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Bristol 238 Optical Wavelength Meter

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Bristol 238 Optical Wavelength Meter

Bristol 238 Optical Wavelength Meter

Reliable accuracy over a broad wavelength range 700 to 1650nm

Bristol Instruments



The 238 Series Optical Wavelength Meter from Bristol Instruments is designed for the precise wavelength characterisation of tunable transmitter lasers, DFB lasers, and VCSELs used in applications such as fibre-optic communications, data storage, and 3D sensing.


Features such as reliable accuracy, broad wavelength coverage, straightforward operation, and rugged design satisfy the needs of both the R&D scientist and the manufacturing engineer.



  • Wavelength accuracy as high as ± 0.3 pm
  • Continuous calibration with built-in wavelength standard
  • Measurement confidence level ? 99.7%
  • Traceable to NIST standards
  • Power measured to an accuracy of ± 0.5 dB
  • Broad operational range of 700 to 1650 nm
  • Measurement rate of 15 Hz
  • Convenient touch-screen display reports measurement data in a variety of formats
  • Interfacing via SCPI using USB, Ethernet, or GPIB
  • Rugged design for manufacturing environments
  • 5-year warranty covers all parts and labor

For further information please contact us or download the datasheet.



         238 datasheet                                                       Read more on Bristol's website