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DAS Integrated Optical Module（Raman）
DAS Integrated Optical Module（Raman）

DAS Integrated Optical Module（Raman）

Features

 

  • Highly Integrated  (UNL, AOM, EDFA, BPD，RAMAN)
  • Working Temperature: -10~50℃
  • High Reliability and Stability
  • Flexible Control Mode
  • Single / Dual Channel
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  • Product Detail

DAS Integrated Optical Module

 

Distributed fiber Acoustic Sensing（DAS），based on the principle of phase OTDR, using a single ordinary optical fiber as a transmission, the Rayleigh scattered light inside the fiber to detect, obtain phase and frequency information, to achieve the detection of sound, vibration and other signals, widely used in oil, gas pipelines, perimeter security, high-speed rail transit and other fields.

 

For the field of distributed fiber optic acoustic sensing, FIBERWDM has launched DAS integrated module, which integrates self-developed ultra-narrow linewidth laser, linewidth <3KHz, 80M_AOM, pulse amplifier, Raman amplifier, balanced photodetector. The module is highly integrated, with small size and high reliability.

 

Features

  • Highly Integrated  (UNL, AOM, EDFA, BPD，RAMAN)
  • Working Temperature: -10~50℃
  • High Reliability and Stability
  • Flexible Control Mode
  • Single / Dual Channel

Applications

  • Oil and Gas Pipelines
  • Perimeter Security
  • High-speed Rail Transit
  • Power Cables

 

Optical Path

 

DAS optical module

 

Product Model: FW-RA-DASXXX

Parameters

Min

Typ.

Max

Unit

Sensing Distance

 - 60 60 Km

Center Wavelength

 -

1550.12

 - nm

Linewidth

 - - 3

Khz

Pulse Width

 60 100 - ns

Repetition Rate

 - 2 20

KHz

Raman Optical Power

 - - 26

dBm

Peak Pulse Optical Power

 - 23 30

dBm

Input Impedance

 - 50 - Ohm

Shift Frequency

 - 80 -

MHz

Wavelength

800~1700

nm

Gain

 60K

V/A

Coupling Mode

 AC

-

Bandwidth

 100

MHz

Modulation Mode

External

-

Note:1)Single and Dual channel can be selectable; XXX: 399-Single Channel, 398-Dual Channel

         2)The signal-to-noise ratio at the tail is 4dB

 

Parameters

Indicator

Remark

Electrical

Power Supply

DC +12V/GND

  

Power Consumption

<36W

Full-temperature

Mechanical

Dimensions

208*150*38mm

  

Pigtail Type

 SMF

Communication

Connector

 4PIN

Level

RS232

Interface

Read and Set Parameter

  

 

Parameter

Min

Max

Unit

Working Temperature

 -10 +50 ℃

Storage Temperature

 -40 +85 ℃

Related Humidity

 5 95 %

 

Mechanical Dimension

DAS optical module

 

For ordering information and custom solutions, please contact us: sales@fiberwdm.com

 

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