Kuderedza huwandu hweupamhi hwemutsara welaser
Upamhi hwemutsara welaser hune chekuita zvakananga nerudzi rwelaser. Upamhi hwemutsara welaser hunogona kuderedzwa nekugadzirisa dhizaini yelaser uye kuderedza simba reruzha rwekunze zvakanyanya sezvinobvira. Danho rekutanga nderekuona kuti ndeipi inotonga, ruzha rwequantum kana ruzha rwekare, sezvo izvi zvichizokanganisa kuyera kunotevera.
Kana simba remukati memugero rakwira, kurasikirwa kwe resonator kunenge kwakaderera uye nguva yekudzoka nekudzoka ye resonator yakareba, ruzha rwe quantum rwelaser(ruzha rwekubuda kwemhepo) haruna simba guru. Ruzha rwekare runogona kukonzerwa nekukwira kwesimba remagetsi. Kuchinja-chinja uku kunogona kuderedzwa nekushandisa resonator yelaser pfupi, asi dzimwe nguva muma resonator mapfupi, kuchinja-chinja kwehurefu kunogona kuunza simba rakasimba. Dhizaini yemuchina ine musoro inogona kuderedza kubatana pakati pe resonator yelaser nemwaranzi yekunze, uye zvakare kuderedza mhedzisiro yekupisa. Kunewo kuchinja-chinja kwekupisa mu gain medium, kunokonzerwa nekuchinja-chinja kwesimba repombi.
Kuti ruzha rushande zvakanaka, mimwe michina inosimbisa mashandiro inofanira kushandiswa, asi zvakanaka kutanga kushandisa nzira dzinoshanda dzisingashande. Linewidth ye single-frequency solid-state laser uyelaser yefaibhaine makirohertz akati wandei, uye dzimwe nguva isingasviki 1KHz. Nekushandisa nzira yekusimbisa inoshanda, upamhi hwemutsara husingasviki 1KHz hunogona kuwanikwa. Upamhi hwemutsara wemadiode elaser hunowanzo kuve muMHZ uye hunogonawo kuderedzwa kusvika kuKHz, senge mumalaser ediode ekunze, kunyanya kune maoptical feedback diodes ane cavity reference cavity yakanyanya kunaka.
Zvakakosha kuziva kuti mune dzimwe nguva, achiedza chelaserhazvidiwi kuti chiedza chive chakamanikana zvikuru:
1. Kana kureba kwekubatana kwakareba, mhedzisiro yekubatana (nekuda kwekusasimba kwekuratidzira kweparasitic) ichakanganisa chimiro chechiedza. Mukuratidzira kwelaser projection, mhedzisiro yema speckle inogona kukanganisa kunaka kwenzvimbo inodzoka.
2. Kana chiedza chikatumirwa mu active kana passive optical fibers, mutsetse wakamanikana upamhi hunokonzera mamwe matambudziko nekuda kwekukurumidziswa kweBrillouin scattering. Panguva ino, mutsetse wakamanikana unofanirwa kuwedzerwa, semuenzaniso, nekugadzirisa laser diode ne current kana kushandisa optical modulator kuti inokurumidza kutenderera frequency. Mutsetse wakamanikana unoshandiswa mune dzimwe mamiriro ezvinhu. Mutsetse wakamanikana unoshandiswawo kutsanangura hupamhi hwekuora kwe optical.
Nguva yekutumira: Zvita-09-2025