Uyu munsi, tuzamenyekanisha laser ya "monochromatic" ikabije - ngufi ya laser ya laser. Havuka kugaragara kwuzuza icyuho mu bice byinshi bya laser, kandi mu myaka yashize byakoreshejwe cyane mu gutahura imitako mikuru, lidar, hagamijwe gutumanaho gukurura, ni "ubutumwa" bushobora kurangira gusa mugutezimbere imbaraga za laser.
Ni ubuhe butumwa buke bwa laser?
Ijambo "umurongo ubugari" bivuga ubugari bwumurongo wa laser muri domaine domain, mubisanzwe bingana mubijyanye na kimwe cya kabiri-cyiminyururu yuzuye (FWHM). The linewidth is mainly affected by the spontaneous radiation of excited atoms or ions, phase noise, mechanical vibration of the resonator, temperature jitter and other external factors. Gitoya agaciro k'umurongo w'ubugari, ubwiza bwera bwa specrum, ni ukuvuga, ibyiza monopromatitity ya laser. Abakora bafite ibiranga mubisanzwe bafite icyiciro gito cyangwa urusaku rwinshi hamwe nijwi rito ugereranije. Muri icyo gihe, ntoya umurongo wumurongo agaciro ka laser, ikomeye cyane guhuza, bigaragarira nkuburebure burebure cyane.
Kumenya no gushyira mu bikorwa umurongo muto wa laser
Kugarukira ku nyungu zidasanzwe zidafite akazi ka laser, ntibishoboka rwose kumenya ibisohoka kuri laser transwidth yoroheje yo kwishingikiriza kuri oscillatle gakondo ubwayo. Kugirango umenye imikorere ya laser ya transew, mubisanzwe ikenewe kugirango ukoreshe muyunguruzi, gukomeretsa nibindi bikoresho kugirango uhitemo cyangwa uhitemo imbaraga zimaze kurengerwa cyangwa ngo uhitemo uburyo buke cyangwa bumwe gusa kuri osciturlation muri resenator ya laser. Muriki gikorwa, ni nkenerwa kenshi kugenzura ingaruka zurusaku kuri laser At the same time, it can also be combined with the analysis of phase or frequency noise spectral density to understand the source of noise and optimize the design of the laser, so as to achieve stable output of the narrow linewidth laser.
Reka turebe ko tumenyereye imikorere yo kunesha inyungu nyinshi zibyiciro byinshi bya laser.
Semiconductor Lasers ifite ibyiza byubunini bwingano, imikorere yo hejuru, uburebure nubukungu nubukungu.
Fabry-perot (FP) optator optique ikoreshwa muri gakondoSemiconductor lasersMubisanzwe oscillates muburyo bwinshi, hamwe nubugari bwumurongo urangiye ni ubugari, birakenewe rero kongera ibitekerezo bya optique kugirango ubone umusaruro wumurongo muto.
Ibitekerezo byatanzwe (DFB) no gukwirakwiza ibitekerezo bya Bragg (DBR) nibisanzwe bibiri byimbere byimbere Semiconductor. Bitewe na mato mato hamwe nuburebure bwiza bworoshye bwo guhitamo, biroroshye kugera ku gihira gito-inshuro ntoya ifunganye. Itandukaniro nyamukuru hagati yinzego zombi nimpano yo gusiga: Ubusanzwe imiterere ya DFB igabanya imiterere yinda yikubita muri renator, kandi renator yimiterere ya DRS imaze gukomera hamwe nukubona akarere ihuriweho nubuso bwimpera. Mubyongeyeho, DFB Lasers ikoresha ibyatsi byashyizwemo hamwe no kunyuranya hasi no gutandukanya ibintu bike. Abashakashatsi ba DBR bakoresha ibyatsi byo hejuru hamwe no kumvikana cyane no kwerekana cyane. Inzego zombi zifite urwego runini rwubusa kandi rushobora gukora uburebure butaringaniye nta mode ya Nanometero nkeya, aho dbr laser ifite intera yagutse kurutaDFB Laser. Byongeye kandi, umwobo wo hanze wibitekerezo bya optique, bikoresha ibintu bya optique byo hanze kugirango bigaragaze urumuri rusohoka rwa semiconductor larmiconductor chip hanyuma tugahitemo imikorere ya semiconductor ya Semiconductor ya Semiconductor ya Semiconductor ya Sermiconductor.
(2) abahirike ba fibre
Prober lasers ifite ppamp yo hejuru imikorere, ubwiza buhebuje hamwe nuburyo bukabije, niyo ngingo zishyushye mubushakashatsi mumirima ya laser. Mu rwego rw'amakuru imyaka, abahinze fibre bafite imyumvire myiza hamwe na sisitemu yo gutumanaho ya fibre iri ku isoko. Fiber imwe-fibre fibre hamwe nibyiza byumurongo muto, urusaku ruto kandi ubufatanye bwiza bwabaye kimwe mu byerekezo byingenzi byiterambere ryayo.
Igikorwa kimwe cya mireritudinal nuburyo bwa fibre laser kugirango igere kumurongo muto, mubisanzwe ukurikije imiterere ya fibre imwe ya fibre ya fibre, ubwoko bwa DRB hamwe nubwoko bwa DRB. Muri bo, ihame ry'akazi rya DFB na DRB fibre imwe ya fibre imwe isa n'iya DFB ya DFB na DBR semicUctor.
Nkuko bigaragara ku gishushanyo cya 1, DFB fibre laser nukwandika gukwirakwiza Bragg ufata fibre. Kuberako uburebure bwakazi bwa oscillator bwibasiwe nigihe cya fibre, uburyo bwa burebudinal burashobora gutoranywa binyuze mubitekerezo byatanzwe byo gukomera. Reser Resonator ya DBR yakozwe nubusanzwe ibyatsi bya fibre Bragg, kandi uburyo bumwe bumaze uburebure bwatoranijwe nitsinda rifunganye hamwe ninzira nyabagendwa fibre bragg. Ariko, kubera ubuvuzi burebure, imiterere igoye no kubura uburyo bwo kuvangura uburyo bwiza bwo kuvangura, gukomera-imyuka bikunze gukora, kandi biragoye gukora muburyo buhoraho muburyo burebure.
Igishushanyo 1, bibiri bisanzwe byumurongo wimibare imwefibre lasers
Igihe cyo kohereza: Nov-27-2023