1.Laser chikwata
Laser ndiyo inonyanya kukosha chikamu cheiyo optical module iyo inopinza ikozvino mune semiconductor zvinhu uye inoburitsa laser mwenje kuburikidza nephoton oscillations uye kuwana mumhango.Parizvino, anonyanya kushandiswa lasers iFP uye DFB lasers.Musiyano ndewekuti semiconductor zvinhu uye dhizaini chimiro zvakasiyana.Mutengo weDFB laser unodhura zvakanyanya kupfuura iyo FP laser.Optical modules ane kutapurirana madaro anosvika 40KM anowanzo shandisa FP lasers;optical modules ane mafambiro ekufambisa ≥40KM anowanzo shandisa DFB lasers.
2.Kurasikirwa uye kupararira
Kurasikirwa ndiko kurasikirwa kwesimba rechiedza nekuda kwekutorwa uye kupararira kwepakati uye kubuda kwechiedza kana chiedza chichiendeswa mufiber.Ichi chikamu chesimba chinoraswa pane imwe nhanho sezvo chinhambwe chekufambisa chichiwedzera.Kupararira kunonyanya kukonzerwa nekusaenzana kwemafungu emagetsi emagetsi akasiyana-siyana achipararira muchikamu chimwe chete, izvo zvinoita kuti zvikamu zvakasiyana-siyana zvewavelength zvechiratidzo chemaziso kusvika kugamuchira kuguma panguva dzakasiyana nekuda kwekuunganidza kwechinhambwe chekufambisa, zvichiita kuti pulse iwedzere uye nokudaro kusakwanisa kusiyanisa kukosha kwezviratidzo.Izvi miviri miviri inonyanya kukanganisa kureba kwekufambisa kwe optical module.Muchigadziro chaicho chekushandisa, 1310nm optical module inowanzoverenga kurasikirwa kwekubatanidza pa 0.35dBm/km, uye 1550nm optical module inowanzoverenga kurasikirwa kwekubatanidza pa .20dBm/km, uye inoverenga kukosha kwekuparadzira.Yakaomesesa zvakanyanya, kazhinji chete yekutarisa.
3.Transmitted optical simba uye kugamuchira kunzwa
Iyo inofambiswa optical simba inoreva kubuda kwemagetsi emagetsi emwenje pamagumo ekutumira eiyo optical module.Iyo yekugamuchira senitivity inoreva hushoma hwakagashirwa optical simba reiyo optical module pane imwe chiyero uye bit kukanganisa mwero.Iwo mayuniti eaya maparamita maviri dBm (zvinoreva decibel milliwatt, logarithm yesimba unit mw, fomula yekuverenga ndeye 10lg, 1mw inoshandurwa kuita 0dBm), iyo inonyanya kushandiswa kutsanangura kureba kwechigadzirwa, kureba kwakasiyana, chiyero chekufambisa uye Iyo optical module's optical transmit simba uye inogamuchira senitivity ichave yakasiyana, chero bedzi kureba kwekufambisa kuchigona kuvimbiswa.
4.Optical module hupenyu
International yakabatana zviyero, 50,000 maawa ebasa rinoenderera, maawa makumi mashanu (50,000 makore akaenzana nemakore mashanu).
Iyo SFP optical modules ese ari LC interfaces.Iyo GBIC optical modules ese ari SC interfaces.Mamwe mainterface anosanganisira FC neST.