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  • Acousto-Optic Modulators

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    Product description:

    Acousto-optic modulators (AOM) can be used like a shutter (cycling light on and off at a set frequency), or as a variable attenuator (controlling the intensity of transmitted light dynamically). This product only presents 1st order diffracted light under the interaction of Bragg diffraction.

    According to the types of structure, CASTECH‘s acousto-optic modulators can be divided into free-space AOM and fiber-coupled AOM.

    CASTECH optimizes the design of modulators in accordance with the requested speed, wavelength, beam diameter, contrast ratio to offer the best solution for customers. Combined with our competencies of process technology, we are able to offer AOM with LIDT over 1GW/cm2 and low scatter. The connector of the fiber-coupled AOM fiber tail can be adopted by bare fiber, FC/PC or FC/APC.

     

    Applications:

    ● Laser marking

    ● Lithography

    ● Material processing

    ● Medical surgery

    ● Micromachining

     

    Iintroduction:

    Free-space
    Interaction material
    Crystal quartz
    TeO2
    Wavelength
    300 - 400  nm,400 - 540 nm,1030 - 1064 nm or other
    1064 nm
    Damage threshold
    >1 GW/cm²
    >1GW/cm²
    AR coating reflection
    <0.2% per surface
    <0.2% per surface
    Transmission(Single pass)
    ≥99.6%
    ≥97.0%
    RF frequency
    40 MHz/80 MHz/100 MHz or other
    200,250 MHz
    Polarization
    Linear, vertical to base
    Random
    Aperture
    2-3.0 mm or other
    0.18 mm
    Acoustic mode
    Compressional
    Compressional
    Rise time
    113 ns/mm
    <120 ns/mm
    Diffraction efficiency
    ≥ 85 % or other
    ≥70 %
    RF power
    5,10,25 W or other
    2.5 W
    RF connector
    SMA-F or other
    SMA
    RF line length
    200 mm or other
    \
    Cooling
    Conduction-cooled
    Conduction-cooled
    Shell material
    Aluminum alloy 6061
    Aluminum alloy 6061
    Storage temperature
    -20~70 ℃
    -20℃~70℃

     

    Fiber-coupled
    Interaction material
    TeO2
    Wavelength
    1030-1080 nm or other
    RF frequency
    100/120/200MHz or other
    Insertion loss
    ≤1.5dB or other
    Extinction ratio
    ≥45 dB or other
    Rise time
    <50 ns
    Optical power Handling(MAX)
    3 W or other
    RF power
    2 ,2.5W or other
    RF connector
    SMA-F
    Fiber type
    10/125 SC ,PM980 or other
    Fiber length
    1 m or other
    Fiber termination
    Bare fiber or FC/APC
    VSWR
    ≤1.2
    Cooling
    Conduction-cooled
    Shell material
    Aluminum alloy 6061
    Storage temperature
    -20~70 ℃

     

    CAOM-f-a-mt -w-c-h
    RF(f)
    Aperture(a)
    Material(m)
    Mode(t)
    Wavelength(w)
    Connector(c)
    Housing(h)
    100
    1 mm
    Tellurium Dioxide
    Compressional
    1064 nm
    SMA
    A66
    3 mm
    Tellurium Dioxide
    Compressional
    300 - 400 nm
    SMA
    A05
    200 MHz
    0.18 mm
    Tellurium Dioxide
    Compressional
    1064 nm
    SMA
    A29
    250 MHz
    0.18 mm
    Tellurium Dioxide
    Compressional
    1064 nm
    SMA
    A29
    40.68 MHz
    2.5 mm
    Crystalline Quartz
    Compressional
    1030 - 1064 nm
    SMA
    A03
    80 MHz
    2 mm
    Tellurium Dioxide
    Compressional
    400 - 540 nm
    SMA
    A05
    2 mm
    Crystalline Quartz
    Compressional
    1030 - 1064 nm
    SMA
    A03

     

    CAFA-f-r-p-mat-w-c-h
    RF(f)
    RF Range(r)
    Power(p)
    Material(m)
    Fiber Type(a)
    Fiber Terminal(t)
    Wavelength(w)
    Connector(c)
    Housing(h)
    100
    /
    2.5
    Tellurium dioxide
    HI 1060
    Bare fiber
    1064\1550
    SMA
    A87
    120
    /
    2.5
    Tellurium dioxide
    PM980
    FC/PC
    1064\1550
    SMA
    A87
    200
    /
    2.5
    Tellurium dioxide
    PM10/125
     
    1064\1550
    SMA
    A50
     
     
     
     
    SC10/125
     
     
     
     
     
     
     
     
    DCG10/125
     
     
     
     
     
     
     
     
    GSF10/125
     
     
     
     
     
     
     
     
    PM1550XP
     
     
     
     
     
     
     
     
    PM1060
     
     
     
     
     
     
     
     
    SM28
     
     
     
     

     

    CAFA-f-r-p-mat-w-c-h
    RF(f)
    RF Range(r)
    Power(p)
    Material(m)
    Fiber Type(a)
    Fiber Terminal(t)
    Wavelength(w)
    Connector(c)
    Housing(h)
    100
    /
    2.5
    Tellurium dioxide
    HI 1060
    Bare fiber
    1064\1550
    SMA
    A87
    120
    /
    2.5
    Tellurium dioxide
    PM980
    FC/PC
    1064\1550
    SMA
    A87
    200
    /
    2.5
    Tellurium dioxide
    PM10/125
     
    1064\1550
    SMA
    A50
     
     
     
     
    SC10/125
     
     
     
     
     
     
     
     
    DCG10/125
     
     
     
     
     
     
     
     
    GSF10/125
     
     
     
     
     
     
     
     
    PM1550XP
     
     
     
     
     
     
     
     
    PM1060
     
     
     
     
     
     
     
     
    SM28
     
     
     
     

     

    Product Number**
    RF(f)
    Aperture(a)
    Material(m)
    Mode(t)
    Wavelength(w)
    Connector(c)
    Housing(h)
    CAOM-f-a-mt -w-c-h
    68MHz
    80MHz
    100 MHz
    120 MHz
    150 MHz
    200 MHz
    250 MHz
    ...
    ≤3 mm
    CQ
    (Crystalline Quartz)

    TE
    (TeO2)
    C
    (Compressional)
    355nm
    532nm
    1064nm
    ...
    SMA
    SMC
    A03
    A04
    A13
    ...

     

    Product Number**
    RF(f)
    RF Range (r)
    Power (p)
    Material(m)
    Fiber Type (a) 
    Fiber Terminal (t)
    Wavelength (w)
    Connector(c)
    Housing (h)
    CAFA-f-r-p-mat-w-c-h
    100 MHz
    120 MHz
    150 MHz
    200 MHz
    250 MHz
    ...
    /
    ≤2.5 W
    TE
    (TeO2)
    1
    (HI1060)
    2
    (PM980)
    3
    (PM 10/125)
    ...
     B
    (Bare Fiber)
    F
    (FC/PC)
    1030nm
    1064nm
    ...
    SMA
    ...
    A46
    A50
    ...

     

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