DAS Integrated Module
The DAS integrated module serves phase-sensitive optical time-domain reflectometry (φ-OTDR) fiber-sensing systems. It integrates a narrow-linewidth laser, low-noise fiber amplifier, highly stable acousto-optic modulator, and high-bandwidth balanced detector with integrated drive electronics for stable operation and signal output. Stable construction, mature processing, and volume production provide output insensitive to vibration and temperature changes for demanding environments.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Sensing Distance L | max ：40 |
| Center Wavelength λₚ | typical ：1550 |
| Spectral Linewidth Δλ | max ：3 |
| Pulse Width W_P | min ：20； max ：100 |
| Rising Edge T_R | max ：10 |
| Falling Edge T_D | max ：10 |
| Repetition rate F_R | min ：2； max ：20 |
| Peak Output Pulse Power P_P | typical ：23； max ：30 |
| AOM Extinction Ratio R_E | min ：50 |
| AOM Frequency Shift F_S | typical ：80 |
| AOM Input Impedance I_I | typical ：50 |
| AOM Modulation Method | External modulation |
| BPD Operating Wavelength λ | min ：800； max ：1700 |
| BPD Gain | typical ：30K |
| BPD Output Signal Bandwidth B_OS | min ：1； max ：100 |
| BPD Coupling Method | AC |
| Pigtail Type | SMF 28e,FC/APC Connector |
| Power Supply / Communication Interface | 12V / RS232，DB9 |
| Operating Temperature Range | -15~+50℃ |
Applications
Key Features
Datasheet
Supplier Information
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