Nhasi, isu tinosuma "monochromatic" laser kune yakanyanyisa - yakatetepa mutsara laser. Kubuda kwayo kunozadza minda muminda yakawanda yekushandisa yeLaser, uye mumakore achangobva kushandiswa kwakawanikwa nekukasira, mimwe minda, iyo iri "iri" iyo isingagone kupedzwa chete nekuvandudza laser simba.
Chii chakatetepa mutsara laser?
Izwi rekuti "mutsara wakaringana" rinoreva kuti rondedzero yemutsara wehurefu mune frequency domain, iyo inowanzo kuve yakaenzana nehafu-peak yakazara upamhi (fwhm). Iyo Linewidth inonyanya kukanganiswa neyekunyoreswa radiation yematomu anofara kana ion, shini yekuchinjisa, tembiricha yejitorator, tembiricha jitter uye zvimwe zvinhu zvekunze. Izvo zvidiki kukosha kwemutsara wehupamhi, yakakwira kuchena kweiyo spectrum, ndiko kuti, iri nani monochromaticity ye laser. Lasers ane hunhu hwakadaro kazhinji kazhinji ane chikamu chidiki diki kana huwandu hwehuwandu uye hushoma hushoma huwandu hwehuwandu. Panguva imwecheteyo, zvidiki zvakabatana zvakabatana kukosha kweiyo Laser, iyo yakasimba kuenderana kwekubatana kunoenderana, iyo inoratidzwa seyakareba zvakanyanya kuwanda.
Kuziva uye kushandiswa kwetambo yakatetepa laser
Limited neyakawana mari yekuita mutsara wekushanda kweiyo laser, zvinokwanisika kuti uzive zvakananga kubudiswa kwemutsara wetsimbe Kuti uzive mashandiro emutsara wetsimbe Muchiitiko ichi, zvinowanzo kuve zvakafanira kudzora pesvedzero yerudzi pane laser kubuda, uye kuderedza iyo yekuwedzera kwemitsetse inokonzerwa neyakagadziriswa uye tembiricha shanduko yenzvimbo dzekunze; Panguva imwecheteyo, inogona zvakare kusanganiswa nekuongororwa kwechikamu kana frequency ruzha rwekuwedzera kwekunzwisisa sosi yeiyo laser, kuitira kuti uwane yakagadzikana kubuda kweiyo yakatetepa mutsara laser.
Ngatitarisei tarisiro yekuziva kwetsimbe mutsara wekushanda kwemapoka akati wandei akasiyana.
Semiconductor lasers ane zvakanakira saizi yemuenzaniso, kunyatsobudirira, hupenyu hwakareba uye zvakanaka zvehupfumi.
Iyo Fabry-Perot (FP) Optical Resonator inoshandiswa mune yechinyakaresemiconductor lasersKazhinji oscilllates mulimiri-refu-refuitudinal mode, uye mutsara unoburitsa upamhi hwakaenzana, saka zvinodikanwa kuti uwedzere mhinduro yemhinduro kuti uwane iyo yakaburitswa mutsara wehurefu hwakatetepa.
Akaparadzirwa Mhinduro (DFB) uye akagoverwa Bragg Reflection (DBR) maviri akafanana emukati emukati optums mhinduro semiconductor lasers Nekuda kweiyo diki grating pitch uye yakanaka wavelength kusarudza, zviri nyore kuwana yakagadzikana imwe-frequency yakatetepa mutsara mutsara. Musiyano mukuru pakati pezvivakwa zviviri chinzvimbo cheGET: Iyo DFB chimiro chinowanzogovera mamiriro ezvekutungamira mumubhadharo wekuratidzira Mukuwedzera, dfb lasers shandisa zvakamanikidzwa zvigadziriso zvine yakaderera Refractive Index musiyano uye yakaderera yekuratidzira. DBR lasers shandisa maruva epasi neyekumusoro rextive index kusiyanisa uye kukwirisa kwepamusoro. Zvivakwa zvese zvine hombe yemahara spectral renti uye inogona kuita wavelength tuning isina mode kusvetuka mune vashoma nanometers, uko iyo dBr laser ine yakajeka tuning renji pane iyoDfb laser. Uye zvakare, iyo yekunze Cavity Optical Feesbalogy, iyo inoshandisa ekunze zvinhu zvekupindura mwenje weSerse Chip
(2) fiber lasers
Fiber Lasers ine yakakwira pombi yekushandura, yakanaka gomba hunhu uye yakakwirira coupling yekudyidzana, ndiyo misoro inopisa yekutsvaga mumunda weLaser. Muchirevo chezera reZera, fiber lasers vane kuwirirana kwakanaka neazvino Optical fiber kutaurirana masisitimu mumusika. Iyo imwechete-inogara fiber ine zvakanakira nezvakanaka zvehupamati mutsara wehupamhi, ruzha rwekutarisa rwakava runyararo rwuri runyararo rwakakosha rwekusimudzira kwayo.
Imwechete refuitudinal mode yekushandisa ndiyo musimboti weiyo fiber laser kuti uwane iyo yakamanikidza mutsara wekutarisa Among them, the working principle of DFB and DBR single-frequency fiber lasers is similar to that of DFB and DBR semiconductor lasers.
Sezvinoratidzwa mumufananidzo 1, DFB fiber laser kunyora kugovera brag grating mu fiber. Nekuti iyo inoshanda wavelength yeiyo oscillator inokanganiswa neiyo fiber nguva, iyo nzira refuTinal inogona kusarudzwa kuburikidza nekuparadzaniswa kwemitemo yeiyo grating. Iyo Laser Resonator yeDBR Laser inowanzoumbwa neyefari yeFiber Bragging Gratings, uye imwe nzira yakareba yeLongitudinal inonyanya kusarudzwa neyekudzika bhendi uye yakaderera kuratidzwa fiber bratings. Nekudaro, nekuda kwekureba kwaro restator, kushaikwa kwehuwandu hwekusaremekedza mitezo, mhete-yakaumbwa cavity inowanzoita mitezo yemukati, uye zvakaoma kushanda zvine mwero mitezo yerefu yenguva kwenguva yakareba.
Mufananidzo 1, maviri akajairwa mutsara zvivakwa zvekusvikafiber lasers
Kutumira Nguva: Nov-27-2023