High Power 300W 976nm Semiconductor Laser Diode for Fiber Laser Pumping

    300W High Power Fiber .jpg

    Main Advantages:
    1.Output power up to 320 W
    2.Wavelengths: 915nm and 976 nm
    3.Stabilized spectrum over temp and current
    4.Fiber core 200 μm,NA 0.22

    5.1064nm laser protect



    The product uses advanced fiber coupling technology to realize 320W high-power in a fiber with numerical aperture NA0.22 and 200um fiber core, and 95% of the power transmitted in the range of NA0.18, so that the laser power is more concentrated and higher brightness. At present, the module can provide output wavelength of 915nm and 976nm  its spectral width FWHM is < 4.5nm, which enables customers to have higher stability when selecting laser applications with different wavelengths. The module has a 1064nm laser isolation mechanism, which is ideally suited for pumping applications such as industrial fiber lasers and fiber laser amplifier and direct diode material processing systems. It avoids damage to the laser module caused by the reverse transmitted light in the system and improves the safety and stability of the whole system.

    Item no.:FC976DL300

    Item name: 300w 976nm high power fiber coupled laser diode


    Center Wavelength

    915nm  or 976nm

    Wavelength Tolerance


    Output Power 


    Spectral Width FWHM


    >90% Power


    Slope Efficiency



    Fiber Bend Radius


    Fiber Core/Cladding/Buffer Diameter


    Fiber Numerical Aperture


    Fiber Length


    Fiber Connector



    Operating Current Iop


    Threshold Current Ith


    Operating Voltage Vop


    Power Conversion Efficiency



    Operating Temperature (Non-Condensing)     


    Storage Temperature (Non-Condensing)


    Wavelength Temperature Coefficient


    Package Drawing(mm):





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    About Us:

    Hangzhou Brandnew Technology Co., Ltd.

    Founded in 2011, BrandNew, the laser diode company, manufactures high-power diode lasers and systems in a wide range of output powers and wavelengths including fiber-coupled, stack bar lasers and plug and play lasers.

    Cooperated with Institute of semiconductors Chinese academy of sciences and Zhejiang University, Today, over 60 technicians and 2 scientists, 20 technicians are with PHD degree. Production space is 10000 Class Lab Clean Room with 2000 square meters. Turnover per year is more than 10M US dollars.

    BrandNew's strengths are in talent employees, quality engineering,Process control, product development and volume manufacturing.


    Core Competency

    ◆ Diode Packaging ◆ Beam Shaping

    ◆ Reliability Testing ◆ Efficient Cooling 




* From: 
Mr. David Wang Mr. David Wang
300W 976nm Semiconductor Pumping Fiber Laser