Long-Distance Fully Integrated DAS Optical Module (Including AOM Driver)

Long-Distance Fully Integrated DAS Optical Module (Including AOM Driver)

Supplier
Nbsuola
Category
Transmitters and Receivers
Origin
China

This mature solution for distributed acoustic sensing (DAS) uses an ultranarrow-linewidth laser, acousto-optic frequency shifter and Raman amplifier as core components in an optimized optomechanical/electrical design. Serial configuration, high integration, environmental interference resistance, compact size and convenient use are provided. Raman amplification increases signal strength and sensing distance. Specific designs and specifications can be customized for sensor manufacturers.

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Overview

This mature solution for distributed acoustic sensing (DAS) uses an ultranarrow-linewidth laser, acousto-optic frequency shifter and Raman amplifier as core components in an optimized optomechanical/electrical design. Serial configuration, high integration, environmental interference resistance, compact size and convenient use are provided. Raman amplification increases signal strength and sensing distance. Specific designs and specifications can be customized for sensor manufacturers.

Specifications

ParameterValue
Sensing distance LTypical :50 km
Number of Detection Channels NSingle-channel
Modulation ModeExternal Modulation
Narrow linewidth Laser - Center wavelength λTypical :1550.12 nm
Narrow-Linewidth Laser - Equivalent Spectral Linewidth Δλ1Typical :3 kHz
Narrow linewidth Laser - Laser RIN NoiseTypical :-105 dB/Hz
Acousto-Optic Frequency Shifter-AOM Frequency ShiftTypical :150 MHz
Acousto-Optic Frequency Shifter - Extinction Ratio ERMin :50 dB
Acousto-Optic Frequency Shifter - Pulse Width τMin :10 ns; Typical :100 ns; Max :300 ns
Acousto-Optic Frequency Shifter - Pulsed Frequency PFTypical :2 kHz
BPD - Bandwidth BWMin :0.1 MHz; Typical :100 MHz; Max :120 MHz
BPD - Photoelectric Conversion Gain AsTypical :4×10⁴ V/W
BPD - Noise UnTypical :5 mW
BPD - Output Impedance KTypical :50 ohm
Raman Optical Amplifier - Pump Wavelength Range λ0Typical :1450 nm
Raman Optical Amplifier - Pump Output Optical Power Pout [Customizable]Typical :500 mW
Raman Optical Amplifier - Raman Gain [Customizable]Typical :12 dB
Structure Dimensions [Modular ; Dimensions Customizable]208(190)*170*55 mm
Output Pigtail type [Modular]SM-28e FC/APC
Communication Interface Type [Modular ; Customizable]RS-232
Supply voltage [Modular]DC +12V/GND
Electrical power consumption [Modular; at Room Temperature]≤45 W

Applications

Φ-OTDR; Distributed Fiber Sensing .

Key Features

High Signal-to-Noise Ratio ; Operating Environment Temperature :-10~55°C.

Datasheet

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Supplier Information

Nb
Nbsuola
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Ningbo Suola Technology Co., Ltd., founded in 2019, is headquartered in Fenghua District, Ningbo, with its R&D center in Linping District, Hangzhou. As a technology-oriented enterprise specializing in the optoelectronic field, the company focuses on lasers, optical amplifiers, photodetectors, optical modulators, and photoelectric sensing technologies, providing customers with professional optoelectronic devices, integrated optoelectronic modules, and overall sensing solutions. Its main business includes laser series, optical amplifier series, photodetector series, optical modulator series, DAS/DVS integrated optical modules, DTS integrated optical modules, wind/weather lidar integrated optical modules, as well as sensor research projects and customized product development.

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Long-Distance Fully Integrated DAS Optical Module (Including AOM Driver)
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