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  • Products > Crystal Products > 手机博雅德州扑克充值-博雅德州扑克-博雅德州扑克充值
  • 手机博雅德州扑克充值-博雅德州扑克-博雅德州扑克充值

    Advantages:

    ·         large nonlinear optical coefficient

    ·         wide angular bandwidth and small walk-off angle

    ·         broad temperature and spectral bandwidth

    ·         high electro-optic coefficient and low dielectric constant

    ·         large figure of merit

    ·         nonhydroscopic, chemically and mechanically stable

    Basic properties:

    Structural and Physical Properties:

    Crystal structure

    Orthorhombic, space group Pna21,point group mm2

    Cell parameters

    a=6.404Å , b=10.616Å , c=12.814Å , Z=8

    Melting point

    1172° C incongruent

    Curie point

    936° C

    Mohs hardness

    5

    Density

    3.01 g/cm3

    Color

    colorless

    Hygroscopic susceptibility

    no

    Specific heat

    0.1643 cal/g× ° C

    Thermal conductivity

    0.13 W/cm/° K

    Electrical conductivity

    3.5x10-8 s/

    Nonlinear Optical Properties:


    Phase matchable SHG range:

    497 - 1800nm

    Nonlinear optical coefficients:

    d31=6.5pm/v, d32=5pm/v, d33=13.7pm/v,d24=7.6pm/v,d15=6.1pm/v
    deff(II)» (d24 - d15)sin2f sin2q - (d15sin2q + d24cos2f)sinq

    For type II SHG of a Nd:YAG:

    laser at 1064nm:

    PM angle: q =90° , f =23.5°
    Effective SHG coefficient: deff» 8.3xd36(KDP)
    Angular acceptance: 20 mrad-cm
    Temperature acceptance: 25° C-cm
    Spectral acceptance: 5.6 Å -cm
    Walk-off angle: 4.5 mrad (0.26° )
    Optical damage threshold: > 450MW/cm2, (@ 1064nm, 10ns, 10Hz)

    Electro-optic coefficients:
    r13
    r23
    r33
    r51
    r42

    Low frequency (pm/V) 
    9.5
    15.7 
    36.3 
    7.3
    9.3 

    High frequency (pm/V)
      8.8
    13.8
    35.0
    6.9
    8.8

    Dielectric constant:

    e eff=13

    Optical Properties:


    Transmitting range:

    350 nm - 4500 nm

    Refractive indices:

    nx

     ny

     nz

    1064nm
    532nm

    1.7377 
    1.7780 

    1.7453 
    1.7886 

    1.8297
    1.8887

    Sellmeier equations:

    ( l in m m)

    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/(l2-0.05556)-0.01682l2

    Therm-optic coefficients:

    dnx/dT=1.1x10-5/° C, dny/dT=1.3x10-5/° C, dnz/dT=1.6x10-5/° C

    Absorption coefficient:

    a < 1% cm-1 @1064nm and 532nm

    Applications:

    ·         frequency doubling (SHG) of Nd-doped lasers for green/red output.

    ·         frequency mixing (SFM) of Nd laser and diode laser for blue output.

    ·         parametric sources (OPG, OPA and OPO) for 600nm-4500nm tunable output.

    ·         E-O modulators, optical switches, directional couplers.

    ·         optical waveguides for integrated NLO and E-O devices

    NEWPHOTONS provide 手机博雅德州扑克充值-博雅德州扑克-博雅德州扑克充值 with:

  • Standard size of 手机博雅德州扑克充值-博雅德州扑克-博雅德州扑克充值 crystal for DPSS application;

  • strict quality control on optical Standard homogeneity, transmission and scattering

  • quick delivery

  • unbeatable price and quantity discount

  • free technical support

  • AR-coating, mounting and re-polishing service

  • mass Production to Support Industrial and Commercial Applications;

  • Applications for SHG and SFG of Nd:lasers :

    手机博雅德州扑克充值-博雅德州扑克-博雅德州扑克充值 is the most commonly used material for frequency doubling of Nd:YAG lasers and other Nd-doped lasers, particularly at the low or medium power density. To date, extra- and intra-cavity frequency doubled Nd:lasers using 手机博雅德州扑克充值-博雅德州扑克-博雅德州扑克充值 have become a preferred source of pumping visible dye lasers and tunable Ti:Sapphire lasers as well as their amplifiers. Applied to diode-pumped Nd:laser, 手机博雅德州扑克充值-博雅德州扑克-博雅德州扑克充值 has provided the basis for the construction of compact visible solid state laser systems.

    Application for OPG, OPA and OPO:

    As an efficient OPO crystal pumped by a Nd:laser and its second harmonics, 手机博雅德州扑克充值-博雅德州扑克-博雅德州扑克充值 plays an important role for parametric sources for tunable output from visible (600nm) to mid-IR (4500nm), referring to Fig. 1 and Fig. 2.

    手机博雅德州扑克充值-博雅德州扑克-博雅德州扑克充值's OPO results in stable, continuous outputs of femtosecond pulse of 108 Hz repetition rate and miliwatt average power levels in both signal and idler output. 手机博雅德州扑克充值-博雅德州扑克-博雅德州扑克充值's OPO pumped by a 1064nm Nd:YAG laser has generated above 66% efficiency for degenerately converting to 2120nm.

    The recently developed new application is the non-critical phase-matched (NCPM) 手机博雅德州扑克充值-博雅德州扑克-博雅德州扑克充值 OPO/OPA pumped by the tunable lasers such as Ti:Sapphire, Alexandrite and Cr:LiSrAlF6 (see right figure). The NCPM 手机博雅德州扑克充值-博雅德州扑克-博雅德州扑克充值 OPO keeps the 手机博雅德州扑克充值-博雅德州扑克-博雅德州扑克充值 crystal fixed in X-axis and tunes the pumping wavelength. If a tunable Ti:Sapphire laser is used as a pumping source (0.7 mm to 1 mm), the output can cover the wavelength range from 1.04mm to 1.45 mm (signal) and from 2.15 mm to 3.2 mm (idler). Due to the favorable NLO properties of NCPM 手机博雅德州扑克充值-博雅德州扑克-博雅德州扑克充值, as high as 45% conversion efficiency was obtained with narrow output bandwidth and good beam quality.

    Application for E-O Devices:

    In addition to unique NLO features, 手机博雅德州扑克充值-博雅德州扑克-博雅德州扑克充值 also has promising E-O and dielectric properties that are comparable to LiNbO3These advantaged properties make 手机博雅德州扑克充值-博雅德州扑克-博雅德州扑克充值 extremely useful to various E-O devices. Table 1 is a comparison of 手机博雅德州扑克充值-博雅德州扑克-博雅德州扑克充值 with other E-O modulator materials commonly used:

    Table 1. Electro-Optic Modulator Materials


    Material

    e

    n

    r
    (pm/V)

    Phase
    k(10-6/° C)

    N7r2/e 
    (pm/V)2

    r
    (pm/V)

    Amplitude
    k(10-6/° C)

    n7r2/e
      (pm/V)2

    手机博雅德州扑克充值-博雅德州扑克-博雅德州扑克充值
    LiNbO3
    KD*P
    LiIO3

    15.42 27.9
    48.0
    5.9

    1.80
    2.20
    1.47
    1.74

    35.0
    8.8
    24.0
    6.4

    31
    82
    9
    24

    6130
    7410
    178
    335

    27.0
    20.1
    24.0
    1.2

    11.7
    42
    8
    15

    3650
    3500
    178
    124

    When these properties are combined with high damage threshold, wide optical bandwidth (>15GHZ), thermal and mechanical stability and low loss, 手机博雅德州扑克充值-博雅德州扑克-博雅德州扑克充值 can be expected to replace a considerable volume of LiNbO3 crystals as E-O modulators.

    Applications for Optical Waveguides:

    Based on the ion-exchange process on 手机博雅德州扑克充值-博雅德州扑克-博雅德州扑克充值 substrate, low loss optical waveguides developed for 手机博雅德州扑克充值-博雅德州扑克-博雅德州扑克充值 have created novel applications of integrated optics. 

    Recently, type II SHG conversion efficiency of 20%/W/cm2 was achieved by balanced phase matching, in which the phase mismatch from one was balanced against a phase mismatch of opposite sign from a second section. Furthermore, segmented 手机博雅德州扑克充值-博雅德州扑克-博雅德州扑克充值 waveguides have been applied to type I quasi-phase-matchable SHG of 760-960mm for tunable Ti:Sapphire laser and directly doubled diode laser for 400-430nm output. Conversion efficiency in excess of 100%/W/cm2 have been obtained.

    NEWPHOTONS Warranty on 手机博雅德州扑克充值-博雅德州扑克-博雅德州扑克充值 Specifications:

    • Transmitting wavefront distortion: less than l /4 @ 633 nm
    • Dimension tolerance: (W ± 0.1 mm) x (H ± 0.1 mm) x (L + 0.2 mm/-0.1mm)
    • Clear aperture: > 90% central area
    • Flatness: l /8 @ 633 nm
    • Scratch/Dig code: 10/5 to MIL-O-13830A
    • Parallelism: better than 20 arc seconds
    • Perpendicularity: 5 arc minutes
    • Angle tolerance: D q < ± 0.5° , D f < ± 0.5°
    • AR coating: R< 0.2% at 1064nm and R<1.0% at 532 nm.
    • Quality Warranty Period: one year under proper use.

    Standard Product:

    Part No.

    Dimension

    Application

    Coating

    Type

    手机博雅德州扑克充值-博雅德州扑克-博雅德州扑克充值0101

    2x2x3mm

    SHG@1064nm

    AR/HR coating

    II

    手机博雅德州扑克充值-博雅德州扑克-博雅德州扑克充值0102

    2x2x5mm

    SHG@1064nm

    AR/HR coating

    II

    手机博雅德州扑克充值-博雅德州扑克-博雅德州扑克充值0103

    3x3x3mm

    SHG@1064nm

    DBAR-coating

    II

    手机博雅德州扑克充值-博雅德州扑克-博雅德州扑克充值0104

    3x3x5mm

    SHG@1064nm

    DBAR-coating

    II

    手机博雅德州扑克充值-博雅德州扑克-博雅德州扑克充值0105

    3x3x10mm

    SHG@1064nm

    DBAR-coating

    II

    手机博雅德州扑克充值-博雅德州扑克-博雅德州扑克充值0107

    7x7x20mm

    OPO for 1064à1570nm

    AR coating

    II

    AR Coating: AR@1064nm&532nm; HR Coating: HR@1064nm&HT@532nm