EXFO LTB-8 Variable Optical Attenuator Product Overview
The EXFO LTB-8 is a high-precision variable optical attenuator specifically designed for optical communication R&D, production testing, and system maintenance. With its exceptional attenuation accuracy, low insertion loss characteristics, and compact portable design, it serves as an ideal tool for optical component testing, optical module verification, and fiber network maintenance. Below is a detailed introduction covering four key aspects: core specifications, features, application scenarios, and compatibility.
1. Key Specifications Table
| Parameter Category | Technical Specifications | Notes |
|---|
| Wavelength Range | 1250-1650 nm | Covers single-mode fiber communication bands |
| Attenuation Range | 0-60 dB | Minimum step size 0.1 dB |
| Insertion Loss | ≤1.5 dB (typical) | Includes connector loss |
| Return Loss | ≥50 dB | High reflection suppression design |
| Resolution | 0.01 dB | High-precision adjustment mode |
| Repeatability | ±0.05 dB | Mechanical rotary adjustment structure |
| Connector Type | FC/APC (standard) | Optional FC/PC or SC/APC |
| Maximum Input Power | 500 mW | Supports high-power test environments |
| Communication Interface | USB/RS-232 | Supports SCPI remote control |
| Dimensions & Weight | 45×25×25 mm, approx. 80 g | Portable design |
2. Key Features
High-Precision Attenuation Control
Features a precision mechanical adjustment structure enabling 0.1 dB high-resolution attenuation control to ensure test data accuracy.
Excellent Return Loss Performance
≥50 dB return loss characteristics effectively suppress reflected light interference in test systems.
Wide Input Power Range
Supports input optical power up to 500 mW, meeting high-power laser testing requirements.
Compact and Portable Design
Lightweight body weighing only 80 g, ideal for field testing and mobile use.
Automation Control Interface
Supports SCPI commands via USB/RS-232 for integration into automated test systems.
3. Application Scenarios & Recommended Configurations
| Application Field | Testing Requirements | Recommended Accessories |
|---|
| Optical Component Testing | IL/RL measurement | EXFO FLS-6000 Light Source + PM-100 Power Meter |
| Optical Module Verification | Receiver sensitivity testing | EXFO IQS-6000 Test Platform |
| Fiber Network Maintenance | System power adjustment & monitoring | EXFO FTB-1 Test Platform |
| Lab R&D | Optical path power control | EXFO OSICS Platform |
4. Compatibility Statement
Mechanical Compatibility: Compatible with standard FC/APC connectors, optional FC/PC or SC/APC interfaces
System Compatibility: Seamless integration with EXFO full-range test platforms (e.g., FTB, IQS series)
Software Compatibility: Supports EXFO TestFlow automated test software
5. Product Advantages Summary
Precision & Reliability: 0.1 dB high-resolution attenuation ensures accurate test data
Flexibility & Portability: Compact lightweight design suitable for both lab and field use
Broad Compatibility: Adaptable to various test scenarios and system configurations
Cost-Effectiveness: Excellent performance-to-price ratio among comparable products
