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Filter Wavelength Division Multiplexer (GK-FWDM Series)
WDM-filter

Filter Wavelength Division Multiplexer (GK-FWDM Series)

The Filter Wavelength Division Multiplexer is based on environmentally stable thin film filter technology. The devices combine or separate light at different wavelength in a wide wavelength range. They offer very low insertion loss, low polarization dependence, high isolation and excellent environmental stability. High power handling capability can be achieved through unique pigtail processing and high quality AR coating. These components have been extensively used in EDFAs, Raman amplifiers, WDM networks and fiber optical  instruments.

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    Specifications

    Parameter

    Unit

    Value

    Pass Band          Wavelength Range

    nm

    1270 - 1350 (1530 - 1600) 1450 - 1490 (1530 - 1580)
    1500 - 1520 (1530 - 1570)

    Max. Insertion Loss

    dB

    0.4   0.4   0.5

    Typ. Insertion Loss

    dB

    0.6   0.6   0.7

    Min. Isolation

    dB

    35   30   35

    Typ. Isolation

    dB

    30   25   30

    Reflection Band   Wavelength Range

    nm

    1530 - 1600 (1270 - 1350) 1530 - 1580 (1450 - 1490)
    1530 - 1570 (1500 - 1520)

    Max. Insertion Loss

    dB

    0.3

    Typ. Insertion Loss

    dB

    0.5

    Min. Isolation

    dB

    15

    Typ. Isolation

    dB

    12

    Min. Return Loss

    dB

    50

    Max. Polarization Dependent Loss

    dB

    0.1

    Typ. Polarization Dependent Loss

    dB

    0.05

    Thermal Stability

    dB/℃

    0.005

    Max. Optical Power

    mW

    300

    Max. Tensile Load

    N

    5

    Fiber Type

    -

    SMF-28 Fiber

    Operating Temperature

    - 5 to + 70

    Storage Temperature

    - 40 to + 85

    IL is 0.3 dB higher, RL is 5 dB lower for each connector added.

    Package Dimensions

    Filter Wavelength Division Multiplexer (GK-FWDM Series)

    product description

    The Filter Wavelength Division Multiplexer (FWDM) from GKER Photonics, as detailed in the provided search results, is a high-performance optical device designed for precision wavelength management in optical communication systems. It is based on environmentally stable thin-film filter technology, which allows it to combine or separate light at different wavelengths within a wide wavelength range. Here are some of its key features and specifications:

    Low Insertion Loss: The FWDM offers very low insertion loss, with a maximum of 0.7 dB for the pass band wavelength range of 980 ± 10 nm, ensuring efficient light transmission with minimal power loss .

    High Isolation: It provides a minimum isolation of 25 dB, which effectively suppresses back reflections and unwanted signals, enhancing the signal-to-noise ratio and system performance .

    Low Polarization Dependence: With a maximum polarization-dependent loss (PDL) of 0.1 dB, the FWDM ensures consistent performance regardless of the input light's polarization state .

    High Return Loss: The device has a minimum return loss of 50 dB, which helps to prevent signal interference and distortion .

    Excellent Environmental Stability: The FWDM is designed to operate reliably within a wide temperature range of -5°C to +70°C, and can be stored in conditions ranging from -40°C to +85°C, making it suitable for diverse operational environments .

    High Power Handling Capability: Through unique pigtail processing and high-quality AR coating, the FWDM can handle high laser power, making it suitable for use in high-power applications such as EDFAs, Raman amplifiers, WDM networks, and fiber optical instruments .

    Telecordia Compliance: The device is compliant with Telcordia GR-1209-CORE-2001 and ITU-T G.694.1 standards, ensuring reliability and performance in mission-critical applications .

    These features make the Filter Wavelength Division Multiplexer an indispensable component in advanced optical systems where precision, reliability, and efficiency are paramount. Its ability to handle high power levels, combined with its low loss and high isolation characteristics, contribute to its reputation as a pinnacle of engineering excellence in the field of optical communication systems.