ke awunakho nje kuphela ukuxazulula indawo ephezulu kakhulu, kodwa futhi ungakhuphula ibanga lokulinganisa. Kulolu hlelo, ububanzi bomugqa we-laser spectral noma ubude bokuhambisana bunquma ibanga lokulinganisa ibanga kanye nokunemba kokulinganisa, ngakho-ke ukuhambisana okungcono komthombo wokukhanya, ukusebenza kwayo yonke isistimu kuya phezulu.