Product Overview

To facilitate researchers, system developers, and product engineers in the field of optical fiber sensing to more conveniently build their own Distributed Acoustic Sensing (DAS) systems, Shanghai Kunlian Technology introduces the All-in-One DAS Module. This module integrates key optoelectronic components from traditional DAS systems—such as complex light sources, modulation units, amplifiers, and control circuits—into a compact structure roughly the size of a "thick book," significantly simplifying the system setup process.

Users only need to pair it with a high-speed data acquisition card installed in an industrial PC (or standard PC) to complete all hardware preparations for the DAS system. Subsequent development efforts can then focus on implementing the host computer software, signal processing algorithms, and system application logic. Shanghai Kunlian Technology also provides complimentary technical support services to assist you in rapidly validating and integrating the DAS system.

Target Users

Optical Fiber Sensing System Manufacturers: Those with existing DAS or DVS product lines who wish to reduce hardware costs, achieve system redesign, or optimization while ensuring performance.

System Integrators and Solution Providers: Organizations with industry expertise, implementation resources, and software development capabilities, aiming to transition from procuring others' products to launching their own branded DAS systems.

Universities and Research Institutions: Entities with algorithm and signal processing expertise, in the process of building distributed optical fiber sensing experimental platforms, seeking to implement a complete system within a constrained budget.

Other Developers and Innovation Teams: Those needing to rapidly validate concepts or prototype systems, seeking a plug-and-play DAS core module as a starting point for R&D.

Product Features

✅ High Integration, One-Stop Solution

The module internally integrates key components of a DAS system, including:

High-Coherence Laser (Narrow Linewidth Laser)

Acousto-Optic Modulator (AOM)

Erbium-Doped Fiber Amplifier (EDFA)

Optional Raman Amplification Module (Raman)

Control Logic and Synchronization Interface

All components are designed for professional system integration. Internal optical paths, power control, and temperature control systems are precisely calibrated to ensure stable operation out of the box.

✅ Modular Design for Flexible Adaptation to Various Scenarios

To meet performance requirements such as sensing distance and signal-to-noise ratio (SNR) for different application scenarios (e.g., urban monitoring, oil & gas pipelines, high-speed rail lines), the DAS module supports multiple configuration options and customization:

Long-Range Mode (paired with high-gain EDFA and Raman amplifier)

Short/Medium-Range Cost-Effective Mode

Multi-Channel Synchronous Emission Mode

✅ Multiple Control Methods for Easy Integration

Supports standardized communication interfaces (e.g., TTL, RS232, Ethernet control). Provided with accompanying APIs and control protocol documentation for easy host computer integration and secondary development.

✅ Stable and Reliable, Adaptable to Harsh Environments

All optical components are selected from industrial-grade original manufacturer parts, suitable for wide-temperature and wide-input-voltage power environments.

High-stability packaging suitable for industrial settings with vibration, dust, and temperature variations.

The system features self-diagnostic functions such as automatic power adjustment, temperature control protection, and status monitoring.