Splitter Branching Fiber-optic Patch Cords

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  • The Splitter Branching Fiber-optic Patch Cord evenly splits the light from a large core diameter connectorized optical fiber into 2 or more branches of smaller core diameter connectorized optical fibers. A 15 cm long large core optical fiber helps obtain uniform distribution of light before a launch into 2 or more optical fibers bundled inside the central tubing. A 2-branch Splitter Branching Fiber-optic Patch Cord typically outputs around 16 % of the input power.

    These patch cords are typically used in optogenetics for sharing powerful laser or LED light sources between several fibers and conserving uniform light intensity (mW/mm2) among their outputs.

    Splitter Branching Patch cord

    The standard Splitter Branching Fiber-optic Patch cords has 2 branches, more are available if requested. A 2-branch patch cord splitter typically outputs around 16 % of the power entering the input optical connector, with variations depending on fiber type and the area recovery ratio.

    Optical Fiber Core Diameter
    μm )
    Number of Output Fibers
    Internal Input Optical Fibre Core Diameter μm )
    Coupling into Each Output
    100 2x 240 16 %
    3x 240 16 %
    4x 480 4 %
    200 2x 480 16 %
    3x 480 16 %
    4x 730 7 %
    400 2x 960 16 %
    3x 960 16 %
    4x 960 16 %

    This approach uses a 50 mm long metal tube with a 6.35 mm diameter to protect the passage from 1 to several fibers. The length of patch-cord from the metal tube to the patch-cord split, called the central jacket, can be protected using a different jacket type. Splitter patch cords are not suitable for short cables less than 30 cm long. This version allows improved splitting of laser light over older models. In all other applications, the Splitter Branching Patch Cords maintain the same high-quality performance as our legacy Standard Branching Patch Cords.

    • Minimum total cable length is 35 cm.

    • The Type-A (AX identifier) patch cords have no central jacket, with the splitter starting at the metal tube. The split is done 17.5 cm from the input.

    • The Type-B (BX identifier) patch cords have a central jacket covering the length between the metal tube and the splitter. The split is done at 15 cm from the output.

    Not recommended for high power application
    The maximum input power tested in continuous is 100 mW for wavelength between 450 and 650 nm.  Please ask our technical support to use with higher power or different wavelength range.

  • Core/Cladding
    NA Fiber-Optic Code*
    Silica/Silica 100 110 125 0.22 100/110/XXX-0.22
    100 110 125 0.37 100/110/XXX-0.37
    200 220 240 0.22 200/220/XXX-0.22
    200 220 245 0.37 200/220/XXX-0.37
    400 440 480 0.22 400/440/XXX-0.22
    400 440 470 0.37 400/440/XXX-0.37
    Silica/Polymer 200 230 500 0.48 200/230/XXX-0.48
    200 230 500 0.57 200/230/XXX-0.57
    400 430 730 0.48 400/430/XXX-0.48
    400 430 730 0.57 400/430/XXX-0.57
    Plastic/Plastic 240 250 - 0.63 240/250/XXX-0.63
    480 500 - 0.63 480/500/XXX-0.63
    - 0.63 735/750/XXX-0.63

    * XXX is representative of the jacket code, see Jackets tab to choose the best one for your needs

  •  Comparison Table : Protective Jacket
     Code Description Color OD
    Linear mass
    Flexibility Fiber break protection Fiber pull protection Proposed usage
    900 Hytrel loose tube 0.9 Black* 0.9 0.5
    Cable to small freely-moving animal (mice)
    Hytrel loose tube 1.0 mm 
    Black* 1.0 0.5 Excellent
    Low Cable to small freely-moving animal (mice)
    Hytrel loose tube 1.1 mm 
    Black* 1.1 0.5 Excellent
    Low Cable to small freely-moving animal (mice)
    3000 PVC jacket 3 mm Black 3.0 5.8 Low Good Excellent General use cable
    LWMJ Stainless monocoil with PVC 2.4 mm Black 2.4 7.5 Good
    Good Freely-moving animal light delivery with large mice or rat
    Stainless monocoil with kevlar and PUR 3.0 mm
    Black 3.0 11 Good
    Excellent Best compromise between flexibility and robustness
    ARMO Stainless armor 2.3 mm Silver 2.3 9.2 Low Excellent Excellent Preferred for maximum robustness
    ARBK Stainless armor with PVC 3 mm Black 3.0 15 Low Excellent Excellent Preferred for maximum robustness

    * Other color available on request.
    Jacket availability may vary with optical fibre type

  • Termination Codes for Fiber-Optic Patch cords
    Description Product Termination Code
    FC Connector with Zirconia Ferrule

    FC Connector with Metal Ferrule

    FC/APC Connector with Zirconia Ferrule*

    FC/APC Connector with Metal Ferrule*

    SMA Connector with Metal Ferrule SMA
    Zirconia Ferrule OD 1.25 mm ZF1.25
    Zirconia Ferrule OD = 1.25 mm with Flange

    Zirconia Ferrule OD = 1.25 mm with Peek Flange

    Metal Ferrule OD 1.25 mm MF1.25
    Zirconia Ferrule OD = 2.5 mm ZF2.5
    Zirconia Ferrule OD = 2.5 mm with Flange

    Zirconia Ferrule OD = 2.5 mm with Peek Flange

    Metal Ferrule OD = 2.5 mm MF2.5
    Slim Magnetic Connector SMC
    M3 Connector CM3
    M3 Connector Peek Plastic CM3(P)
    M2 Connector CM2
    * FC/APC Connectors available for Fiber-Optic Patch Cords NA 0.22 only.

    Termination Codes for Dual Fiber-Optic Patch cords (1 connector side)
    Description Product Termination Code
    Dual Ferrule with a guiding pin

    Pitch from 0.7 mm to 1.7 mm
    Guiding Socket*

    Pitch from 0.7 mm to 1.7 mm
    *Recommended termination for Dual Fiber-Optic Patch cord.
  • Splitter Branching Patch Cords