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Large NA NIR Fiber Spectrometer N Series

  • The N Series Cooled NIR Fiber Spectrometer is the core component that adopts an InGaAs linear image sensor, which has high sensitivity and stability in the near-infrared region. It is professional spectroscopy equipment for scientific research-grade near-infrared applications. It has the characteristics of small size, easy operation, and excellent performance.


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    Features

    •  Support GPIO 

    •  Cooled InGaAs Detectors 

    •  Batch Consistency Control 

    •  High signal-to-noise ratio, low stray light 

    •  Transmitted Light Paths

    Technical Advantages

    1. High sensitivity, high dynamic range

    The N series spectrometer features Hamamatsu InGaAs linear image sensors, with TEC cooling, up to -20 °C, which makes the detector less noisy, which makes it more suitable for low-light detection; the signal-to-noise ratio and dynamic range can reach 15000:1. 

    Continuing the high-throughput structure design of HiNa series, F/2 can not only fully couple the input from 0.22NA fiber, but also has design redundancy, which can be compatible with unique fiber with a larger numerical aperture or customized input optical paths.



    2. Powerful PC software

    The PC software provided with the spectrometer-FLAVOR is powerful software. In addition to the basic spectrum acquisition control functions, it also has functions such as saturation and automatic adjustment of the integration time, recording of the real integration time, and automatic peak finding. At the same time, the software also includes characteristic functions such as wavelet smoothing with patented technology.

    SDK supports Windows, Android, and Linux operating systems, and can provide secondary development packages in C#, C++, Java, Python, and other languages.


    3. High stability

    0~40℃, the spectral resolution remains unchanged, which is the best choice for industrial applications.


    4. Simple to use

    No configuration, preheating, plug and play

    Separate 5V DC power supply


    Product specifications and Brochures

    Product Brochure:  


    Wavelength Range

    900 - 2500nm, depending on the grating

    Resolution

    up to 3nm@25um slit width

    Total Number of Pixels

    256pixels or 512 pixels (model number with the end of  'p')

    Detector

    G11508-SA, 900-1700nm, the maximum cooling is lower than ambient temperature of 40°C.

    G11477-WB, 900-2200nm, the maximum cooling is lower than ambient temperature of 50°C.

    G11478-WB, 900-2500nm, the maximum cooling is lower than ambient temperature of 50°C.

    Cooling

    TEC cooling up to -30°C

    Signal to Noise Ratio

    10,000:1

    Integration Time

    5us - 120s

     Pixel
     256 pixels or 512 pixels (add "p" at the end of the model)
     Plug and play
     SMA905 or FC/PC 
     Size/Weight 170 x 179 x 64.5mm / 1.5kg
    OEM/Customization

    Contact us for customization


    Configuration Example




    Wavelength, Slit and Optical Resolution Specifications


    Model

    Wavelength

    Range

    Resolution for different Slit Width
    25 um50 um100 um200 um
    N/1064-1300p1064-1300nm3nm5nm10nm20nm
    N/900-1700p900-1700nm3nm5nm10nm20nm
    N/900-2200900-2200nm/10nm16nm32nm
    N/900-2200p900-2200nm5nm8nm16nm32nm
    N/900-2500p900-2500nm6nm9nm18nm36nm


    Software Interface


    Main software user interface

    1.Detection Panel  (Function menu and operation buttons)

    2.Device Panel (Device list and paremeter settings)

    3.Spectral Window (Spectral curve display and spectral window management)

    4.Spectral Recording Panel (Spectral curve selection and naming)


    Key Spectral processing feature 

    ● Wavelength Smoothing 

    ● Defluoresence 

    ● Substract the background signal

    ● Rransmission and reflection measurement 

    ● Absobance measurement 

    ● Multi measurement with different timing


  • Due to the limited number of pixels in the spectrometer detector, at high spectral resolution, only a few pixels form a single spectral peak, resulting in no smooth peak, as shown in the following figure.

    This figure shows an example of peak position drift caused by temperature drift of the spectrometer at different temperatures. The spectral peak is not symmetrical because the number of pixels that make up the spectral peak is very small, and under the influence of temperature drift, the highest pixel of the spectral peak moves one pixel from left to right.


    At this point, we have two methods to evaluate the drift of this peak position.

    1. Check the position of the highest pixel point. Obviously, the peak position has shifted by one pixel, which means approximately 0.15 nm.

    2. Fit the peak values before and after drift, and find the fitted peak point between two pixels. The drift of the fitted peak point is about 0.07nm

     

    So which of these two methods is correct? We believe the second one is correct, reflecting the true drift of the peak position. The reasons are as follows.

    1.High resolution results in a low pixel sampling rate for spectral peaks, and directly observing the shape of a pixel does not reflect the actual shape of the peak.

    2.The spectral peak is physically closer to a symmetrical distribution, and the shift in peak position will not cause a change in peak shape.

    3.By fitting all the pixels that make up the spectral peak, the peak shape obtained is closer to the physical reality of the peak.


    Therefore, using fitted peak shapes to determine peak positions and evaluate spectrometer drift is the correct method.


    Is it necessary to do so in practice? It depends on the actual situation. If

     

    1.Low spectral resolution and high sampling rate of spectral peaks require more pixels to form a peak, and these pixels themselves are connected in a smoother and more symmetrical peak shape. Then, the position of the highest pixel or between two pixels can be directly found, and the peak position can be confirmed through visual evaluation.


    2.With high spectral resolution and the need to accurately know peak values, the above fitting method is required. Fitting can be achieved through spline algorithm or Gaussian or Lorentz fitting, and one can choose based on the spectral properties of the tested sample. If you don't know how to choose, please use spline curves.


  • parts

    For more information about customized accessories, please contact us sales@goptica.com

    ModelCategoryWavelengthCore DiameterLength# Number of coresInterface
    I1000-S/S-L2fiber optic360~2500nm1000um2m1SMA905-SMA905
    V1000-S/S-L2200 ~ 1100 nm1000um2m1SMA905-SMA905
    DV600-S/S-L2190~1100 nm600um2m1SMA905-SMA905
    I600-S/S-L2360~2500nm600um2m1SMA905-SMA905
    V600-S/S-L2200 ~ 1100 nm600um2m1SMA905-SMA905
    DV400-S/S-L2190~1100 nm400um2m1SMA905-SMA905
    I400-S/S-L2360~2500nm400um2m1SMA905-SMA905
    V400-S/S-L2200 ~ 1100 nm400um2m1SMA905-SMA905
    DV200-S/S-L2190~1100 nm200um2m1SMA905-SMA905
    I200-S/S-L2360~2500nm200um2m1SMA905-SMA905
    V200-S/S-L2200 ~ 1100 nm200um2m1SMA905-SMA905
    DV100-S/S-L2190~1100 nm100um2m1SMA905-SMA905
    I100-S/S-L2360~2500nm100um2m1SMA905-SMA905
    V100-S/S-L2200 ~ 1100 nm100um2m1SMA905-SMA905
    I1000-Y*2-S/S-L2

    Forked optical fiber,

     Y-shaped fiber: 2 fibers

    360~2500nm1000um2mA-2 core, B1-1 core, B2-1 coreA-SMA905 / B1-SMA905 / B2-SMA905
    V1000-Y*2-S/S-L2200 ~ 1100 nm1000um2mA-2 core, B1-1 core, B2-1 coreA-SMA905 / B1-SMA905 / B2-SMA905
    DV600-Y*7-S/S-L2190~1100 nm600um2mA-7 core, B1-1 core, B2-6 coreA-SMA905 / B1-SMA905 / B2-SMA905
    I600-Y*7-S/S-L2360~2500nm600um2mA-7 core, B1-1 core, B2-6 coreA-SMA905 / B1-SMA905 / B2-SMA905
    DV600-1*7-S/S-L2multi-core optical fiber190~1100 nm600um2m7SMA905-SMA905
    I600-1*7-S/S-L2360~2500nm600um2m7SMA905-SMA905



    Integral ball

    Wavelength 250 - 2500 nm

    Output ports can be customized

    Black anodized aluminum alloy shell

    Gilded Integral Ball

    Wavelength 1000 - 5000 nm

    Electrochemical Coating with Diffuse Reflective Film

    Halogen light source

    Wavelength 360 - 2500 nm

    Long service life, usually 10000 hours

    SMA905 interface

    Deuterium lamp light source

    Wavelength 190 - 400 nm

    Long service life, usually 1500 hours

    SMA905 interface

    Sample holder for transmittance measurementSample holder with reflectivity measurement bracket
    Colorimetric dish rackOptical support for measuring transmission and reflection samples

    Fiber optic attenuator

    Wavelength 200 - 2500 nm

    Adjustable slit for attenuation

    Fiber collimator

    Wavelength 185 - 2500 nm

    Numerical aperture 0.22 - 0.37 NA,

    Core diameter ≥ 100 µm



4 products in total Add Contrast

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