Nke mbụ, Mgbanwe ime na mgbanwe mpụga
Dịka mmekọrịta dị n'etiti modulator na laser si dị,mgbanwe laserenwere ike kewaa ya n'ime nhazi ime na nhazi mpụga.
Mgbanwe ime 01
A na-eme ihe ngosi mgbanwe n'usoro mmegharị laser, ya bụ, a na-agbanwe paramita nke mmegharị laser dịka iwu nke mgbaàmà mgbanwe si dị, ka e wee gbanwee njirimara nke mmepụta laser wee nweta mgbanwe.
(1) Na-achịkwa isi iyi mgbapụta laser ozugbo iji nweta mgbanwe nke ike laser mmepụta na ma ọ dị, ka ọkọnọ ike wee chịkwaa ya.
(2) A na-etinye ihe nhazi ahụ n'ime resonator, mgbanwe nke njirimara anụ ahụ nke ihe nhazi ahụ na-achịkwa site na mgbaàmà iji gbanwee paramita nke resonator, si otú a na-agbanwe njirimara mmepụta nke laser.
02 Mgbanwe mpụga
Mgbanwe mpụga bụ nkewa nke mmepụta laser na mgbanwe laser. Na-ezo aka na ibu nke mgbama modulated mgbe e guzobere laser ahụ, ya bụ, a na-etinye modulator n'okporo ụzọ anya dị n'èzí resonator laser ahụ.
A na-agbakwunye voltaji mgbaàmà modulation na modulator iji mee ka ụfọdụ njirimara anụ ahụ nke usoro modulator gbanwee, mgbe laser gafere ya, a na-agbanwe ụfọdụ paramita nke ebili mmiri ọkụ, si otú a na-ebu ozi a ga-ebufe. Ya mere, modulation mpụga abụghị ịgbanwe paramita laser, kama ọ bụ ịgbanwe paramita nke laser mmepụta, dị ka ike, ugboro, na ihe ndị ọzọ.
Nke abụọ,ihe na-eme ka laser modulator rụọ ọrụnhazi ọkwa
Dịka usoro ọrụ nke modulator si dị, enwere ike kewaa ya n'imemgbanwe elektrọ-optic, nhazi acoustooptic, nhazi magneto-optic na nhazi kpọmkwem.
01 Nhazigharị kpọmkwem
Ọsọ ụgbọ ala nkelaser semiconductorma ọ bụ diode na-ewepụta ìhè na-agbanwe ozugbo site na mgbaàmà eletriki, ka ìhè mmepụta wee gbanwee ya site na mgbanwe nke mgbaàmà eletriki.
(1) Mgbanwe TTL na nhazi kpọmkwem
A na-agbakwunye akara dijitalụ TTL na ọkọnọ ike laser, ka e wee nwee ike ijikwa ọkụ eletrik draịva laser site na mgbaàmà mpụga, wee nwee ike ijikwa ugboro mmepụta laser.
(2) Mgbanwe analog na nhazi kpọmkwem
Na mgbakwunye na akara ngosi analog nke ike laser (oke na-erughị 5V mgbanwe mgbaama mgbanwe aka ike), nwere ike ime ka ntinye mgbaama mpụga dị iche iche kwekọrọ na ọkụ eletrik draịva dị iche iche nke laser, wee chịkwaa ike laser mmepụta.
02 Mgbanwe elektrọnik
A na-akpọ mgbanwe site na iji mmetụta electro-optic modulation. Ntọala anụ ahụ nke mgbanwe electro-optic bụ mmetụta electro-optic, ya bụ, n'okpuru ọrụ nke ubi eletriki etinyere, ndeksi refractive nke ụfọdụ kristal ga-agbanwe, mgbe ebili mmiri ìhè gafere na usoro a, njirimara nnyefe ya ga-emetụta ma gbanwee.
03 Mgbanwe Acousto-optic
Isi ihe ndabere nke mgbanwe acousto-optic bụ mmetụta acousto-optic, nke na-ezo aka na ihe na-eme na ebili mmiri ìhè na-agbasa ma ọ bụ gbasaa site na ubi ebili mmiri karịrị akarị mgbe ọ na-agbasa na etiti ahụ. Mgbe ntinye ntụgharị nke etiti na-agbanwe mgbe niile iji mepụta grating refractive index, diffraction ga-eme mgbe ebili mmiri ìhè na-agbasa na etiti ahụ, ike, ugboro na ntụziaka nke ìhè diffractive ga-agbanwekwa ka mgbanwe nke mbara ebili mmiri nke a na-emepụta dị elu.
Mgbanwe Acousto-optic bụ usoro anụ ahụ nke na-eji mmetụta acousto-optic ebunye ozi na onye na-ebu ugboro ole optical. A na-arụ ọrụ mgbaama modulated na transducer electro-acoustic n'ụdị mgbaama eletriki (modulation amplitude), a na-agbanwekwa akara eletriki kwekọrọ na ya ka ọ bụrụ mpaghara ultrasonic. Mgbe ebili mmiri ìhè gafere na etiti acousto-optic, a na-agbanwe ihe na-ebu optical ma ghọọ ebili mmiri modulated siri ike nke na-ebu "ozi".
04 Mgbanwe ihunanya nke Magneto
Mgbanwe Magneto-optic bụ ojiji nke mmetụta ntụgharị anya elektrọnik nke Faraday. Mgbe ebili mmiri ìhè na-agbasa site na mpaghara magneto-optical nke dị ka ntụziaka nke ubi magnet, a na-akpọ ihe na-eme ka a na-atụgharị polarization plane nke ìhè linearly polarized rotation.
A na-etinye oghere magnetik na-adịgide adịgide na ihe na-eme ka ọ dị n'ime ...
Oge ozi: Jenụwarị-08-2024