The EXFO VBR-310 is a precision variable back-reflector designed to simulate controlled reflections in fiber optic systems. It enables engineers to test optical components, connectors, and complete systems by providing variable, repeatable reflection sources. The instrument’s continuously adjustable reflection control allows accurate measurement of return loss, connector quality, and system performance across diverse reflective conditions. Field deployment and laboratory characterization benefit from its compact, portable design and high repeatability.
Technical Specifications
Optical Characteristics
• Type: Variable Back-Reflector
• Wavelength Range: Compatible with single-mode fiber (SMF) and multimode fiber (MMF); wavelength support depends on connector type and configuration
• Reflection Control: Continuously adjustable for precise back-reflection level setting
• Reflection Range: Simulates low to high reflection levels for comprehensive testing
• Return Loss Simulation: Accurate return loss simulation across component and system testing
Performance Metrics
• Repeatability: High-degree consistency in reflection settings for comparable test results
• Accuracy: Precise optical reflection simulation
• Stability: Maintains stable reflection levels throughout measurement sequences
Physical & Environmental
• Connectors: Industry-standard optical connectors (FC/UPC, FC/APC, SC/UPC, SC/APC, LC); field-replaceable adapters
• Design: Compact, portable form factor for benchtop and field use
• Operating Temperature: Standard laboratory and field environmental conditions
• Adjustment: Precision mechanical control with visual indicator
– Key Features
• Continuous reflection adjustment for fine-tuning across wide dynamic range
• Multiple connector compatibility with field-replaceable adapters
• High measurement repeatability and data integrity
• Lightweight construction enables portable deployment
– Typical Applications
• Return loss characterization of optical components and systems
• Connector performance evaluation including insertion loss and reflection assessment
• System performance validation under real-world reflection scenarios
• Manufacturing quality control and field service diagnostics
– Compatibility & Integration
The VBR-310 supports industry-standard fiber optic connectors across both single-mode and multimode configurations. Field-replaceable connector adapters enable versatile integration into existing test benches and service workflows.
