Gịnị bụ laser modulation technology

Gịnị bụmodul laserteknụzụ

Ìhè bụ ụdị ebili mmiri electromagnetic nwere ugboro dị elu. Ọ nwere ezigbo nkwekọ, yabụ, dị ka ebili mmiri elektrọnik gara aga (dị ka redio na igwe onyonyo), enwere ike iji dị ka onye na-ebufe ozi. Ozi "ebu" nke laser (gụnyere asụsụ, ederede, ihe oyiyi, akara, wdg) na-ezigara onye nata ya site na ọwa mgbasa ozi ụfọdụ (ikuku, eriri anya, wdg), wee chọpụta ma weghachite na ozi mbụ site na onye na-anata anya. Usoro nke itinye ozi na laser ka a na-akpọ modulation, ngwaọrụ na-arụzu usoro a ka a na-akpọ modulator. N'ime ha, a na-akpọ laser na-ebu ibu; Ozi dị ala nke na-arụ ọrụ nchịkwa ka a na-akpọ mgbama emezigharị.

Enwere ike kewaa ngbanwe nke laser ka ọ bụrụ ngbanwe nke ime na mgbanwe mpụga.

Mgbanwe dị n'ime: Ọ na-ezo aka na ntinye nke akara modulated n'oge usoro oscillation laser, ya bụ, iji akara ngosi agbanwe agbanwe agbanwe oscillation paramita nke laser, si otú ahụ na-agbanwe àgwà mmepụta laser iji nweta modulation. Ụzọ nke ime mgbanwe n'ime gụnyere: 1. Na-achịkwa ọkụ ọkụ ọkụ laser kpọmkwem iji nweta ike nke modulated mmepụta laser. Ike na ọnụnọ nke mmepụta ihe niile na-achịkwa ọkụ ọkụ. Ọ bụrụ na a na-eji akara ngosi a ga-ebufe iji chịkwaa ọkụ ọkụ laser, na-eme mgbanwe dị ugbu a site na laser nke mgbaàmà na-achịkwa, mgbe ahụ, a ga-ejikwa akara ngosi na-achịkwa laser na-emepụta ihe. 2. A na-etinye ihe ndị na-agbanwe agbanwe n'ime oghere resonant, na njirimara anụ ahụ nke ihe ndị na-emepụta ihe na-achịkwa site na akara mgbanwe, si otú ahụ na-agbanwe ihe dị iche iche nke oghere resonant na-agbanwe àgwà mmepụta laser iji nweta modulation. Uru nke ime mgbanwe n'ime bụ arụmọrụ modulation ya dị elu. Ihe ndọghachi azụ bụ na ebe ọ bụ na a na-etinye modulator n'ime oghere ahụ, ọ dị ka ịba ụba n'ime oghere ahụ, na-ebelata ike mmepụta, na bandwit nke modulator na-ejedebe site na passband nke oghere resonant.

Mgbanwe nke mpụga: Ọ na-ezo aka na ntinye nke modulator n'okporo ụzọ anya n'èzí laser mgbe emechara laser, na njirimara anụ ahụ nke modulator na-agbanwe site na mgbama modulation. Mgbe laser gafere na modulator, a ga-agbanwe ụfọdụ oke nke ebili mmiri ọkụ. Uru nke ngbanwe nke mpụga bụ na ọ naghị emetụta ike mmepụta nke laser na bandwit nke generator anaghị ejedebe na passband nke oghere resonant. Ihe ndọghachi azụ bụ arụmọrụ modulation dị ala.

Enwere ike ekewa modul laser n'ime njupụta modulation, modulation ugboro, modulation nke oge na mgbanwe ike, wdg dịka ọdịdị mgbanwe ya si dị. Ndị modulators nkịtị dabara na-agụnyeusoro modulators, ike modulators, wdg. E wezụga nke a kpọtụrụ aha n'elu electro-optic ike modulation na electro-optic frasi modulation, E nwere ọtụtụ ụdị nke.laser modulators, dị ka transverseelectrooptic modulators, Ndị na-emegharị ebili mmiri na-agagharị agagharị, Kerr electro-optic modulators, acousto-optic modulators, magneto-optic modulators, nnyonye anya modulators na spatial ìhè modulators, wdg.