Mmepe na ọnọdụ ahịa nke laser a na-emegharị emegharị Nkebi nke abụọ

Mmepe na ọnọdụ ahịa nke laser a na-emegharị emegharị (Nkebi nke abụọ)

Ụkpụrụ ọrụ nkelaser a na-agbanwe agbanwe

E nwere ihe dị ka ụkpụrụ atọ maka ime ka laser gbanwee ogologo ebili mmiri.laser ndị a na-agbanwe agbanweJiri ihe ndị na-arụ ọrụ nwere ahịrị fluorescent sara mbara. Resonators ndị mejupụtara laser ahụ nwere obere mfu naanị n'elu oke ogologo ebili mmiri dị warara. Ya mere, nke mbụ bụ ịgbanwe ogologo ebili nke laser ahụ site na ịgbanwe ogologo ebili mmiri kwekọrọ na mpaghara obere mfu nke resonator site na ụfọdụ ihe (dị ka grating). Nke abụọ bụ ịgbanwe ọkwa ike nke mgbanwe laser site na ịgbanwe ụfọdụ paramita mpụga (dị ka ubi magnetik, okpomọkụ, wdg). Nke atọ bụ iji mmetụta na-abụghị ahịrị iji nweta mgbanwe na nhazi ebili mmiri (lee optics na-abụghị ahịrị, mgbasa Raman kpaliri, okpukpu abụọ nke optical, oscillation parametric optical). Lasers nkịtị nke ụdị nhazi mbụ bụ laser agba, laser chrysoberyl, lasers etiti agba, laser gas nrụgide dị elu na laser excimer a na-emegharị emegharị.

Site n'echiche nke teknụzụ mmezu, a na-ekewa laser a na-agbanwe agbanwe n'ime: teknụzụ njikwa ugbu a, teknụzụ njikwa okpomọkụ na teknụzụ njikwa igwe.
N'ime ha, teknụzụ njikwa eletrọnịkị bụ iji nweta nhazi ogologo oge site na ịgbanwe ọkụ injection, yana ọsọ nhazi ọkwa NS, bandwidth nhazi sara mbara, mana obere ike mmepụta, dabere na teknụzụ njikwa eletrọnịkị ọkachasị SG-DBR (ntụgharị grating DBR) na laser GCSR (njikọ njikọ ntụziaka azụ-ntụgharị). Teknụzụ njikwa okpomọkụ na-agbanwe ogologo oge mmepụta nke laser site na ịgbanwe index refractive nke mpaghara laser na-arụ ọrụ. Teknụzụ ahụ dị mfe, mana ọ dị nwayọ, enwere ike ịgbanwe ya na obosara band dị warara nke naanị nm ole na ole. Ndị bụ isi dabere na teknụzụ njikwa okpomọkụ bụLaser DFB(nzaghachi ekesara) na DBR laser (Distributed Bragg reflection). Njikwa igwe dabere na teknụzụ MEMS (micro-electro-mechanical system) iji mezue nhọrọ nke ogologo ebili mmiri, yana nnukwu bandwidth a na-agbanwe agbanwe, ike mmepụta dị elu. Isi ihe owuwu dabere na teknụzụ njikwa igwe bụ DFB (nzaghachi ekesara), ECL (laser oghere mpụga) na VCSEL (laser oghere kwụ ọtọ na-ewepụta elu). A kọwara ihe ndị a site na akụkụ ndị a nke ụkpụrụ nke laser a na-emegharị emegharị.

Ngwa nkwukọrịta anya

Laser a na-agbanwe agbanwe bụ ngwaọrụ optoelectronic dị mkpa n'ọgbọ ọhụrụ nke sistemụ multiplexing nkewa ogologo ebili mmiri na mgbanwe foton na netwọk anya niile. Ojiji ya na-eme ka ikike, mgbanwe na nhazi nke sistemụ nnyefe eriri optical dịkwuo elu nke ukwuu, ma mepụta nhazi na-aga n'ihu ma ọ bụ nke na-aga n'ihu n'ọtụtụ ogologo ebili mmiri.
Ụlọ ọrụ na ụlọ ọrụ nyocha gburugburu ụwa na-akwalite nnyocha na mmepe nke laser a na-agbanwe agbanwe, a na-enwekwa ọganihu ọhụrụ mgbe niile n'ọhịa a. A na-emeziwanye arụmọrụ nke laser a na-agbanwe agbanwe mgbe niile ma na-ebelata ọnụ ahịa ya mgbe niile. Ugbu a, a na-ekewa laser a na-agbanwe agbanwe n'ime ụdị abụọ: laser a na-agbanwe agbanwe semiconductor na laser fiber a na-agbanwe agbanwe.
Laser semiconductorbụ isi iyi ọkụ dị mkpa na sistemụ nkwukọrịta anya, nke nwere njirimara nke obere nha, ibu dị mfe, arụmọrụ ntụgharị dị elu, nchekwa ike, wdg, ma dị mfe inweta njikọta optoelectronic otu chip na ngwaọrụ ndị ọzọ. Enwere ike kewaa ya n'ime laser nzaghachi nke a na-agbanwe agbanwe, laser enyo Bragg nke kesara, sistemụ micromotor oghere dị larịị nke na-ewepụta laser na laser semiconductor oghere mpụga.
Mmepe nke laser eriri a na-agbanwe agbanwe dị ka ihe na-eme ka ihe na-agbanwe agbanwe na mmepe nke diode laser semiconductor dị ka isi iyi mgbapụta emeela ka mmepe nke laser eriri dịkwuo elu. Laser a na-agbanwe agbanwe dabere na bandwidth gain 80nm nke eriri doped, a na-agbakwụnyekwa ihe nzacha na loop iji chịkwaa ogologo lasing ahụ ma mezuo nhazi ogologo ebili mmiri.
Mmepe nke laser semiconductor a na-agbanwe agbanwe na-arụ ọrụ nke ọma n'ụwa, ọganihu dịkwa ngwa ngwa. Ka laser ndị a na-agbanwe agbanwe na-abịarukwu laser ndị a kapịrị ọnụ n'ihe gbasara ọnụ ahịa na arụmọrụ, a ga-eji ha eme ihe karịa na sistemụ nkwukọrịta ma rụọ ọrụ dị mkpa na netwọk anya niile n'ọdịnihu.

Atụmatụ mmepe
E nwere ọtụtụ ụdị laser a na-agbanwe agbanwe, nke a na-emepụtakarị site n'iwebata usoro nhazi ogologo oge dabere na ụdị laser dị iche iche nke otu-wavelength, a na-enyekwa ụfọdụ ngwaahịa n'ahịa mba ụwa. Na mgbakwunye na mmepe nke laser a na-agbanwe agbanwe na-aga n'ihu, a kọkwara na laser a na-agbanwe agbanwe nwere ọrụ ndị ọzọ agbakwunyere, dị ka laser a na-agbanwe agbanwe nke ejiri otu chip nke VCSEL na modulator a na-etinye eletriki, na laser a na-etinye na ihe nlele grating Bragg reflector na semiconductor optical amplifier na modulator a na-etinye eletriki.
Ebe ọ bụ na a na-eji laser a na-agbanwe agbanwe nke ukwuu, enwere ike itinye laser a na-agbanwe agbanwe nke ụdị dị iche iche na sistemụ dị iche iche, nke ọ bụla nwekwara uru na ọghọm. Enwere ike iji laser semiconductor oghere dị n'èzí dị ka isi iyi ọkụ a na-agbanwe agbanwe na ngwa nnwale ziri ezi n'ihi ike mmepụta ya dị elu na ogologo ebili mmiri a na-agbanwe agbanwe na-aga n'ihu. Site n'echiche nke njikọta photon na izute netwọk anya niile n'ọdịnihu, ihe nlele grating DBR, grating superstructured DBR na laser a na-agbanwe agbanwe nke ejikọtara ya na modulators na amplifiers nwere ike ịbụ isi iyi ọkụ a na-agbanwe agbanwe maka Z.
Laser eriri a na-agbanwe agbanwe nke nwere oghere dị n'èzí bụkwa ụdị isi iyi ọkụ na-ekwe nkwa, nke nwere nhazi dị mfe, obosara ahịrị dị warara na njikọ eriri dị mfe. Ọ bụrụ na enwere ike itinye modulator EA n'ime oghere ahụ, enwere ike iji ya dị ka isi iyi soliton optical dị elu nke a na-agbanwe agbanwe. Na mgbakwunye, laser eriri a na-agbanwe agbanwe nke dabere na laser eriri emeela nnukwu ọganihu n'afọ ndị na-adịbeghị anya. A pụrụ ịtụ anya na arụmọrụ nke laser a na-agbanwe agbanwe na isi iyi ọkụ nkwukọrịta anya ga-aka mma, òkè ahịa ga-abawanye nwayọ nwayọ, yana atụmanya ngwa dị mma.