Fiber Bragg Grating

Fiber Bragg grating (FBG) offered by Precilasers is fabricated by ultraviolet lithography with phase mask. Through precise control of spectral shape and reflectivity, FBG pair formed by wavelength matched gratings with high reflectivity(HR) and low reflectivity(OC) is obtained. It can be used to make high-power CW and pulsed fiber lasers with excellent performance. The backward light at the HR end is effectively suppressed by optimizing the shape of the reflection spectra of the FBGs as well as strengthening the wavelength matching between HR and OC FBGs, so as to achieve the best efficiency and also increase the threshold of Raman scattering. FBG offered by Precilasers can be written on common single-mode fiber, large-mode area fiber, double-cladding fiber, polarization-maintaining fiber and other fibers. The characteristics such as wavelength, spectral width and reflectivity are flexible and can be customized to meet the requirements in many different fields.

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    Main Specification

     

    FBG Pair
    HR Spec
    Center Wavelength 1000-2000nm
    FWHM 1-3nm
    TEM00 mode Reflectivity >99%
    Fiber Type SM fiber,PM fiber,LMA Fiber,Double Cladding Fiber
    Power Handling 100W
    Wavelength Difference Torelance 
    between HR and OC
    <0.2nm
    Packaging Bare Fiber Recoating
    Pigtail Length >0.9m for each port
    OC
    Center Wavelength 1000-2000nm
    FWHM 0.1-2 nm
    TEM00 mode Reflectivity 5-90 %
    Fiber Type SM fiber,PM fiber,LMA Fiber,Double Cladding Fiber
    Power Handling 100W
    Packaging Bare Fiber Recoating
    Pigtail Length >0.9m for each port

     

    Cross Aligned FBG Pair
    HR 指标 Spec
    Center Wavelength 1000-2000nm
    FWHM 0.2-0.5nm
    TEM00 mode Reflectivity >99%
    Fiber Type PM fiber,LMA PM Fiber,Double Cladding PM Fiber
    Power Handling 100W
    Wavelength Difference Torelance 
    between HR and OC
    <0.05nm
    Packaging Bare Fiber Recoating
    Pigtail Length >0.9m for each port
    OC
    Center Wavelength 1000-2000nm
    FWHM 0.05-0.15 nm
    TEM00 mode Reflectivity 5-50 %
    Fiber Type PM fiber,LMA PM Fiber,Double Cladding PM Fiber
    Power Handling 100W
    Packaging Bare Fiber Recoating
    Pigtail Length >0.9m for each port

    Applications

    Key Features:

    • Compact,50mm*30mm
    • High PER:23-30dB
    • Wide Wavelength range:500nm - 2000nm
    • Low insertion loss<1.5dB
    • Multi-channel: 256

    Applications:

    • Basic optical experiment
    • Atom interferometer
    • magneto-optical trap
    • quantum computing

    Size

    data in progress

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