Hunhu hweEDFA Amplifier

Hunhu hweEDFA amplifier
Nheyo yekushanda kwema fiber amplifiers yakafanana zvikuru neye ma solid-state lasers. Masimba akakodzera, kunyudzwa uye kuwanikwa kwema erbium ions (Er ³ ⁺) mu quartz optical fibers zvinoratidzwa muMufananidzo 2. Hunhu husina chimiro hwe quartz hunowedzera simba re erbium ions kuita ma band, uye shanduko dzakawanda dzinogona kushandiswa kupomba ma erbium ions, nepo ma wavelength epombi anoshanda zvakanyanya ari 980 nm uye 1480 nm.
Kureba kwewavelength yeEDFA Amplifier kuri pakati chaipo pehuwandu hwewavelength hwe1330-1600nm hwekutaurirana kwefiber optic. EDFA Amplifier inoshanda muC-band (1530-1565nm) ine hwindo rekurasikirwa nefiber rakaderera yakashandiswa zvakanyanya. Kuti vashandise zvizere bandwidth resources ye optical fibers, vanhu vakazvipirawo kugadzira EDFAs muL-band (1570-1610nm). L-band iri pamuswe weEDFA gain spectrum, saka L-band EDFAs dzinofanira kushandisa fibers dzakareba uye simba repombi rakakwirira, kana kushandisa fibers dzakanyanya kudhakwa.
EDFA Optical amplifierine gain yakakwira (inopfuura 30-50dB) uye inopa gain yakatwasuka pamusoro peband yakafara yema frequency (kusvika 30nm), zvichiita kuti ive yakakodzera kuwedzera masaini mumatanho akawanda e optical, kunyanya mumasisitimu e dense wavelength division multiplexing (DWDM). Ruzha rwakaderera (4-8dB), rwunosvika pamuganho we quantum. Kana ikashandiswa kumasisitimu eWDM, crosstalk pakati pemachannels inoderedzwa uye ma amplifiers akawanda anogona kuderedzwa. Iine simba re saturation output rakawanda (10-20 dBm), inogona kushandiswa se power amplifier mushure me transmitter kuwedzera daro re transmission kana kugoverwa kwenhamba yema optical nodes pasina relay lines. Simba repombi rinodiwa rakaderera (makumi ema milliwatts). Gain yacho haina chekuita ne polarization state ye fiber, saka ine kugadzikana kwakanaka. Zviri nyore kubatanidza nema transmission optical fibers, nekurasikirwa kwakaderera kwe coupling (<1dB). Kunze kwepombi source, EDFAChinopa simba reOpticalinoumbwa nezvinhu zvisingashande. Saka, kana tichienzanisa nemagetsi anodzoreredza zvinhu akaomarara uye anodhura, mutengo wesystem unoderedzwa zvakanyanya uye kuvimbika kunovandudzwa.
Pamusoro pezvo, hunhu hwekuwedzera kweEDFAAmplifier haishande pane system bit rate uye data format, saka inogona kuwedzera nekutumira ruzivo rwedhijitari nerwe analog. Zvakaipa zve erbium doped fiber amplifier ndeizvi: saizi yakakura; Nguva yehupenyu hwepombi haisi refu; Haigone kubatanidzwa nezvimwe zvishandiso, izvo zvinoganhurira kushandiswa kweamplifier yefayibha yakadhonzwa ne erbiummukubatanidzwa kwe optoelectronic (OEIC). Pamusoro pezvo, bandwidth ye gain yeEDFA Amplifier inongovhara chikamu che low loss window ye quartz single-mode fiber, iyo inoganhurira huwandu hwe wavelength channels iyo fiber inogona kugamuchira, iyo iriwo zvikanganiso zvayo.