Anan, tasirin hasarar attenuation da haɓaka aikin laser na Nd: YAG m yumbu an bincika.Yin amfani da 0.6 at.% Nd: YAG sandar yumbu tare da diamita 3 mm da tsayin 65 mm,Ƙididdigar watsawa da ƙaddamarwa a 1064 nm an auna su don zama 0.0001 cm-1 da 0.0017 cm-1, bi da bi.Don gwajin Laser na gefe na 808 nm, matsakaicin ƙarfin fitarwa na 44.9 W an samu tare da ingantaccen jujjuyawar gani-zuwa-na gani na 26.4%, wanda kusan daidai yake da na 1 a.% crystal guda.Yin amfani da tsarin 885 nm kai tsaye na ƙaddamar da ƙaddamarwa, gwaje-gwajen laser masu biyowa sun nuna babban ƙarfin gani na 62.5% da iyakar ƙarfin fitarwa na 144.8 W an samo su a ƙarfin famfo na 231.5 W. Wannan ya kasance har zuwa yanzu mafi girman ƙarfin juyawa na gani da aka samu. a cikin Nd: YAG yumbu laser ga iliminmu.Ya tabbatar da cewa za a iya samar da babban iko da ingantaccen fitarwa na laser ta hanyar babban ingancin gani Nd: YAG sandar yumbu tare da fasahar famfo kai tsaye na 885 nm.
Wannan takarda tana gabatar da babban ƙarfin bugun jini, kunkuntar layi, tsakiyar infrared (MIR) laserat 6.45 µm, dangane da BaGa4Se7 (BGse) crystal oscillator oscillator kristal (OPO) wanda aka zazzage ta 1.064 µm Laser.Matsakaicin ƙarfin bugun jini a 6.45 µm ya kasance har zuwa 1.23 mJ, tare da faɗin bugun bugun jini na 24.3 ns da maimaita maimaitawar 10 Hz, daidai da ingantaccen jujjuyawar gani-na gani na 2.1%, daga hasken famfo 1.064 µm zuwa haske mara nauyi 6.45 µm.Hasken layin da ba shi da amfani ya kasance kusan 6.8 nm. A halin yanzu, mun ƙididdige daidai yanayin yanayin daidaitaccen lokaci na OPO a BGse crystal wanda aka zubar da laser 1.064 µm, kuma an yi tsarin simulation na lamba don nazarin abubuwan shigarwa-fitarwa a 6.45 µm, da kuma sakamakon tsayin kristal akan ingantaccen juzu'i.An sami kyakkyawar yarjejeniya tsakanin aunawa da kwaikwayo.Ga iyakar iliminmu, wannan shine mafi girman ƙarfin bugun jini a 6.45 µm, tare da mafi ƙarancin layin layi don kowane m-m-jihar MIR ns Laser a cikin BGse-OPO famfo ta mai sauƙi 1.064 µm oscillator.Wannan tsarin 6.45 µm OPO mai sauƙi da ƙarami, tare da babban ƙarfin bugun jini da kunkuntar layi, na iya biyan buƙatun don yanke nama da haɓaka daidaiton nama.
A cikin wannan takarda, mun nuna wani langasite (LGS) electro-optic Ho: YAG cavity-dumped Laser wanda ke hana samun dogaro na tsawon lokacin bugun jini a cikin lasers na Q-switched.Tsawon bugun bugun jini akai-akai na 7.2 ns an cimma shi a ƙimar maimaitawa na 100 kHz.Amfana daga LGS crystal ba shi da wani gagarumin juyi piezoelectric zobe sakamako da thermally jawo depolarization, wani barga pulse jirgin kasa da aka samu a wani fitarwa ikon 43 W. A karon farko, aikace-aikace na cavity-zubar da Laser a tsakiyar infrared (tsakiyar-) IR) ZnGeP2 (ZGP) oscillator na gani na gani na gani (OPO) an gane shi, yana ba da ingantacciyar hanya don cimma ƙimar maimaitawa mai yawa da gajeriyar lokacin bugun bugun nanosecond don babban ƙarfin tsakiyar infrared ZGP OPOs.Matsakaicin ƙarfin fitarwa shine 15 W, daidai da lokacin bugun bugun jini na 4.9 ns da ƙimar maimaitawa na 100 kHz.
Mun nuna a karon farko ƙarni na octave-spanning tsakiyar infrared ta amfani da BGSe crystal mara nauyi.A Cr: ZnS Laser tsarin isar da 28-fs bugun jini a tsakiyar zangon 2.4 µm ana amfani dashi azaman tushen famfo, wanda ke tafiyar da haɓakar mitar intra-pulse a cikin kristal BGse.A sakamakon haka, an sami madaidaiciyar hanyar sadarwa ta tsakiyar infrared mai ci gaba mai gudana daga 6 zuwa 18 µm.Yana nuna cewa kristal BGSe abu ne mai ban sha'awa don watsa shirye-shiryen watsa shirye-shirye, ƴan-tsakanin tsakiyar infrared ƙarni ta hanyar saukowa saukowa tare da tushen famfo na femtosecond.
1.53 W duk-ƙarfin-jihar nanosecond pulsed tsakiyar infrared Laser a 6.45 µm
