Mafungiro maviri ekutanga e laser, imwe inokurudzirwa kuburitsa, imwe iri resonator. Mupepa iri, musimboti wekutanga weDBR (Distributed Bragg Reflector), inova resonator muVCSEL type lasers, inounzwa. Ruzivo ruviri rwefizikisi yefizikisi: yekuratidzira chikamu shanduko uye yakatetepa kupindira kwefirimu inounzwa zvichiteerana.
Nzvimbo yeDBR muVCSEL laser inoratidzwa pazasi:
Reflection phase transition
Kana chiedza chichiendeswa kubva kune optically sparse medium n1 kusvika kune optically dense medium n2 (refractive index n2> n1), chiedza chinoratidzwa chichapinda 180 degree phase transition pane interface. Nekudaro, hapana shanduko yechikamu inoitika kana photodense yepakati ichiendeswa kune photophobic medium.
Kubva pamaonero einjiniya, mwenje zvakare ndeye electromagnetic wave, uye kuratidzwa kwechiedza kunogona kufananidzwa nekuratidzwa kwechiratidzo chemagetsi kana impedance yachinja. Kana chiratidzo chemagetsi chichipinda mumutsara wepasi-impedance transmission line kubva kune yakakwira-impedance transmission line, inoburitsa negative phase reflection (phase transition of 180 degrees), uye painopinda high-impedance transmission line kubva kune yakaderera-impedance transmission line. , inogadzira fungidziro yechikamu chakanaka (hapana shanduko yechikamu). Iyo refractive indekisi ye optical transmission medium inofananidzira kune impedance yemagetsi chiratidzo chekufambisa.
Tsananguro dzakadzama dziri kunze kwechikamu chechinyorwa chino.
Kupindira kwemufirimu mutete
Kana chiedza chikapfuura nepakati pefirimu yakaonda, inoratidzirwa kaviri pamusoro pepamusoro nepamusoro pepamusoro, uye kukora kwefirimu yakaonda kuchakanganisa mutsauko we optical nzira yezviratidziro zviviri. Kana ukobvu hwefirimu rakatetepa huchidzorwa kuve (1/4+N) nguva yewavelength, musiyano wenzira yekuona yezviratidziro zviviri ndeye (1/2+2N), uye musiyano wenzira yekuona unoenderana ne180-degree. chikamu shanduko, uye imwe yezviratidziro ichaita 180-degree chikamu shanduko. Ipapo chiedza chinoratidzwa chenguva mbiri chinopedzisira chiri muchikamu, uye iyo yepamusoro inowedzerwa, kureva kuti, iyo yose yekuratidzira coefficient inowedzerwa. Muchokwadi, DBR inzvimbo inotsinhanisa yeaviri refractive index media. Kana chiedza chikapfuura nepakati peDBR, imwe neimwe dhizaini inowedzera imwe ratidziro sisitimu, uye iyo inoratidzira coefficient yeDBR inogona kusvika padanho repamusoro.
Dhiyagiramu yekukanganisa nzira yefirimu:
Cherechedzo 1: Kuti uratidze zvakajeka, maranzi matatu echiedza anodhirowa akaparadzana, asi akanyatsobatanidzwa pamwechete;
Mufananidzo 2: Kuratidzira kwekutanga kwebhuruu (180 degree phase transition) uye yechipiri inoratidzira mwenje yeyero (180 dhigirii chikamu musiyano nekuda kwekusiyana kwenzira yekuona) inozopedzisira iri muchikamu, uye iyo yepamusoro inowedzerwa.
Iyo DBR chimiro chinogona kukwidziridza kutaridzika kuburikidza neakawanda akaturikidzana ekuratidzira. Nekudaro, DBR inoshanda ichishandisa iyo yekukanganisa musimboti, saka DBR ichave nepamusoro-reflection kune mamwe mawavelength akasiyana emwenje, uye inogona kuwana yakaderera kurasikirwa, uye mamwe marudzi ezviratidziro (senge simbi nzvimbo) akasiyana mukuratidzira maitiro.
Zviri pamusoro apaHDV Phoerekitironi Technology Ltd. kuunza vatengi nezve "mbiri yekutanga concepts yelaser" chinyorwa chekutanga, uye kambani yedu inyanzvi yekugadzira yevagadziri ve optical network, zvigadzirwa zvinobatanidzwa ndezveONU series (OLT ONU/AC ONU/CATV ONU/GPON ONU/XPON. ONU), Optical module series (optical fiber module/Ethernet optical fiber module / SFP optical module), OLT series (OLT equipment /OLT switch/optical cat OLT), nezvimwewo, kune zvakasiyana-siyana zvekugadzirwa kwekukurukurirana kune zvinodiwa zvakasiyana-siyana. scenarios for network support, welcome to consult.