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1x3 PM Fused Coupler

The 1x3 780,980,1030,1064, 1310,1550nm fused PM fiber splitter comes with low excess loss, high extinction ratio, high optical power handling. It has wide range of applications such as optical amplifier, optical sensor, coherent optical system and optical testing equipment.
  • 1x3 Polarization Maintaining Fused Coupler

    780nm, 980nm, 1030nm, 1064nm, 1310nm, 1550nm

    GEZHI 1x3 monolithic FBT (fused biconical taper) PM fiber splitter support various wavelenth from 780nm~1550nm or customzied wavelength. The coupling ratio also could be selected. It features low excess loss, small size and high polarization extinction ratio. The 1x3 Polarization Maintaining fused Splitter (PM splitter) is widely used for optical sensors, optical gyro and fiber optical instrument.


    Low Insertion Loss

    High Return Loss

    High Extinction Ratio


    Coherent Communication

    Power Monitoring

    Fiber Optical Instrument



    Center Wavelengthnm7809801030106413101550
    Operating Wavelength Rangenm±10±10±10±10±10±10
    Max. Excess LossdB0.
    Insertion LossdBIL related to Coupling Ratio
    Extinction RatiodB≥17≥17≥18≥18≥18≥18
    Return LossdB≥55
    Max Power Handling (CW)W0.5, 1, or 2
    Tensile LoadN5
    Operating Temperature-5~+75
    Storage Temperature-40~+85
    Package Dimensionmmφ3x60mm(bare fiber) or φ4x70mm(900um tube)
    Coupling Ratio Tolerance%5/90/510/80/1015/70/1520/60/2025/50/2530/40/3033/33/3340/20/40

    Note: 1. the PM fused coupler is both axis working, no axis can be blocked; default test extinction ratio is on the slow axis.

    2. Above specifications are for device without connector, If with connector, IL will be 0.3dB higher, return loss with be reduce 5dB and Extinction Ratio will reduce 2dB.

    3. For >10W high power applications, we will use heat sink package

    4. If there is pulse application, please be sure to inform us of pulse energy and peak power.






    Ordering Information  PMFBTC-XXXX-XX-XX-X-XX-XX-XX-XX-XX


    780=780nm; 980=980nm; 1030=1030nm; 1064=1064nm; 1310=1310nm; 1550=1550nm; S=Specify

    ②Configuration Type:


    ③Coupling Ratio:

    33/33/33; 40/20/40; S=Specify

    ④Fiber Type:

    PM780; PM980; PM1060; PM1300; PM1550; S=Specify

    ⑤Power Handling:

    0L=0.5W; 01=1W; 02=2W

    ⑥Package Dimensions:

    S3=3.0x60mm(bare fiber); S4=4.0x70mm(900um tube); S=Specify

    ⑦Pigtail Type:

    00=bare fiber; 09=900um loose tube

    ⑧Fiber Length:

    08=0.8m; 10=1m; S=Specify

    ⑨Connector Type:



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