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        HOME >PRODUCT DISPLAY >PRODUCT DETAIL
        PRODUCT PIC
        LBO crystal
            LBO (Lithium Triborate or LiB3O5) is an excellent crystal which has very wide transparency, high nonlinear coupling, high damage threshold and good chemical and mechanical properties
        • DETAIL
        • STANDARD PRODUCT
        • BASIC PROPERTIES
        • Applications:

              ● High power Nd:YAG and Nd:YLF lasers for R&D and military applications.

              ● Ti:Sapphire, Alexandrite and Cr:LiSAF lasers.

              ● Medical and industrial Nd:YAG lasers.

              ● Diode laser pumped Nd:YVO4, Nd:YAG and Nd:YLF lasers.

              ● Frequency-tripling (THG) of Nd:YAG and Nd:YLF lasers.

              ● Optical parametric amplifiers (OPA) and oscillators (OPO) pumped by Excimer lasers and harmonics of Nd:YAG lasers.

              ● Frequency doubling (SHG) and tripling (THG) of high power Nd:YAP laser at 1.34μm.

           

          CRYSTIK‘s LBO is featured by:

              ● High damage threshold;

              ● Spectral NCPM near 1300nm.

              ● Wide acceptance angle and small walk-off;

              ● High optical homogeneity (δn≈10-6/cm) and being free of inclusion;
              ● Relatively large effective SHG coefficient (about three times that of KDP);
              ● Type I and type II non-critical phase matching (NCPM) in a wide wavelength range;

              ● Broad transparency range from 160nm to 2600nm ; (SHG range from 55nm to 2600nm)

           

          CRYSTIK offers:

              ● Strict quality control;

              ● Free Technical Support.
              ●  Large crystal size up to 35x35x30mm3 and maximum length of 60mm;
              ● AR-coating, mounts and re-polishing services;
              ● A large quantity of  crystals in stock;
              ●  Fast delivery(2 weeks for polished only, 3 weeks for coated).

        • Dimension Tolerance

          W(+/-0.1)*H(+/-0.1)*L(+0.5/-0.1)mm

          Angle Tolerance

          +/-0.25°

          Perpendicularity

          ≤ 10’

          Scratch/Dig

          10/5

          Chamfer

          ≤ 0.2mm x 45°

          Parallelism

          ≤10″

          Chips

          ≤ 0.1mm

          Flatness

          [email protected]

          Clear Aperture

          ≥ 90%

          Wavefront distortion

          [email protected]

          Coatings

          C1---   [email protected](R<0.2%)&532(R<0.5%)

          C2---   [email protected](R<0.2%)&532(R<0.5%)&355(R<0.5%)

          Damage Threshold

          1GW/cm2 (1064nm, 10ns, 10Hz)



        • 圖片3.png

          Chemical and Structural properties


          Crystal Structure

          Orthorhombic, Space group Pna21, Point group mm2

          Lattice Parameter

          a=8.4473?, b=7.3788? , c=5.1395? , Z=2

          Melting Point   

          About 834℃

          Mohs Hardness   

          6

          Density         

          2.47 g/cm3

          Thermal Conductivity  

          3.5W/m/K

          Thermal Expansion Coefficient

          ax=10.8x10-5/K, ay= -8.8x10-5/K, az=3.4x10-5/K


          Optical and Nonlinear Optical Properties 


          Transparency Range

          160-2600nm

          SHG Phase Matchable Range

          551 ~ 2600nm  (Type I)      790-2150nm (Type II)

          Therm-optic Coefficient

          (°C, l in μm)

          dnx/dT=-9.3X10-6
          dny/dT=-13.6X10-6
          dnz/dT=(-6.3-2.1l)X10-6

          Absorption  Coefficient

          <0.01%/cm at 1064nm    <0.3%/cm at 532nm

          Angle Acceptance

          6.54mrad-cm    (φ, Type I,1064 SHG)
          15.27mrad-cm    (q, Type II,1064 SHG)

          Temperature Acceptance

          4.7°C-cm   (Type I, 1064 SHG)
          7.5°C-cm   (Type II,1064 SHG)

          Spectral Acceptance

          1.0nm-cm (Type I, 1064 SHG)
          1.3nm-cm (Type II,1064 SHG)

          Walk-off Angle

          0.60° (Type I  1064 SHG)
          0.12° (Type II  1064 SHG)

          NLO Coefficient

          deff(I)=d32cosφ      (Type I  in XY plane)
          deff(I)=d31cos2θ+d32sin2θ   (Type I  in XZ plane)
          deff(II)=d31cosθ  (Type II in YZ plane)
          deff(II)=d31cos2θ+d32sin2θ   (Type II in XZ plane)

          Non-vanished NLO susceptibilities

          d31=1.05 ± 0.09 pm/V
          d32= -0.98 ± 0.09 pm/V
          d33=0.05 ± 0.006 pm/V

          Sellmeier  Equations(λ in μm)     

          nx2=2.454140+0.011249/(λ2-0.011350)-0.014591λ2-6.60x10-5λ4
          ny2=2.539070+0.012711/(λ2-0.012523)-0.018540λ2+2.0x10-4λ4
          nz2=2.586179+0.013099/(λ2-0.011893)-0.017968λ2-2.26x10-4λ4

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