Spectral testing in lab and manufacturing environments
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Optical spectrum analyzers — FTBx-5245


Highly accurate, easy-to-use intelligent optical spectrum analyzers (OSAs) for analysis of CWDM and DWDM networks.

Technical information

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Key features

  • Ideal for laboratory and manufacturing
  • Flexibility to analyze WDM, EDFA, drift, spectral transmittance and Fabry-Perot and DFB laser
  • Wide range of measurements (SMSR, FWHM spectral width, 20 dB linewidth)
  • First third-party 40G/100G/200G Pol-Mux OSNR option on the market; compliant with the IEC 61282-12 standard
  • Intelligent in-band OSNR measurement for 40 Gbit/s and ROADM deployments
  • Compliant with recommendation ITU-T G.697
  • One-button operation for easy setup and automatic measurement
  • Fast and cost-effective in-service PMD analysis option
  • Truly portable spectral characterization for DWDM network commissioning and troubleshooting


The FTBx-5245 is an easy-to-use OSA offering a wide range of measurement modes tailored to the needs of users working in R&D and manufacturing.

Powerful features

Laser Analysis

Make sure that your transmitters are within specifications. With the DFB Laser Analysis feature, you can characterize a DFB laser source for central wavelength, peak power, bandwidth, SMSR, and much more.

Automatically characterize Fabry-Perot lasers for central wavelength, RMS width and full-width half-max (FWHM).

Accurate Spectral Transmittance

With the advent of larger spectral content through the implementation of 100G+ signals, knowing the bandwidth of a given filter is critical. The Spectral Transmittance software feature compares the filtered wavelength to the nominal one, showing insertion loss, channel isolation and bandwidth at different power levels.

SCPI Commands

It is possible to control the OSA remotely with SCPI commands for the WDM, Fabry-Perot, DFB and spectral transmittance modes.

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