Ukulinganiswa kobubanzi bomugqa we-laser

Ukulinganiswa kobubanzi bomugqa we-laser
Kunezindlela eziningi zokulinganisaububanzi bomugqa we-laser:
1. Uma ububanzi bomugqa we-laser bukhulu (> 10 GHz, lapho izindlela eziningi zijikeleza kuma-resonator amaningi e-laser), ama-spectrometer endabuko asebenzisa ama-diffraction gratings angasetshenziswa ukukala. Kodwa-ke, le ndlela kunzima ukufeza isixazululo semvamisa ephezulu.
2. Enye indlela ukusebenzisa i-frequency discriminator ukuguqula ukushintshashintsha kwemvamisa kube ukushintshashintsha kwamandla. I-discriminator ingaba i-interferometer engalingani noma i-reference cavity enembile kakhulu. Isixazululo sale ndlela yokulinganisa naso sinqunyelwe.
3. Ama-laser anemvamisa eyodwa ngokuvamile asebenzisa indlela ye-heterodyne, eqopha imvamisa yokushaya kwemvamisa yokukhipha i-laser kanye nemvamisa yayo ngemuva kokususwa kanye nokubambezeleka.
4. Kububanzi bemigqa obungamakhulu ambalwa e-hertz, indlela yendabuko ye-heterodyne kunzima ukuyisebenzisa ngenxa yesidingo sobude obukhulu bokulibaziseka. I-loop ye-fiber loop kanye ne-fiber amplifier eyakhelwe ngaphakathi ingasetshenziswa ukwandisa ubude bokulibaziseka.
5. Ngokuqopha imvamisa yokushaya kwama-laser amabili azimele, kungatholakala isinqumo esiphezulu kakhulu. Kulokhu, umsindo we-laser yokubhekisela uphansi kakhulu kunowe-i-laser elinganisiwe, noma izinkomba zabo zokusebenza ziyafana. Izihibe zokukhiya noma izindlela ezisekelwe ekurekhodweni kwezibalo ukuze kubalwe umehluko wemvamisa esheshayo zingasetshenziswa. Le ndlela ilula kakhulu futhi izinzile, kodwa idinga enye i-laser (enemvamisa eseduze nei-laser elinganisiweUma ububanzi bomugqa obulinganisiwe budinga ububanzi be-spectral, ikamu lemvamisa lilula kakhulu.
Ukulinganisa imvamisa yokubona ngokuvamile kudinga ukuhlinzeka ngereferensi ethile yemvamisa (noma isikhathi) endaweni ethile.ama-laser obubanzi bomugqa omncane, kudingeka umsebe owodwa wokubhekisela ukuze kunikezwe ireferensi enembile eyanele. Indlela ye-heterodyne ithola ireferensi yemvamisa ngokusebenzisa ukubambezeleka kwesikhathi eside ngokwanele kudivayisi yokuhlola uqobo. Okungcono kakhulu, ukuhambisana kwesikhathi phakathi komsebe wokuqala nomsebe wayo obambezelekile kufanele kugwenywe. Ngakho-ke, imicu ende ye-optical ivame ukusetshenziswa. Kodwa-ke, ngenxa yokuguquguquka okuzinzile nemiphumela ye-acoustic, imicu ende ye-optical iveza umsindo wesigaba owengeziwe.