Mukati memakore gumi apfuura, nekuenderera mberi kwekuvandudza kwepombi sosi uye laser chimiro, fiber laser tekinoroji yakavandudza zvakanyanya. Kubva pane doped optical fiber (YDF-Laser) inoshandiswa zvakanyanya mumaindasitiri, tsvakiridzo yesainzi, nezvimwewo nekuda kwepamusoro pemagetsi-optical shanduko inoshanda, nani danda kunaka uye kugadzikana.
Fig1. Spectral absorption rate yemhando dzakasiyana dzesimbi
Mazuva ano epamusoro-simba-single-modhi faibha lasers ave nenguva achikwanisa kushandisa dhijitari KW-level optical simba kubuda, izvo zvinogadzira lasers akadaro mumunda wesimbi kugadzirisa. Pasi pemamiriro emagetsi emagetsi akafanana, nekuda kwechiyero chakasiyana chekunyura, iyo 1 micron fiber laser yakavakirwa pafiber yevakuru inovandudzwa zvakanyanya kana CO2 laser yegumi mamicrons inoshanda kupfuura simbi zvinhu. Fig. Iyo simbi zvinhu zviri pachena kuti yakasimba kudarika yakabuda wavelength ingangoita 1070 nm hukama neinobuda wavelength yeCO2 laser paCO2 laser pa10.6um. Kunyanya, mwero wekunyudzwa kwesimbi pasi pe1070 nm wavelength ingangoita ka6 kuderera pane iyo 10.6um wavelength mamiriro.
Fig 2. Relative absorption of aluminosilicate uye phosphosilicate (YB) faibha pa800-1100 nm spectrum.
Nekuti iyo yakasanganiswa optical fiber ine yakasimba kwazvo yekunyudza hunhu hwe976 nm uye 915 nm wavelength, akadaro lasers anonyanya kupomba ne semiconductor laser (LD) inoburitsa iyo yavelength iri pamusoro. Fig 2 ndeye maviri akajairwa doped optical fibers kune hukama hwekunyura mazinga e800 kusvika 1100 nm spectroscopy, uye kune yakakosha ficha yekunyudza peak padhuze ne915 nm uye 976 nm. Mwero wekunyudzwa kwe976nm chiedza masaisai mualuminosilicate dumping fiber ingangoita katatu mwenje wave we915 nm, uye mwero wekunyudzwa kweyaimbova muphosphosilicate ingangoita kashanu yekupedzisira. Kukanganisa kwakadaro kwakasiyana, zvichireva kuti lasers akadaro anotora 976nm LD pombi tekinoroji kuti iwane yakakwirira mwenje-Optical shanduko inoshanda. Panguva imwecheteyo, kunyura kwepamusoro kunorevawo kudzikisa kureba kwefiber, nekudaro kudzikamisa zvinokuvadza zvisingaite kune imwe nhanho.
Fig.3 Curve yePhoton Dinoff (PD) Kurasika Kwekasiyana YB Ion Energy Matanho.
Parizvino, hombe-kuita isingawanzo pasi doped fiber lasers inoda kutarisana nezvinetso zvephotodational. Dambudziko iri rinokonzera kudzikira kwakanyanya kwesimba rekubuda relaser, kugadzikana uye hupenyu hwekushanda. Photon Rima Chiitiko chacho chinoshumwawo mune nhamba huru yeion-doped fiber lasers. Zvinowanzofungidzirwa kuti chiitiko ichi chinokonzerwa ne-color-center inogadzirwa mugirazi matrix. Zvidzidzo zvakapfuura zvakakurudzira nzira yakawanda inogoneka yekugadzirisa iyi photon dacte, kusanganisira co-doped phosphorous mufiber, uchishandisa 405 nm laser, photobleaching, kunyangwe kushandisa tembiricha yepamusoro, annealing yephoton decimensing yephoton inoitika. . Pakati pavo, kunyange zvazvo phosphorus inogona kudzvinyirirwa zvinobudirira, kurasikirwa kwemashure uye nhamba yekuvhara inowedzerwa.
Zvidzidzo zvakapfuura zvechikwata cheKoponen, paphoton yakasviba zvakaratidza kuti kukurumidza kwekutora photon kunotsamira zvakanyanya pakusangana kwezvipembenene zvinokurudzira, inova simba rekuchinja kweion (YB Inversion Rate). Vakaona kuti maphoton ekutora mareti aive akaenzana ne7 nguva muiyo ionic simba reversal rate. A curve ye photon intiminated kurasikirwa nekufamba kwenguva muFig 3 muFig 3 inopiwa muFig 3. Iyo data inonyanya kunzwisisika kuti photon rima chiyero chinowedzera zvakanyanya nekuwedzera kwekugadzirisa simba.
Fig 4, YB Ion Energy Reverse Rate SePump Power Shandura Curve iri pasi pe976 Nm uye 920 NM Pump Condition (Fungidzira kuti reversal rate data inotsvedzerera zvakakwana kana musiyano uri pasi pe1%).
Iyo simba renyika inodzoserwa mwero muiyo doped fiber inokanganiswa nehuremu hwefayibha, simba repombi, mhinduro yechiedza, uye kureba kwepombi mwenje wavelength. Yakakodzera pombi chiedza wavelength inogona kunyanya kudzvinyirirwa kusvika pamwero mukuru. Kudzoserwa kwesimba-nyika kunotsanangurwa sereshiyo yekunyura kwefotonic ine imwechete emission cross chikamu pane imwe pombi light wavelength, uyezve simba reiyo doped fiber rinowanikwa pasi pemapombi maviri emwenje mamiriro e976 nm uye 920 nm. Chiyero chekudzosera chinosiyana nekuchinja kwesimba repombi (Fig 4). Kunyangwe iwo maabsorption spectrum muFIG 2 muFiG 2 yekutanga inoratidza kuti kunyura kwe976nm wavelength mwenje kusimba zvakanyanya kupfuura mamwe mawavelength, asi nekuda kwekuti 976 nm wavelength mwenje yakakura, inozowanikwa nechiedza chepombi kupfuura mukati. 920 nm. Simba rakaderera mumamiriro ezvinhu rakaderera. Kunyangwe iyo data isina zvakananga kupa simba renyika reversal ye915 nm pombi, zvaive zvichiri kugona kufungidzira kuti 976nm pombi light source ine yakasimba anti-optical sub-profiling inogona kupfuura yekare.
Kunyangwe iyo 976nm pombi nzira ine yakanyanya kunyura mwero uye chiedza kutendeuka kushanda zvakanaka, inogona kunyatso kudzikisa kureba kwekuwana fiber, uye inokuvadza photon canache effect inogona kuderedzwa, asi inoenderana ne915 nm pombi modhi pane fiber kurapwa uye coupling. . Unyanzvi hwakanyanya kuoma. Uyezve, kunyura kwefiber yakasanganiswa mu976 nm renji yakatetepa. Iko kushanduka kwewavelength kunokonzerwa nekushanduka kwekushisa kwepombi sosi kunogona kukonzera kuti laser inobuda simba isagadzikane, uye iyi tekinoroji yepombi ine yakanyanya kusimba chinodiwa che laser's thermal management system. Nekuda kweizvi, vashoma chete vanogadzira laser vakaita seGermany IPG, United States Coherent-Rofin, uye US GW nevamwe vagadziri vanoshandisa 976 nm pombi sosi mumakuru-maindasitiri lasers.
Nguva yekutumira: Jul-27-2021