The EXFO IQS-5240S/BP is a high-performance optical spectrum analyzer engineered for precise characterization of DWDM, ROADM, and advanced modulation format systems. It delivers sub-picometer resolution, greater than 35 dB dynamic range, and fast measurement times for in-band OSNR and Pol-Mux OSNR analysis up to 400 Gbit/s. The instrument supports comprehensive WDM investigation, laser characterization, and spectral transmittance measurement across the C-band, making it suitable for network commissioning, field validation, and laboratory testing applications.
## Technical Specifications
**Optical Performance**
• Wavelength Range: 1520 nm to 1610 nm
• Resolution Bandwidth (RBW): 33 pm (approx. 4.5 GHz) FWHM
• Dynamic Range (OSNR): Greater than 35 dB
• OSNR Measurement Uncertainty: ±0.5 dB
• OSNR Repeatability: ±0.2 dB
• Rejection Ratio: -35 dBc at 0.1 nm
• Noise-Equivalent Bandwidth (NEB): Calibrated 1250 nm to 1650 nm
• Input Power Handling: -10 dBm at 1550 nm
**Signal Analysis**
• In-Band OSNR Measurement: Up to 100 Gbit/s data signals; measurement time less than 6 seconds
• Pol-Mux OSNR Measurement: Supports data signals up to 400 Gbit/s; 1 minute 20 seconds (all channels) or less than 5 seconds (single channel off)
• Modulation Support: Any format including DP-QPSK and DP-BPSK
• Channel Spacing: 12.5 GHz DWDM to CWDM
## Key Features
• WDM Investigator: Signal and noise per-channel analysis with impairment detection (crosstalk, non-linear effects, carrier leakage, PMD pulse spreading)
• DFB Laser Analysis: Characterization of central wavelength, peak power, bandwidth, and SMSR
• Fabry-Perot Laser Analysis: Automatic characterization for central wavelength, RMS width, and FWHM
• Spectral Transmittance: Insertion loss and channel isolation measurement at multiple power levels
• Commissioning Assistant: Pol-Mux OSNR support with IEC-61282-12 and CCSA YD/T 2147-2010 compliance
## Typical Applications
• DWDM and ROADM system characterization
• Spectral component measurement and signal quality validation
• Network commissioning and turn-up validation
• In-band OSNR and Pol-Mux OSNR measurements
• DFB and Fabry-Perot laser source qualification
## Compatibility & Integration
The IQS-5240S/BP operates on the FTB-2 and FTB-2 Pro platforms, supporting both field and laboratory deployment scenarios.

















