The Exfo M9734-EA is a passive fiber optic depolarizer designed to reduce the degree of polarization (DOP) of light signals in fiber optic systems. By randomizing incoming polarization states, it minimizes polarization-dependent loss (PDL) and improves signal integrity and measurement repeatability—critical for coherent optical communications, fiber optic sensing, and optical component characterization where polarization-dependent effects compromise accuracy and system performance.
Technical Specifications
• Operating Wavelength: 1520 nm to 1620 nm
• Fiber Type: SMF-28
• Typical Insertion Loss: 3 dB
• Typical Degree of Polarization (DOP): 10% to 15% (measured at 1550 nm with EXFO IQ-2600 Tunable Laser Source)
• Typical Polarization Dependent Loss (PDL): 0.1 dB
– Key Features
• Passive optical design using single-mode optical fibers
• Effective depolarization for low- and medium-coherence sources including Fabry-Perot laser diodes, DFB lasers, and EXFO IQ-2600 and FLS-2600 tunable laser families
• Multiple connector options: APC/DIN 47256, APC/FC narrow key, APC/SC, APC/E-2000, and UPC/DIN 47256
• Integrates as a one-slot module in EXFO IQ-200 Optical Test System
– Typical Applications
• Optical power and spectral measurements where polarization sensitivity affects accuracy
• High-speed coherent communication systems requiring PDL mitigation
• Fiber optic sensor systems vulnerable to polarization variations
• Passive and active component characterization (amplifiers, WDM devices) with consistent input polarization conditioning
– Compatibility & Integration
The M9734-EA operates with high-power LEDs (SLDs), Fabry-Perot laser diodes, DFB lasers, and EXFO’s IQ-2600 and FLS-2600 tunable laser source families. Standard single-mode fiber connectivity enables field integration across test benches and automated optical test systems.
