Ingufu za Pulse ya Er: Ikirahure cya Laser

Mu bijyanye no gupima imirasire ya laser, imiterere yayo, na LiDAR, Er: Glass laser transmitters zakoreshejwe cyane muri mid-infrared solid-state lasers bitewe n'umutekano wazo mwiza w'amaso n'imiterere yayo mito. Mu bipimo byazo by'imikorere, ingufu za pulse zigira uruhare runini mu kumenya ubushobozi bwo kumenya, uburyo bwo gupima uburebure bw'amajwi, ndetse n'uburyo sisitemu ikora muri rusange. Iyi nkuru itanga isesengura ryimbitse ry'ingufu za pulse za Er: Glass laser transmitters.

1. Ingufu z'imitsi ni iki?

Ingufu z'imitsi yerekeza ku ngano y'ingufu zitangwa na laser muri buri mitsi, akenshi zipimirwa muri millijoule (mJ). Ni umusaruro w'ingufu nyinshi n'igihe umutsi umara: E = P_agasozi×τAho: E ni ingufu z'imitsi, P_agasozi ni imbaraga y'agahebuzo,τ ni ubugari bw'umutima.

Ku birahuri bisanzwe bya Er: Ikirahure bikora kuri 1535 nm—uburebure bw'umurambararo mu gice cya mbere cy'amaso—imbaraga nyinshi zo gukanda zishobora kugerwaho mu gihe habungabungwa umutekano, bigatuma ziba nziza cyane mu gutwara no hanze.

2. Impanuka zingufu za Er: Ikirahure

Bitewe n'igishushanyo, uburyo bwo kuvoma, n'uburyo buteganyijwe gukoreshwa, imashini zitanga ingufu za laser ya Er:Ikirahure zitanga ingufu zo gukubita k'umuvuduko umwe kuva kuri mikorojouli icumi (μJ) kuri mililijoule nyinshi (mJ).

Muri rusange, Er: Ibyuma byo kohereza lazeri bikoreshwa muri module ntoya bifite ingufu za pulse zingana na 0.1 kugeza kuri 1 mJ. Ku bakoresha ikoranabuhanga ryo kure, ubusanzwe hakenewe 5 kugeza kuri 20 mJ, mu gihe sisitemu za gisirikare cyangwa iz'inganda zishobora kurenza 30 mJ, akenshi zigakoresha imiterere y’inkoni ebyiri cyangwa iy’ibice byinshi kugira ngo zigere ku musaruro mwinshi.

Ingufu nyinshi z'umutima muri rusange zituma habaho imikorere myiza yo kumenya, cyane cyane mu bihe bigoye nko kugaruka kw'amajwi mu buryo budakomeye cyangwa kubangamira ibidukikije mu ntera ndende.

3. Ibintu bigira ingaruka ku ngufu z'imitsi

①Imikorere y'Isoko rya Pompe

Er:Laser z'ikirahure zikunze gukoreshwa na diode za laser (LDs) cyangwa amatara ya flash. LD zitanga imikorere myiza kandi iciriritse ariko zisaba uburyo bwo kugenzura ubushyuhe n'imikorere y'uruziga.

②Ingano y'imiti ikoreshwa mu gukaraba no kureshya kw'inkoni

Ibikoresho bitandukanye byo kwakira ibinyabutabire nka Er:YSGG cyangwa Er:Yb:Ikirahure biratandukanye mu rwego rwabyo rwo gukoresha imiti igabanya ubukana kandi bikagira uburebure bunini, bigira ingaruka ku buryo butaziguye ku bushobozi bwo kubika ingufu.

③Ikoranabuhanga ryo Guhindura Q

Guhindura Q mu buryo butaziguye (urugero, hamwe na kristu za Cr:YAG) byoroshya imiterere ariko bitanga uburyo bwo kugenzura budahagije. Guhindura Q mu buryo butaziguye (urugero, hamwe na selile za Pockels) bitanga ubushobozi bwo gutuza no kugenzura ingufu.

④Imicungire y'ubushyuhe

Ku ngufu nyinshi z'umuvuduko w'amashanyarazi, gukwirakwiza neza ubushyuhe buva kuri laser rod n'imiterere y'igikoresho ni ingenzi kugira ngo umusaruro ukomeze kandi urambe.

4. Guhuza Ingufu z'Impeshyi n'Ikoreshwa ry'Ibintu

Guhitamo Er: Ikirahure cyo kohereza ikirahure gikwiye biterwa cyane n'ikoreshwa ryacyo. Hasi hari ingero zimwe na zimwe zikoreshwa cyane n'inama zijyanye n'ingufu z'ingufu zikoreshwa:

①Imashini zifata intoki za laser

Ibiranga: gupima buhoro, imbaraga nke, gupima ahantu hagufi cyane

Ingufu zisabwa mu gutera ibihaha: 0.5–1 mJ

②Gukurikirana UAV / Kwirinda Inzitizi

Ibiranga: intera iri hagati kugeza kure, igisubizo cyihuse, yoroheje

Ingufu zisabwa mu gutera ibihaha: 1–5 mJ

③Abashushanya intego za gisirikare

Ibiranga: kwinjira cyane, kurwanya cyane kubangamira, ubuyobozi bwo gutera intera ndende

Ingufu zisabwa mu gutera ibihaha: 10–30 mJ

④Sisitemu za LiDAR

Ibiranga: ubwiyongere bwo gusubiramo ibintu bwinshi, gushakisha cyangwa gukora igicu cy'amakuru

Ingufu z'ingufu zisabwa: 0.1–10 mJ

5. Ingendo z'ejo hazaza: Ingufu nyinshi n'ibipfunyika bito

Bitewe n’iterambere rikomeje mu ikoranabuhanga ryo gukoresha indorerwamo mu birahuri, imiterere ya pompe, n’ibikoresho bishyuha, Er: Glass laser transmitters irimo gutera imbere igana ku guhuza ingufu nyinshi, umuvuduko wo gusubiramo mwinshi, no gukora miniaturization. Urugero, sisitemu zihuza amplification y’ibice byinshi hamwe n’imiterere ya Q-switched ubu zishobora gutanga arenga 30 mJ kuri buri pulse mu gihe zigumana imiterere mito.—ni nziza cyane mu gupima kure no mu buryo bwizewe cyane.

6. Umwanzuro

Ingufu za Pulse ni ikimenyetso cy'ingenzi cy'imikorere yo gusuzuma no guhitamo imashini zitanga imiyoboro ya laser ya Er:Ikirahure hashingiwe ku bisabwa mu ikoreshwa. Uko ikoranabuhanga rya laser rikomeza gutera imbere, abakoresha bashobora kugera ku musaruro mwinshi w'ingufu no gukoresha ibikoresho bito kandi bikoresha ingufu nke. Ku bikoresho bisaba imikorere miremire, umutekano w'amaso, no kwizera imikorere, gusobanukirwa no guhitamo urwego rukwiye rw'ingufu za pulse ni ingenzi cyane kugira ngo sisitemu irusheho gukora neza kandi igire agaciro.

Niba'Turashaka imashini zitanga imirasire ya laser ya Er:Ikirahure zifite imikorere myiza, twandikire. Dutanga ubwoko butandukanye bufite imiterere y’ingufu za pulse kuva kuri 0.1 mJ kugeza hejuru ya 30 mJ, zikwiriye gukoreshwa mu buryo butandukanye mu gupima imirasire ya laser, LiDAR, no mu buryo bwo kugena intego.