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              • 磷酸鈦氧鉀(KTP)
               
              磷酸鈦氧鉀(KTP)

               

              磷酸鈦氧鉀(KTP)最常用于倍頻Nd:YAG及其他摻Nd晶體的激光,特別是在中低功率密度的激光器中。到目前為止,利用KTP進行腔內與腔外倍頻的摻Nd晶體的激光器,在逐步取代可見光染料激光和可調藍寶石激光器。廣泛使用實驗室和醫(yī)學系統(tǒng), 射程探測器,激光雷達,光通信和工業(yè)激光系統(tǒng)。

              Advantages:
              • Large Nonlinear Optical (NLO) Coefficients
              • Wide Angular Bandwidth and Small Walk-off Angle
              • Broad Temperature and Spectral Bandwidth
              • High Electro-Optic (E-O) Coefficient and Low Dielectric Constant
              • Large Figure of Merit for an Optical Waveguide Modulator
              • Nonhygroscopic, Good Chemical and Mechanical Properties

              Capabilities:

              Aperture:
              2x2 ~ 10x10mm
              Lenght:
              0.1 - 20mm
              Cutting Angle q and f:
              Determined by different kinds of homonic generartion
              Phase matching type:
              Type I or Type II
              End Configuration:
              Plano/Plano or Brewst/Brewst or Specified


              Specifications:

              Angle tolerance:
              Δθ< ± 0.5°; Δφ< ±0.5°
              Dimensional Tolerance:
              (W ± 0.1mm) x (H ± 0.1mm) x (L + 0.2mm/-0.1mm)
              Flatness:
              <λ/8 at 633nm
              Surface Quality:
              10/5 Scracth/Dig
              Parallelism:
              < 20 arc seconds
              Perpendicularity:
              < 5 arc minutes
              Wavefront Distortion:
              <λ/8 at 632.8nm
              Clear Aperture:
              Central 95%
              Chamfer:
              0.15x45°
              Coating:
              a) * S1,S2: AR @ 1064 nm R<0.1% & 532nm R<0.25%
              b) * S1:HR @ 1064nm R>99.8% & HT@ 808nm T>95%
              S2:AR @ 1064 nm R<0.1% & 532nm R<0.25%

              Prorerties:

              Crystal structure
              Orthorhombic, point group mm2
              Melting point
              1172°C incongruent
              Cell parameters
              a=6.404?, b=10.616?, c=12.814?, Z=8
              Curie point
              936°C
              Mohs hardness
              ~5
              Density
              3.01 g/cm3
              Color
              colorless
              Hygroscopic susceptibility
              no
              Specific heat
              0.1643 caλ/g.°C
              Thermal conductivity
              0.13 W/cm/°K
              Electrical conductivity
              3.5x10-8 s/cm (c-axis, 22°C, 1KHz)
              Transmitting range
              350nm~4500nm
              Refractive indices
              -
              nx
              ny
              nz
              1064nm
              1.7377
              1.7453
              1.8297
              532nm
              1.7780
              1.7886
              1.8887
              Absorption coefficients
              a < 1%/cm @1.064μ m and 0.532μ m
              Phase matchable range
              0.984 - 3.4 μ m
              Therm-optic coefficients
              dnx/dT=1.1x10-5/°C, dny/dT=1.3x10-5/oC, dnz/dT=1.6x10-5/°C
              Nonlinear optical coefficients
              d31=2.54pm/V, d31=4.35pm/V, d31=16.9pm/V
              d24=3.64pm/V, d15=1.91pm/V at 1.064 mm
              deff(II)≈(d24 - d15)sin2Φsin2Θ - (d15sin2Φ?+ d24cos2Φ)sinΘ
              Electro-optic coefficients
              -
              Low frequency(pm/V)
              High requency(pm/V)
              γ13
              γ23
              γ33
              γ51
              γ42
              9.5
              15.7
              36.3
              7.3
              9.3
              8.8
              13.8
              35.0
              6.9
              8.8
              Dielectric constant
              eeff=13

              Sellmeier equations
              nx2=3.0065+0.03901/(l2-0.04251)-0.01327l2
              ny2=3.0333+0.04154/(l2-0.04547)-0.01408l2
              nz2=3.3134+0.05694/(l2-0.05658)-0.01682l2

               

              Note: Kinds of sizes, coating are available upon request.


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