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Yb:KGW and Yb:KYW Crystals

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      Yb:KGW and Yb:KYWCrystals
      Description
      Yb3+ doped KY(WO4)2 (KYW) and KGd(WO4)2 (KGW) single crystals arethe new laser crystals for diode and laser pumped solid-state laserapplications.Yb:KGW and Yb:KYW crystals are used as a lasing materials to generateultrashort high power pulses. Yb:KGW can be used as ultrashort pulsesamplifiers and these crystals are one of the best materials for highpower thin disk lasers.The broad spectral emission band of Yb:KYW allows the tuning ofthe laser radiation over 1020-1060 nm range and the generation offemtosecond pulses shorter than 70 fs, enhanced storage capacity,wide absorption spectrum at 980 nm and high absorption of pumpradiation in a small crystal region allows an efficient use of diode laserpump.As compared to YAG or glasses used as hosts for Yb3+, KYW and KGdWhave the advantage of a larger absorption cross section than YAG,which decreases minimum pump intensity necessary to achievetransparency in the quasi-two-level system of ytterbium.
      Standard specifications
      Material Yb:KGW/Yb:KYW
      Orientation: b-cut: Nm axis is parallel to input/outputfaces
      Other orientations available
      Doping concentration: 0.5 – 5.0 atm. % for Yb:KGW
      0.5 – 100 atm. % for Yb:KYW
      Dimensions tolerance: +0/-0.05 mm
      Length tolerance: ±0.1 mm
      Surface quality: 10-5 S-D
      Surface flatness: <λ/10@632.8 nm
      Parallelism error: <10 arcsec
      Perpendicularity: <10 arcmin
      Protective chamfers: <0.1 mm x 45°
      Features
      • High absorption coefficient @ 980 nm• High stimulated emission cross section• Low lasing threshold• Extremely low quantum defect• Broad output at 1020-1060 nm• High slope efficiency with diode pumping (>55%)• High Yb-doping concentration
      Miscellaneous
      • Custom design production is also available• Different doping levels available• Mass production at 2000 pieces per month available• Various end cuts available (plano/plano, wedge/wedge, brewster cut,etc.)• Various dielectric coatings are available.
      Catalog Items
      Product ID End surfaces Coatings Dimensions,mm Material
      3-YB1KGW-01 Rightanglecut AR/AR@980-1080 5×5×2 Yb(1%):KGW
      3-YB1KGW-02 5×5×3
      3-YB1KGW-03 5×5×5
      3-YB1KGW-04 Brewsteranglecut - 5×5×2
      3-YB1KGW-05 5×5×3
      3-YB1KGW-06 5×5×5
      3-YB3KGW-01 Rightanglecut AR/AR@980-1080 5×5×1 Yb(3%):KGW
      3-YB3KGW-02 5×5×3
      3-YB3KGW-03 5×5×5
      3-YB3KGW-04 Brewsteranglecut - 5×5×1
      3-YB3KGW-05 5×5×3
      3-YB3KGW-06 5×5×5
      3-YB5KGW-01 Rightanglecut AR/AR@980-1080 5×5×1 Yb(5%):KGW
      3-YB5KGW-02 5×5×2
      3-YB5KGW-03 5×5×3
      3-YB5KGW-04 Brewsteranglecut - 5×5×1
      3-YB5KGW-05 5×5×2
      3-YB5KGW-06 5×5×3
      3-YB10KYW-01 Rightanglecut AR/AR@980-1080 5×5×1 Yb(10%):KYW
      3-YB10KYW-02 5×5×2
      3-YB10KYW-03 5×5×3
      3-YB10KYW-04 Brewsteranglecut - 5×5×1
      3-YB10KYW-05 5×5×2
      3-YB10KYW-06 5×5×3
      3-YB20KYW-01 Rightanglecut AR/AR@980-1080 5×5×1 Yb(20%):KYW
      3-YB20KYW-02 5×5×2
      3-YB20KYW-03 5×5×3
      3-YB20KYW-04 Brewsteranglecut - 5×5×1
      3-YB20KYW-05 5×5×2
      3-YB20KYW-06 5×5×3






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