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3-Port Combiner 45W for 915nm & 940nm - Low Loss, High Stability | China Suppliers & Factory
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3-Port Combiner 45W for 915nm & 940nm - Low Loss, High Stability | China Suppliers & Factory

Product Features
● Exceptional low insertion loss values for optimal performance
● Minimal polarization correlation loss, ensuring consistent quality
● Reduced wavelength correlation loss for reliable results across various applications
● High stability and reliability, making it a preferred choice among China suppliers and manufacturers

Discover our leading-edge products from a trusted factory in China, designed to meet the highest standards in efficiency and durability
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    Product Details

    Product Description
    The (2+1)*1 Combiner is a device that combines 2 pump lights and 1 signal light into a single double-clad fiber. It is primarily used in high-power fiber lasers and fiber amplifiers. Its product features are:
    Low Insertion Loss
    Signal insertion loss is typically low, generally ≤0.4dB. Reduces optical signal energy loss during combining, maintaining signal strength and improving overall system efficiency.
    High Pump Efficiency
    High pump efficiency, typically ≥93%. Effectively couples pump light energy into the signal light, enabling efficient transmission of pump and signal light within the same fiber.
    Broad Wavelength Range
    Adapts to a wide wavelength range. Pump wavelength range generally 780-1000nm, signal wavelength range 1530-1575nm. Meets the needs of different types of lasers and amplifiers.
    High Power Handling
    Single-arm power handling capability up to 45W. Applicable in high-power fiber laser systems, suitable for high-power operating scenarios.
    High Return Loss
    Return loss typically >45dB. Effectively reduces optical signal reflection, minimizing interference from reflected light, and improving system stability and reliability.
    Good Polarization Characteristics
    For polarization-maintaining (PM) types, Polarization Extinction Ratio (PER) ≥18dB. Maintains the polarization state of the signal light, meeting application scenarios requiring specific polarization characteristics, such as PM fiber lasers.
    Strong Environmental Adaptability
    Operating temperature range -20°C to 70°C, storage temperature -40°C to 85°C. Good environmental adaptability enables stable operation under different conditions.
    Customizable
    Can provide custom configurations based on user requirements, including fiber type, port configuration, etc., meeting specific application needs of different users.
    Product Applications
    Optical fiber communication system
    Cable TV
    Passive optical network
    Product Parameters
    (1+1)*1 & (2+1)*1 combiner specification
    Items Supplier Standard Unit
    Signal Operating Wavelength --- 1530~1570 nm
    Pump Operating Wavelength --- 800~1000 nm
    Signal Insertion Loss P4-2 ≤0.3 dB
    Pump Efficiency P1-4&P3-4 ≥90 %
    Output Signal To Pump ISO P4-1&P4-3 ≥30 dB
    Max Power Handling Each Port Typ. 25 W
    Fiber Length P1/P2/P3 --- ≥1 m
    P4 --- ≥0.9 m
    Temperature Range --- -20~70 ℃
    product description01
    Definition of optical fiber
    Fiber optic Definition Type of optical fiber External connectivity Color Length (m)
    P1&P3 MM Pump Red & Blue ≥1
    P2 SM Isolator black ≥1
    P4 DC (double peel layer) EYDF transparent ≥0.9
    (Erbium ytterbium co-doped fiber)
    Product Size
    product description02
    Frequently Asked Questions (FAQ)
    What is the primary function of the (2+1)*1 Combiner?
    The (2+1)*1 Combiner is designed to merge 2 pump lights and 1 signal light into a single double-clad fiber. It is primarily utilized in high-power fiber lasers and fiber amplifiers to optimize light coupling.
    What are the operating wavelengths for the signal and pump lights?
    The standard signal operating wavelength range is 1530nm to 1570nm (up to 1575nm for some configurations), and the pump operating wavelength range is 800nm to 1000nm (adapting down to 780nm depending on application requirements).
    How efficient is the pump coupling in this combiner?
    The combiner offers high pump efficiency, typically ≥90% (and up to ≥93% in standard configurations), which ensures effective coupling of pump light energy into the signal fiber.
    What is the power handling capability of this device?
    It features robust power handling. The standard specification lists a maximum power handling of 25W per port, with single-arm capability scaling up to 45W, making it ideal for high-power operating environments.
    Can this product be customized for specific configurations?
    Yes, the combiner is customizable. We can provide custom configurations based on specific user requirements, including different fiber types, port configurations, and wavelength ranges.

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