Chii chinonzi "cyclic fiber ring"? Unoziva zvakawanda sei nezvayo?
Tsanangudzo: Ringi yefiber ye optical iyo chiedza chinogona kutenderera nayo kakawanda
Mhete yefiber inotenderera imudziyo we fiber opticumo chiedza chinogona kutenderera kakawanda. Chinonyanya kushandiswa muhurongwa hwekutaurirana nefiber ye optical iri kure. Kunyangwe ine hurefu hwakaganhurirwa hwefaibha yemaziso, chiedza chechiratidzo chinogona kufambiswa kure kure nekumonereka kakawanda. Izvi zvinobatsira kudzidza mhedzisiro inokuvadza uye kusawirirana kwemaziso kunokanganisa kunaka kwechiedza chechiratidzo.
Mu tekinoroji yelaser, cyclic fiber loops inogona kushandiswa kuyera upamhi hwemutsara welaser, kunyanya kana hupamhi hwemutsara huri hudiki kwazvo (<1kHz). Uku kuwedzera kwenzira yekuyera hupamhi hwemutsara wega-heterodyne, iyo isingade reference laser yekuwedzera kuti iwane reference signal kubva payo, iyo inoda kushandiswa kwemafiber marefu emode imwe chete. Dambudziko ne self-heterodyne detection technology nderekuti nguva inodiwa inononoka yakafanana neyakaenderana yehupamhi hwemutsara, zvekuti hupamhi hwemutsetse hunongova kHz shoma, uye kunyange pasi pe1kHz hunoda urefu hwakakura hwefiber.
Mufananidzo 1: Dhiyagiramu yemufananidzo weringi yefiber inotenderera.
Chikonzero chikuru chekushandisa fiber loops ndechekuti fiber ine urefu hwepakati inogona kunonoka kwenguva refu nekuti chiedza chinofamba nemakonero akawanda mufiber. Kuti chiparadzanise chiedza chinotumirwa mumakonero akasiyana, acousto-optic modulator inogona kushandiswa mu loop kuti igadzire frequency shift (semuenzaniso, 100MHz). Nekuti frequency shift iyi yakakura kupfuura mutsetse wehupamhi, chiedza chakafamba nhamba yakasiyana yemakonero mu loop chinogona kuparadzaniswa munzvimbo yemakonero. Mumudziyo wekuona foto, yekutangachiedza chelaseruye kurova kwechiedza mushure mekuchinja kwema frequency kunogona kushandiswa kuyera upamhi hwemutsara.
Kana pasina mudziyo wekuwedzera simba muchiuno, kurasikirwa mumodulator yeacousto-optic nefiber kwakakura kwazvo, uye simba rechiedza rinoora zvakanyanya mushure mezvishwe zvakati wandei. Izvi zvinoderedza zvakanyanya huwandu hwezvishwe kana hupamhi hwemutsara hwayerwa. Zvishwe zvefiber zvinogona kuwedzerwa kuchiuno kubvisa muganho uyu.
Zvisinei, izvi zvinogadzira dambudziko idzva: kunyangwe chiedza chinopfuura nekutenderera kwakasiyana chakasiyana zvachose, chiratidzo chekurova chinobva kumaphoton akasiyana, izvo zvinoshandura spectrum yekurova zvachose. Mhete yefiber inogona kugadzirwa zvine musoro kuti idzivirire mhedzisiro iyi. Chekupedzisira, kunzwa kwe cyclic fiber loop kunogumira neruzha rweamplifier yefaibhaZvakakoshawo kufunga nezvekusaenderana kwefiber uye mitsetse isiri yeLorentz mukugadzirisa data.
Nguva yekutumira: Zvita-12-2023