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            福州高特光電科技有限公司

            Although Nd:YAG was invented in the Sixties last century, it has been and is still the most commonly used solid-state crystal material. Nd:YAG crystals are wildly used in all types of solid-state lasers systems-frequency-doubled continuous wave, high-energy Q-switched, and so forth.

            Its good fluorescent lifetime thermal conductivity and physical strengths makes it suitable for high power lamp pumped laser.

             

             

            1)
            Nd Dopant Concentration:
            0.5-1.2 atm%tolerance within 10% of concentration
            2)
            Diameter:
            3 ~ 14mm
            3)
            Length:
            1~ 160mm

            Typical Specification and Tolerance:

            1) 

            Orientation:
            <111> crystalline direction (+/-0.5℃)
            2)
            Wavefront Distortion:
            <l/10 at 632.8nm for 3 ~ 7mm
            <l/8 per inch at 632.8nm for >=7mm
            3)
            Surface Quality:
            better than 20/10 Scratch/Dig per MIL-O-1380A
            4)
            Parallelism:
            < 10 arc seconds
            5)
            Perpendicularity:
            < 5 arc minutes
            6)
            Surface Flatness:
            <l/10 at 632.8nm
            7)
            Clear Aperture:
            Central 90%
            8)
            Chamfer:
            0.15x45o
            9)
            Damage Threshold:
            > 15J/cm2(uncoated )
            > 700 MW/cm2(coated)
            10)
            Coatings:
            a)AR@1064nm, R<0.1%; (see coating 9-1)
            b)AR@1064nm, R< 0.1%;HT@808nm, T>95%;(see coating 6-2)
            c)HR@1064nm, R>99.8%; HT@808nm, T>95%;(see coating 9-2)
            d)HR@1064nm, R>99.8%; HT@808nm, T>95%; HR@532nm, R>99%;(see coating 9-3)
             

             

            To inquiry or order a finished Nd:YAG laser rod, please specify the specification listed above, for common application, we only need to know the main specification: Nd-dopant concentration, sizes, and coating. For special request, please specify specification in details for evaluation and fabrication.

            Physical and Optical Properties
            Chemical Formula Nd:Y3A15O12
            Crystal Structure Cubic
            Lattice Constants 12.01Ä
            Concentration ~ 1.2 x 1020 cm-3
            Melting Point 1970 °C
            Density 4.56 g/cm3
            Mohs Hardness 8.5
            Refractive Index 1.82
            Thermal Expansion Coefficient 7.8 x 10-6 /K [111], 0 - 250 °C
            Thermal Conductivity 14 W/m /K @20 °C, 10.5 W /m /K @100 °C.
                 
             
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