Exfo FTB-5800 Chromatic Dispersion Analyzer

The EXFO FTB-5800 Chromatic Dispersion Analyzer is a module for precise characterization of chromatic dispersion in optical fibers across 10 Gbit/s, 40 Gbit/s, and 100 Gbit/s applications. Using the phase-shift measurement method, it analyzes phase variations at fixed frequencies to calculate CD with exceptional repeatability. The analyzer's "no communication" architecture between source and receiver enables testing of complete fiber links, including through cascaded amplifiers and one-way devices like EDFAs, without compromising measurement accuracy.

Technical Specifications

Measurement Method: Phase-shift method

Data Rates: 10 Gbit/s (OC-192/STM-64), 40 Gbit/s (OC-768/STM-256), 100 Gbit/s ready

Wavelength Range: C and L bands

Dispersion Repeatability: ≤0.04 ps/nm

Zero-Dispersion Wavelength (λ₀) Repeatability: ≤0.1 nm

Dispersion Slope Repeatability at λ₀: ≤0.03 (%)

Measurement Time: <1 second per point

Fiber Length Range: 5400 km

Dynamic Range: 47 dB (with FLS-5800 source)

Maximum Cascaded Amplifiers: 250 over >12,000 km link length

Key Features

Tests complete optical links without sectioning, eliminating cumulative error

Field-ready deployment reduces measurement time and manipulation errors

Intuitive software for real-time acquisition, analysis, and data visualization

FastReporter offline analysis tool with PDF, Excel, and HTML report generation

Customizable threshold detection for dispersion and slope parameters at λ₀

Compatible with all fiber types

Typical Applications

Network commissioning and acceptance testing at multiple data rates

Troubleshooting transmission impairments caused by chromatic dispersion

Maintenance and long-term monitoring of installed fiber routes

Performance verification through EDFAs and amplified spans

Validation of nonlinear effect compensation strategies

Compatibility & Integration Designed as a four-slot module for EXFO FTB-200 and FTB-500 platforms, with compatibility extended to FTB-400 Universal Test System and FTB-4 Pro platform. Allows simultaneous multi-parameter testing within host platforms.