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    • 1055 nm Narrow Bandpass Optical Filter

    The 1055 nm narrow bandpass filter is a bandpass optical filter designed for precise spectral selection in the near-infrared region. Centered around 1055 nm, it efficiently transmits the 1020-1090 nm band while providing deep blocking of out-of-band light on both sides, thereby enhancing system signal-to-noise ratio and spectral selectivity. The filter offers an average transmittance Tavg > 93% over 1020-1090 nm, and achieves an average optical density ODavg > 5 in the blocking ranges of 250-970 nm and 1140-1530 nm. It is suitable for near-infrared fluorescence imaging, laser detection, spectroscopy, machine vision, and precision optical systems that require extraction of specific signals around 1055 nm.

    Product features：High‑transmission bandpass design；Precise wavelength selection near 1055 nm；Deep blocking on both sides of the passband；Narrow‑band spectral selectivity；Stable long-term optical performance

    Part Number：MP‑NBP‑1055

    Application area：Near-infrared fluorescence imaging | Near-infrared spectroscopy | Laser detection and measurement | Spectroscopic instruments and multi-band optical inspection systems

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    Main parameters
  • Core parameters

  • Laser Wavelength Transmission Band

    1055 nm Tavg > 93% 1020 – 1090 nm

  • Dimension Drawing
    • General Parameters

    Specification

    Value

    Transmission Band

    Tavg > 93%  1020 – 1090 nm

    Blocking Band

    ODavg > 5  250 – 970 nm

    Blocking Band

    ODavg > 5  1140 – 1530 nm

    FWHM Bandwidth

    85.5nm

    Guaranteed Minimum Bandwidth

    70

    Angle of Incidence

    0 ± 5°

    Cone Half-angle

    7°

    Clear Aperture

    ≥22mm

    Transverse Dimensions, Diameter

    25 mm

    Filter Thickness, Mounted

    3.5 mm

    Filter Thickness Tolerance, Mounted

    ±0.1mm

    Filter Thickness, Unmounted

    2.0 mm

    Filter Thickness Tolerance, Unmounted

    ±0.1mm

    Surface Quality (Scratch-Dig)

    60-40

    Filter Effective Index

    1.79

    Optical Damage Rating

    Testing has proven to show no signs of degradation when exposed to at least 6.0 W of power from an unfiltered xenon arc lamp over a 25 mm diameter (corresponding to 1.2 W/cm2) for over 500 hrs.

    Orientation

    Arrow on ring is preferred direction of propagation of light

     

    Spectral Characteristic Curves

     

    Transmittance-Wavelength Spectrum

    图片1.png 

     

     

    Optical Density Spectrum

     图片2.png


    Optional Configurations

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  • Product title: 1055 nm Narrow Bandpass Optical Filter
  • Product link: https://www.idealphotonics.com/product/detail/1691.html

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    • 10000 10k + Diodes sold worldwide
    • 30 30+ Invention patent
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