WP 638X

Spectrometer by Wasatch Photonics

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The WP 638X from Wasatch Photonics is a Raman Spectrometer that operates at a wavelength of 638 nm. It is available in two detector options: TEC-regulated (R) and TEC-cooled (C). This spectrometer has a spectral range of 270 cm-1 - 3500 cm-1 (C) and 270 cm-1 - 3800 cm-1 (R). It has an optical resolution of 8 cm-1 (f/1.8) & 10 cm-1 (f/1.3) (C) and 7 cm-1 (f/1.8) & 9 cm-1 (f/1.3) (R). This spectrometer has multimode laser & probe options that deliver an output power of 200 mW with a minimum integration time of 8 ms.

The WP 638X has fully integrated sampling optics with a 22 mm working distance and 120 &mum laser spot size on the sample. It has a modular & OEM inside design, user-configurable input coupling and slit features. This spectrometer supports FC/PC fiber connectors with an input numerical aperture of f/1.4 and f/1.8. It can be controlled via a USB 2.0 Type B connector interface, ENLIGHTENTM software, and SDK controls. This spectrometer is available in a compact package that measures 24.3 cm x 17.2 cm x 6.0 cm and is ideal for Raman spectroscopy, research & OEM applications.

Product Specifications

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Product Details

  • Part Number
    WP 638X
  • Manufacturer
    Wasatch Photonics
  • Description
    638 nm Raman Spectrometer for OEM & Research Applications

Connections & Interface

  • Fiber optic connector
    SMA 905, FC/PC
  • Interface
    USB 2.0

General Parameters

  • Measuring Techniques
    Raman Spectroscopy, Transmission
  • Spectrometer Type
    Modular, Benchtop
  • Wavelength Range
    638 nm
  • Spectral Resolution
    7 to 10 cm-1
  • Spectrum Band
  • Integration Time
    8 ms
  • Aperture(f-number)
    f/1.3, f/1.8
  • Entrance Slit
    25 µm
  • Laser Output power
    200 mW
  • Note
    Spectral Range: 270 to 3800 cm-1, Working Distance: 22 mm, Laser Spot Size: 120 µm


  • Operating Temperature display
    0 to 40 Degree C

Physical Properties

  • Weight
    <2.3 kg
  • Dimension
    24.3 x 17.2 x 6 cm

Technical Documents

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