Kuyerwa kwehupamhi hwemutsara weLaser

Kuyerwa kwehupamhi hwemutsara weLaser
Kune nzira dzakawanda dzekuyeraupamhi hwemutsara welaser:
1. Kana upamhi hwelaser hwakakura (> 10 GHz, kana mamodhi akawanda achitenderera mumaresonator akawanda elaser), maspectrometer echinyakare anoshandisa diffraction gratings anogona kushandiswa pakuyera. Zvisinei, nzira iyi yakaoma kuwana high frequency resolution.
2. Imwe nzira ndeyekushandisa frequency discriminator kushandura frequency fluctuations kuita intensity fluctuations. Discriminator inogona kuva unbalanced interferometer kana high-precision reference cavity. Resolution yeiyi measurement method ine muganhowo.
3. MaLaser ane mafrequency maviri anowanzo shandisa nzira yeheterodyne, iyo inorekodha mafrequency ekurova kwefrequency yekubuda kwelaser uye mafrequency ayo mushure mekudzima nekunonoka.
4. Kune hupamhi hwemitsara yemazana mashoma ehertz, nzira yechinyakare ye heterodyne yakaoma kushandisa nekuda kwekudiwa kwehurefu hwekunonoka hwakakura. Chivharo chefiber loop uye amplifier yefiber yakavakirwa mukati inogona kushandiswa kuwedzera hurefu hwekunonoka.
5. Nekurekodha frequency yekurova kwema laser maviri akazvimiririra, resolution yakakwira zvikuru inogona kuwanikwa. Muchiitiko ichi, ruzha rwe reference laser rwakaderera zvikuru pane rwelaser yakayerwa, kana kuti zviratidzo zvavo zvekushanda zvakafanana. Zvidimbu zvekukiya kana nzira dzakavakirwa pakunyora masvomhu kuti uverenge musiyano wefrequency instantaneous zvinogona kushandiswa. Nzira iyi iri nyore uye yakagadzikana, asi inoda imwe laser (ine frequency iri pedyo nelaser yakayerwaKana upamhi hwemutsara wakayerwa huchida huwandu hwakafara hwemaspectral, muzinga wefrequency comb unoshanda zvikuru.
Kuyerwa kwemafrequency ekuona kunowanzo da kupa ratidziro chaiyo yefrequency (kana nguva) pane imwe nzvimbo.ma lasers akamanikana emutsetse wakamanikana, danda rimwe chete rekutarisa rinodiwa kuti ripe referensi yakakwana. Nzira ye heterodyne inowana referensi ye frequency nekushandisa kunonoka kwenguva yakareba zvakakwana pamudziyo wekuyedza pachawo. Zvakanaka, kubatana kwenguva pakati pedanda rekutanga nedanda rayo rinononoka kunofanira kudzivirirwa. Nokudaro, ma fiber marefu e optical anowanzo shandiswa. Zvisinei, nekuda kwekuchinja-chinja kwakagadzikana uye mhedzisiro ye acoustic, ma fiber marefu e optical anounza ruzha rwe phase.