Distributed Optical Fiber Vibration Sensor Module
Distributed Optical Fiber Vibration Sensor Module with integrated narrow linewidth laser, AOM, EDFA and balanced photodetector outputting an electrical signal.
Huang
Email: Hqy@ybphotonics.com
Product Info
Introduction
The DVS integrated module of distributed fiber optic vibration sensing system integrates ultra-narrow linewidth light source, AOM acousto-optic modulator, pulsed EDFA, optical circulator, Raman amplifier, DVS coherent receiver module, etc., which only needs to be matched with a high-speed data acquisition card to make a set of DVS distributed vibration measurement system.
The module is highly integrated, small in size, and uses an independent intellectual property coherent receiver module with high coherent detection signal-to-noise ratio, which increases the sensing distance of the distributed fiber optic vibration sensing system.
The module is specially designed to provide high-quality supporting products and solutions for distributed fiber optic vibration sensing and perimeter security equipment vendors.
Features
- Highly integrated (UNL, AOM, EDFA, Raman)
- Modular design allows for module selection based on sensing distance
- High stability and reliability
- Working environment temperature: -20~60℃
- Customizable design for form structure
Applications
- φ-OTDR system
- DVS Fiber Distributed Vibration Measurement
- Nonlinear optics research
Suitable users
- You are a university or researcher with software programming and signal processing skills and need to build your own distributed fiber optic sensing experimental platform, but have limited funds, so you want to implement your own experimental platform at low cost.
- You are a manufacturer of fiber optic sensing systems, familiar with the industry sector, and have your own DAS or DVS system, but the hardware cost is high and you want to reduce the cost.
- You are a system integrator with business resources and software development staff. Previously, you have bought other people's products for implementation and do not have your own products, and now you want to develop your own DAS or DVS system.
- OEM DVS/DAS
- Other cases.
Specifications
Parameter symbol minimum Typical values maximum unit Pulse width Pulse 50 500 ns Operating wavelength ℷc 1525 1550 1565 nm Measure distances D 60 Km Power Pp 9 15 W Long-term output power
Stability ∆p 0.02 dB Detection wavelength range Ds 1100 1700 nm Probe responsiveness Dr 10 mv/nA Line width Lw 3 kHz Wavelength stability Ws 1 pm Side-mode rejection ratio SMSR 50 dB Relative intensity noise RIN -135 dB/Hz Operating voltage Wv 4.5 5.5 V Operating temperature Tw -20 60 C Storage temperature Ts -40 80 °C External control interface RS232 size L*W*H 202*160*40 MM
Mechanical drawings
The following is the dimensional drawing of DVS integrated module and acousto-optic modulator driver, the overall size of DAS integrated module is 200*160*40mm, without connectors and fiber optics, in order to ensure the thermal performance of the module, when installing the module, you should make sure To ensure the heat dissipation performance of the module, a good ventilation environment should be ensured when installing the module. The fiber optic flange and coaxial connector should be protected by the corresponding protective cap when not in use to avoid soiling the connector. When the module is not in use, please protect them with the corresponding protective caps to avoid dirtying the connectors.
Fiber optic vibration monitoring system hardware
FAQ
Q：What is the spatial resolution of your 40KM DVS module and what about the 20KM one?
A：The spatial resolution is related to the acquisition parameters of the acquisition card. In our equipment, the spatial resolution of 40KM is 5m, 20KM is 2m, and 10KM can be 1.5m.
Q：DVS and DAS, what is the difference between them?
A: dvs is a qualitative measurement, detecting vibration by amplitude, but amplitude and vibration are not linear, das is phase demodulation, the demodulated phase is completely linear with vibration and can completely recover the vibration or sound signal.
Q：Buy this module can be used directly, do you need anything else?
A: Buying this module directly is not enough to make up a complete distributed fiber optic vibration monitoring system, you also need to buy the acquisition card, and industrial control machine (computer) hardware. After the hardware is ready, you also need to develop your own software for distributed fiber optic sensing.
Screenshot of real test
Screenshots of the management software
Screenshot of the DVS integration module in action
Related content
- [Tutorial] How to wire the DVS/DAS system installation process?
- Distributed Fiber Optic Vibration Sensing Module
- Distributed fiber optic acoustic sensing DAS module
- 100MSps high speed DAQ card for DVS
- Dual Port 250MSps High-Speed DAQ For DAS
- ultra-narrow linewidth 3k 1550nm laser
- Fiber optic vibration sensing DVS
The DVS integrated module of distributed fiber optic vibration sensing system integrates ultra-narrow linewidth light source, AOM acousto-optic modulator, pulsed EDFA, optical circulator, Raman amplifier, DVS coherent receiver module, etc., which only needs to be matched with a high-speed data acquisition card to make a set of DVS distributed vibration measurement system.
The module is highly integrated, small in size, and uses an independent intellectual property coherent receiver module with high coherent detection signal-to-noise ratio, which increases the sensing distance of the distributed fiber optic vibration sensing system.
The module is specially designed to provide high-quality supporting products and solutions for distributed fiber optic vibration sensing and perimeter security equipment vendors.
Features
- Highly integrated (UNL, AOM, EDFA, Raman)
- Modular design allows for module selection based on sensing distance
- High stability and reliability
- Working environment temperature: -20~60℃
- Customizable design for form structure
Applications
- φ-OTDR system
- DVS Fiber Distributed Vibration Measurement
- Nonlinear optics research
Suitable users
- You are a university or researcher with software programming and signal processing skills and need to build your own distributed fiber optic sensing experimental platform, but have limited funds, so you want to implement your own experimental platform at low cost.
- You are a manufacturer of fiber optic sensing systems, familiar with the industry sector, and have your own DAS or DVS system, but the hardware cost is high and you want to reduce the cost.
- You are a system integrator with business resources and software development staff. Previously, you have bought other people's products for implementation and do not have your own products, and now you want to develop your own DAS or DVS system.
- OEM DVS/DAS
- Other cases.
Specifications
| Parameter | symbol | minimum | Typical values | maximum | unit |
|---|---|---|---|---|---|
| Pulse width | Pulse | 50 | 500 | ns | |
| Operating wavelength | ℷc | 1525 | 1550 | 1565 | nm |
| Measure distances | D | 60 | Km | ||
| Power | Pp | 9 | 15 | W | |
| Long-term output power Stability | ∆p | 0.02 | dB | ||
| Detection wavelength range | Ds | 1100 | 1700 | nm | |
| Probe responsiveness | Dr | 10 | mv/nA | ||
| Line width | Lw | 3 | kHz | ||
| Wavelength stability | Ws | 1 | pm | ||
| Side-mode rejection ratio | SMSR | 50 | dB | ||
| Relative intensity noise | RIN | -135 | dB/Hz | ||
| Operating voltage | Wv | 4.5 | 5.5 | V | |
| Operating temperature | Tw | -20 | 60 | C | |
| Storage temperature | Ts | -40 | 80 | °C | |
| External control interface | RS232 | ||||
| size | L*W*H | 202*160*40 | MM | ||
Mechanical drawings
The following is the dimensional drawing of DVS integrated module and acousto-optic modulator driver, the overall size of DAS integrated module is 200*160*40mm, without connectors and fiber optics, in order to ensure the thermal performance of the module, when installing the module, you should make sure To ensure the heat dissipation performance of the module, a good ventilation environment should be ensured when installing the module. The fiber optic flange and coaxial connector should be protected by the corresponding protective cap when not in use to avoid soiling the connector. When the module is not in use, please protect them with the corresponding protective caps to avoid dirtying the connectors.
Fiber optic vibration monitoring system hardware
FAQ
Q：What is the spatial resolution of your 40KM DVS module and what about the 20KM one?
A：The spatial resolution is related to the acquisition parameters of the acquisition card. In our equipment, the spatial resolution of 40KM is 5m, 20KM is 2m, and 10KM can be 1.5m.
Q：DVS and DAS, what is the difference between them?
A: dvs is a qualitative measurement, detecting vibration by amplitude, but amplitude and vibration are not linear, das is phase demodulation, the demodulated phase is completely linear with vibration and can completely recover the vibration or sound signal.
Q：Buy this module can be used directly, do you need anything else?
A: Buying this module directly is not enough to make up a complete distributed fiber optic vibration monitoring system, you also need to buy the acquisition card, and industrial control machine (computer) hardware. After the hardware is ready, you also need to develop your own software for distributed fiber optic sensing.
Screenshot of real test
Screenshots of the management software
Screenshot of the DVS integration module in action
Related content
- [Tutorial] How to wire the DVS/DAS system installation process?
- Distributed Fiber Optic Vibration Sensing Module
- Distributed fiber optic acoustic sensing DAS module
- 100MSps high speed DAQ card for DVS
- Dual Port 250MSps High-Speed DAQ For DAS
- ultra-narrow linewidth 3k 1550nm laser
- Fiber optic vibration sensing DVS
