Incamake y'ikoranabuhanga rya laser modulator

Incamake y'ikoreshwa rya lasermodulatorikoranabuhanga
Laser ni umuraba wa electromagnetic ukoresha frequency yo hejuru, bitewe n'uko uhuza neza, nk'imiraba isanzwe ya electromagnetic (nk'iyo ikoreshwa muri radiyo na televiziyo), nk'umuraba utwara amakuru kugira ngo wohereze amakuru. Uburyo bwo gushyira amakuru kuri laser bwitwa modulation, kandi igikoresho gikora iki gikorwa cyitwa modulator. Muri iki gikorwa, laser ikora nk'umuraba utwara amakuru, mu gihe ikimenyetso cy'umuraba muto wohereza amakuru cyitwa ikimenyetso cya modulated.
Ubusanzwe modulation ya laser igabanyijemo modulation y'imbere n'iy'inyuma mu buryo bubiri. Modulation y'imbere: yerekeza ku modulation mu nzira yo kuzunguruka kwa laser, ni ukuvuga, guhindura ikimenyetso kugira ngo gihindure ibipimo byo kuzunguruka kwa laser, bityo bigira ingaruka ku miterere y'umusaruro wa laser. Hari uburyo bubiri bwo guhindura imbere: 1. Kugenzura mu buryo butaziguye ingufu zitangwa na laser kugira ngo uhindure ubukana bw'umusaruro wa laser. Ukoresheje ikimenyetso kugira ngo ugenzure umuyoboro w'amashanyarazi wa laser, imbaraga zitangwa na laser zishobora kugenzurwa n'ikimenyetso. 2. Ibintu bishyirwa muri resonator, kandi imiterere y'ibi bintu bikoreshwa muri modulation igenzurwa n'ikimenyetso, hanyuma ibipimo bya resonator bigahindurwa kugira ngo hagerwe ku musaruro wa laser. Akamaro ko guhindura imbere ni uko imikorere myiza ya modulation ari myinshi, ariko ikibi ni uko kubera ko modulator iri mu mwobo, izongera igihombo mu mwobo, igabanye imbaraga zisohoka, kandi bandwidth ya modulator nayo izagenzurwa n'umurongo unyuraho wa resonator. Guhinduranya isura y'inyuma: bivuze ko nyuma yo gukora kwa laser, modulator ishyirwa ku nzira y'urumuri hanze ya laser, kandi imiterere y'umubiri wa modulator ihinduka hamwe n'ikimenyetso cyahinduwe, kandi iyo laser inyuze muri modulator, parametre runaka y'urumuri rw'izuba izahindurwa. Ibyiza byo guhinduranya isura y'inyuma ni uko imbaraga zo gusohora za laser zitabangamirwa kandi umurambararo w'umuyoboro w'amashanyarazi ntugengwa n'umurongo w'inzira wa resonator. Imbogamizi ni ubushobozi buke bwo guhinduranya isura.
Uburyo bwo guhinduranya imirasire ya laser bushobora kugabanywamo modulation ya amplitude, modulation ya frequency, modulation ya phase na intensity modulation bitewe n'imiterere yayo. 1, modulation ya amplitude: modulation ya amplitude ni oscillation aho amplitude y'icyuma gitwara ihinduka hakurikijwe itegeko ry'ikimenyetso cyahinduwe. 2, modulation ya frequency: guhindura ikimenyetso kugira ngo gihindure frequency ya oscillation ya laser. 3, modulation ya phase: guhindura ikimenyetso kugira ngo gihindure quase ya laser oscillation.

Modulator y'imbaraga za Electro-optical
Ihame ryo guhindura imbaraga za electro-optic ni ugukoresha uburyo ingufu zihinduka hakurikijwe ihame ryo kubangamira urumuri rwa polarized hakoreshejwe electro-optic effect ya crystal. Ingaruka za electro-optical za crystal zigira ingaruka z'uko imiterere y'urumuri rwa crystal ihinduka bitewe n'imikorere y'amashanyarazi yo hanze, bigatuma habaho itandukaniro hagati y'urumuri runyura muri crystal mu byerekezo bitandukanye bya polarized, bityo imiterere ya polarized y'urumuri ihinduka.

Modulator y'itsinda rya Electro-optique
Ihame ry'ihindagurika ry'icyiciro cya Electro-optical: Ingano y'icyiciro Ingano y'ihindagurika rya laser ihinduka bitewe n'itegeko ryo guhindura ikimenyetso.

Uretse uburyo bwavuzwe haruguru bwo guhindura imbaraga za electro-optic na electro-optic phase modulation, hari ubwoko bwinshi bwa laser modulator, nka transverse electro-optic modulator, electro-optic traveling wave modulator, Kerr electro-optic modulator, acousto-optic modulator, magnetooptic modulator, interference modulator na spatial light modulator.