Mmepe na ọnọdụ ahịa nke laser tunable Nkebi abụọ

Mmepe na ọnọdụ ahịa nke laser tunable (Nkebi nke abụọ)

Ụkpụrụ ọrụ nkelaser tunable

Enwere ụkpụrụ atọ dị mkpa maka ị nweta nlegharị anya n'ogologo ikuku laser. Ọtụtụndị na-ahụ maka lasersjiri ihe na-arụ ọrụ nwere ahịrị fluorescent sara mbara. The resonators nke mejupụtara laser nwere nnọọ obere mfu naanị n'elu a warara wavele ogologo nso. Ya mere, nke mbụ bụ ịgbanwe wavelength nke laser site n'ịgbanwe wavelength kwekọrọ na ala ọnwụ mpaghara nke resonator site ụfọdụ ọcha (dị ka a grating). Nke abụọ bụ ịgbanwee ọkwa ike nke mgbanwe laser site n'ịgbanwe ụfọdụ ihe mpụga (dị ka oghere magnetik, okpomọkụ, wdg). Nke atọ bụ iji mmetụta ndị na-adịghị na ntanetị iji nweta mgbanwe na ntugharị ogologo ogologo ogologo (lee anya ndị na-adịghị na ntanetị, mgbasa ozi Raman kpaliri, ugboro ugboro ugboro abụọ, oscillation anya parametric). Laser a na-ahụkarị nke ụdị nlegharị anya nke mbụ bụ lasers agba, chrysoberyl lasers, lasers etiti agba, lasers gas na-eme ka nrụgide dị elu na lasers excimer tunable.

A na-ekewa laser Tunable site n'echiche nke teknụzụ mmezu na-ekewa n'ime: teknụzụ njikwa ugbu a, teknụzụ njikwa okpomọkụ na teknụzụ njikwa igwe.
N'ime ha, teknụzụ njikwa eletrọnịkị bụ iji nweta nzigharị ogologo oge site n'ịgbanwe ịgbanye ugbu a, yana ọsọ ngbanwe ọkwa NS, bandwidth obosara, mana ike nrụpụta pere mpe, dabere na teknụzụ njikwa eletrọnị kacha SG-DBR (Sampling grating DBR) na GCSR laser (ntụgharị aka grating ntụzịaka njikọ azụ azụ-nlegharị anya). Nkà na ụzụ na-achịkwa okpomọkụ na-agbanwe ogologo oge mmepụta nke laser site n'ịgbanwe ntụgharị ntụgharị nke mpaghara laser na-arụ ọrụ. Teknụzụ ahụ dị mfe, mana ọ dị nwayọ, enwere ike idozi ya site na obosara eriri dị warara nke naanị nm ole na ole. Ndị isi dabere na teknụzụ njikwa okpomọkụ bụDFB laser(nzaghachi ekesara) na DBR laser (Ntụgharị uche Bragg ekesa). Mechanical akara na-tumadi dabeere MEMS (micro-electro-mechanical usoro) technology iji mezue nhọrọ nke wavelength, na nnukwu mgbanwe bandwit, elu mmepụta ike. Ihe owuwu ndị bụ isi dabere na teknụzụ njikwa igwe bụ DFB (nzaghachi ekesara), ECL (laser oghere mpụga) na VCSEL (oghere oghere na-emitting laser). A kọwara ihe ndị a site na akụkụ ndị a nke ụkpụrụ nke lasers tunable.

Ngwa nkwurịta okwu anya

Laser Tunable bụ isi ngwaọrụ optoelectronic n'ọgbọ ọhụrụ nke sistemu ịgbatị ogologo wavelength nkewa na mgbanwe foton na netwọkụ anya niile. Ngwa ya na-abawanye ikike, mgbanwe na scalability nke usoro nnyefe eriri anya, wee chọpụta na ọ na-aga n'ihu ma ọ bụ na-aga n'ihu n'iji ya gee ntị na oke ogologo ogologo ogologo.
Ụlọ ọrụ na ụlọ ọrụ nyocha gburugburu ụwa na-arụsi ọrụ ike na-akwalite nyocha na mmepe nke lasers tunable, a na-enwekwa ọganihu ọhụrụ na mpaghara a mgbe niile. A na-emeziwanye arụmọrụ nke lasers tunable mgbe niile na ọnụ ahịa na-ebelata mgbe niile. Ka ọ dị ugbu a, a na-ekewa lasers a na-atụgharị anya ụzọ abụọ: semiconductor tunable lasers na lasers fiber tunable.
Semiconductor laserbụ ìhè dị mkpa na usoro nkwurịta okwu ngwa anya, nke nwere njirimara nke obere nha, ịdị arọ dị arọ, nrụpụta mgbanwe dị elu, nchekwa ike, wdg, ma dị mfe iji nweta otu mgbawa optoelectronic ntinye na ngwaọrụ ndị ọzọ. Enwere ike kewaa ya n'ime laser nzaghachi nkesa nkesa, kesaa Bragg mirror laser, micromotor system vetikal cavity surface emitting laser na mpụga oghere semiconductor laser.
Mmepe nke eriri laser tunable dị ka ihe na-enweta ihe na mmepe nke semiconductor laser diode dị ka isi iyi mgbapụta akwalitela mmepe nke laser fiber. Laser a na-emegharị emegharị na-adabere na 80nm uru bandwit nke doped fiber, na ihe nzacha na-agbakwunyere na akaghị aka iji chịkwaa lasing wavelength na-aghọta na wavelength tuning.
Mmepe nke laser semiconductor na-arụsi ọrụ ike na ụwa, ọganihu na-adịkwa ngwa ngwa. Dị ka lasers tunable ji nwayọọ nwayọọ na-abịaru nso ofo wavelength lasers n'ihe na-eri na arụmọrụ, a ga-apụghị izere ezere na-eji ọzọ na ndị ọzọ na usoro nkwurịta okwu ma na-arụ ọrụ dị mkpa na-eme n'ọdịnihu All-optical netwọk.

Atụmanya mmepe
Enwere ọtụtụ ụdị lasers a na-emegharị emegharị, nke a na-etolite site na iwebata usoro nlegharị anya ogologo ogologo na-adabere na lasers dị iche iche nke otu ogologo ogologo, na ụfọdụ ngwa ahịa ewebatala n'ahịa mba ụwa. Na mgbakwunye na mmepe nke laser ngwa anya na-aga n'ihu na-aga n'ihu, a kọwokwa kọwapụta lasers nke nwere ike ịrụ ọrụ ndị ọzọ, dị ka laser Tunable jikọtara ya na otu mgbawa nke VCSEL na modulator absorption eletriki, yana laser jikọtara ya na grating Bragg reflector. na ihe nrịbama anya nke semiconductor na modulator absorption eletriki.
N'ihi na a na-eji laser a na-emegharị ogologo oge, a na-eji laser nke nwere ike ime ihe dị iche iche na usoro dị iche iche, na nke ọ bụla nwere uru na ọghọm. Enwere ike iji laser semiconductor oghere dị n'èzí dị ka isi iyi ọkụ na-ekpo ọkụ na-agba agba n'ime ngwa ule ziri ezi n'ihi ike mmepụta ya dị elu yana ogologo ogologo oge na-aga n'ihu. Site n'echiche nke njikọta foton na izute netwọọdụ ngwa anya niile nke ga-eme n'ọdịnihu, grating DBR, grating grating DBR na lasers tunable jikọtara ya na modulators na amplifiers nwere ike bụrụ ihe na-ekwe nkwa isi mmalite ọkụ maka Z.
Fiber grating tunable laser na mpụga oghere bụkwa ihe na-ekwe nkwa ụdị ọkụ, nke nwere usoro dị mfe, obosara ahịrị dị warara na njikọ eriri dị mfe. Ọ bụrụ na enwere ike ijikọ modulator EA n'ime oghere, enwere ike iji ya dị ka isi iyi soliton ngwa anya dị elu. Tụkwasị na nke ahụ, laser fiber lasers nke dabeere na fiber lasers enweela ọganihu dị ukwuu n'afọ ndị na-adịbeghị anya. Enwere ike ịtụ anya na arụmọrụ nke lasers tunable na isi mmalite ọkụ nkwurịta okwu ga-akawanye mma, na ahịa ahịa ga-eji nwayọọ nwayọọ na-abawanye, na atụmanya ngwa na-egbuke egbuke.