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BBO Pockels Cells
BBO Pockels Cells
BBO Pockels Cells
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  • BBO Pockels Cells

  • Pockels cells alter the polarization state of incident light when applying the voltage on electro-optic crystal. When working with polarizers, these cells can function as optical switches or laser Q-switches. BBO Pockels cells is based on the transverse Pockels effect. The voltage could be reduced by changing the ratio of BBO's width to length.
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    Pockels cells alter the polarization state of incident light when applying the voltage on electro-optic crystal. When working with polarizers, these cells can function as optical switches or laser Q-switches. BBO Pockels cells is based on the transverse Pockels effect. The voltage could be reduced by changing the ratio of BBO's width to length.

    Due to the low piezoelectric response and high laser damage threshold of BBO, CASTECH's BBO Pockels cells can support up to 1MHz frequency. Complete portfolio with various clear aperture and length is available.

    All the Pockels cells are equipped with protective windows with high transmittance AR coating to prevent the Pockels cells from contamination and moisture so as to provide adequate assurance of the product performance and durability.

    Applications

    ● Q-switching ● Regenerative amplifier ● Pulse picker ● Cavity dumping

    ● Beam chopper ● High speed optical switch ● Optical power stabilizer

    Product Number
    Aperture
    (a)
    Crystal Length
    (l)
    Crystal Quantity
    (q)
    Additional
    (b)
    Wavelength
    (w)
    BPC-alq-b-w
    3(3mm)
    4(4mm)
    5(5mm)
    6(6mm)
    7(7mm)
    ...
    A
    (20mm)
    B
    (25mm)
    ...
    S
    (Single)
    D
    (Double)
    T
    (Triple)
    C(Ceramic)
    W(Wave plate)
    B(Brewster window)
    A(Brewster window & wave plate)
    N(Nothing)
    266nm
    532nm
    1030nm
    1064nm
    ...
    L
    (Fiber-coupled)
    FC/PC
    Bare fiber
     
    Product Number*
    Voltage Contrast
    Ratio
    Clear Aperture
    Crystal
    Quantity
    Transmittance
    @1064nm
    With ceramic
    diaphragm
    BPC-alS-C-w
    ≥1200:1
    3~7mm
    Single
    ≥99.3%
    BPC-alD-C-w
    ≥1000:1
    3~7mm
    Double
    ≥99%
    BPC-alT-C-w
    ≥800:1
    3~7mm
    Triple
    ≥97.5%
    With polarizer or
    wave plate
    BPC-alS-b-w
    >800:1
    3~7mm
    Single
    ≥98%
    BPC-alD-b-w
    >500:1
    3~7mm
    Double
    ≥97%
    BPC-alT-b-w
    >500:1
    3~7mm
    Triple
    ≥96%
     
    BPC-L
    >800:1
    Fiber-coupled
    /
    /

    *Damage threshold: 10 J/cm2 @ 1064 nm, 10 ns, 10Hz

    *Customized products are available.

    Dimensions(mm):

     

     
    3AS
    3BS
    4AS
    4BS
    5AS
    5BS
    6AS
    6BS
    3AD
    3BD
    4AD
    4BD
    5AD
    5BD
    6AD
    6BD
    A
    2.6
    2.6
    3.6
    3.6
    4.6
    4.6
    5.6
    5.6
    2.6
    2.6
    3.6
    3.6
    4.6
    4.6
    5.6
    5.6
    B
    35
    40
    35
    40
    35
    40
    35
    40
    57.7
    67.7
    57.7
    67.7
    57.7
    67.7
    57.7
    67.7
    C
    17.5
    20
    17.5
    20
    17.5
    20
    17.5
    20
    17.4
    23
    17.4
    23
    17.4
    23
    17.4
    23
    λ/4 voltage

    (@ 1064 nm), kV
    3.5
    2.8
    4.9
    3.9
    5.9
    4.7
    7.3
    5.8
    1.8
    1.47
    2.5
    2
    3
    2.4
    3.7
    2.9

     

     

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