DAS Integrated Module with 3-Meter Spatial Resolution
This DAS integrated module achieves a 20ns pulse width output at a monitoring distance of 10km with a spatial resolution of 3 meters, making it a DAS module specifically designed for high spatial resolution applications.
Huang
Email: Hqy@ybphotonics.com
Product Info
Introduction
This DAS integrated module is specifically designed for short-range, high-spatial-resolution applications. It achieves a 20ns pulse width output with a measured spatial resolution of 3 meters and a monitoring distance of 10km. Operating at a frequency signal of 80MHz, it requires only a single data acquisition card with a 250MHz sampling rate for operation. For monitoring distances of 30km or greater, the spatial resolution is 10 meters.
Params
Params Value Note Monitoring distance
＜40km Supports monitoring at distances up to 10 km with a 20 ns pulse width, with a spatial resolution tested at 3 meters.
Pulse width value
20ns-200ns
Spatial resolution
3m-10m
Center frequency
80MHz
Channels 1/2
Output Signal Analog electrical signal
Output Interface
SMA Female Connector
Supply Voltage
5V
Communication Protocol
Modbus
Mechanical Dimension Drawing
The following dimensions apply to the ultra-narrow pulse integrated DAS/DVS module and its acoustic-optical modulator driver. The overall module dimensions are 225 × 160 × 40 mm (excluding connectors and fiber). To ensure adequate thermal dissipation, install the module in an environment with sufficient ventilation. When not in use, cover the fiber flange and coaxial connectors with their respective protective caps to prevent contamination.
Interface Definition
The interface definition for the ultra-narrow pulse integrated DAS/DVS module is as follows:
Interface Type
Screen printing
Instruction Green Plug-in Terminal
5V DC power supply +5V
GND DC Power Supply GND
White plug-in terminal
COM Serial port, TTL level, communicates with the computer for parameter adjustment
SMA Modulation Pulse-Modulated Signal Input
Fiber Optic Interface
Sensor1 Connect to sensor fiber 1, default FC/APC connector. Single-channel products use this interface.
Fiber Optic Interface Sensor2 Connect to sensor fiber 2, default FC/APC connector
SMA OUT1 Module Channel 1 outputs voltage signals; single-channel products utilize this interface.
SMA OUT2 Module Channel 2 Output Voltage Signal
Ordering Information
Product distance
channels GY-DAS 20：20km 1:1channel
40：40km 2:2channels 60：60km
Unboxing Inspection
Open the product packaging box and refer to the table below to confirm that the following accessories are included. If any items are missing, please contact us promptly.
Name Num Ultra-Narrow Pulse Integrated DAS/DVS Module
1 5V Power Supply Module
1 USB to TTL Module
1 SMA RF Cable
3 Product Test Report
1 User Manual
1 Certificate of Conformity 1
This DAS integrated module is specifically designed for short-range, high-spatial-resolution applications. It achieves a 20ns pulse width output with a measured spatial resolution of 3 meters and a monitoring distance of 10km. Operating at a frequency signal of 80MHz, it requires only a single data acquisition card with a 250MHz sampling rate for operation. For monitoring distances of 30km or greater, the spatial resolution is 10 meters.
Params
| Params | Value | Note |
|---|---|---|
| Monitoring distance | ＜40km | Supports monitoring at distances up to 10 km with a 20 ns pulse width, with a spatial resolution tested at 3 meters. |
| Pulse width value | 20ns-200ns | |
| Spatial resolution | 3m-10m | |
| Center frequency | 80MHz | |
| Channels | 1/2 | |
| Output Signal | Analog electrical signal | |
| Output Interface | SMA Female Connector | |
| Supply Voltage | 5V | |
| Communication Protocol | Modbus |
Mechanical Dimension Drawing
The following dimensions apply to the ultra-narrow pulse integrated DAS/DVS module and its acoustic-optical modulator driver. The overall module dimensions are 225 × 160 × 40 mm (excluding connectors and fiber). To ensure adequate thermal dissipation, install the module in an environment with sufficient ventilation. When not in use, cover the fiber flange and coaxial connectors with their respective protective caps to prevent contamination.
Interface Definition
The interface definition for the ultra-narrow pulse integrated DAS/DVS module is as follows:
| Interface Type | Screen printing | Instruction |
|---|---|---|
| Green Plug-in Terminal | 5V | DC power supply +5V |
| GND | DC Power Supply GND | |
| White plug-in terminal | COM | Serial port, TTL level, communicates with the computer for parameter adjustment |
| SMA | Modulation | Pulse-Modulated Signal Input |
| Fiber Optic Interface | Sensor1 | Connect to sensor fiber 1, default FC/APC connector. Single-channel products use this interface. |
| Fiber Optic Interface | Sensor2 | Connect to sensor fiber 2, default FC/APC connector |
| SMA | OUT1 | Module Channel 1 outputs voltage signals; single-channel products utilize this interface. |
| SMA | OUT2 | Module Channel 2 Output Voltage Signal |
Ordering Information
| Product | distance | channels |
|---|---|---|
| GY-DAS | 20：20km | 1:1channel |
| 40：40km | 2:2channels | |
| 60：60km |
Unboxing Inspection
Open the product packaging box and refer to the table below to confirm that the following accessories are included. If any items are missing, please contact us promptly.
| Name | Num |
|---|---|
| Ultra-Narrow Pulse Integrated DAS/DVS Module | 1 |
| 5V Power Supply Module | 1 |
| USB to TTL Module | 1 |
| SMA RF Cable | 3 |
| Product Test Report | 1 |
| User Manual | 1 |
| Certificate of Conformity | 1 |
Product Related Videos
FAQ
-
Q: What is the lead time for your fiber optic sensing related module products?
A: Basically, we have more than 90% of modules in stock, only a few models need 2 weeks lead time. -
Q: Do you support the sale of those countries, and is the shipping included?
A: Our service is available worldwide, regardless of country or region. Shipping is included. -
Q: Who are your typical customers?
A: More than 100 top universities and research institutes in China have chosen us and given us high evaluations, such as: Chinese Academy of Sciences, CEC, Tsinghua University, Peking University and other clients.
DAS Hardware All-in-One Comparison
| Product Type | Universal DAS hardware all-in-one | Enhanced DAS hardware all-in-one | High-performance DAS hardware all-in-one |
|---|---|---|---|
| Image |  |  |  |
| modulation scheme | single-pulse modulation | single-pulse modulation | sweep modulation |
| demodulation | Digital IQ demodulation, fpga+upper computer software demodulation | Digital IQ demodulation, fpga+upper computer software demodulation | Chirp demodulation |
| Inhibition of Coherent Decay | implemented | implemented | implemented |
| Full-area phase demodulation | implemented | implemented | implemented |
| spatial resolution | 6-10 meters | 3-10 meters | 2meters |
| signal-to-noise ratio： | general | general | high |
| sensitivity： | general | general | high |
| Market Prevalence： | More (basically this program) | Less | Less（Only 2-3 in China） |
| Acquisition Signal： | IF signal | IF signal | IF signal (complete signal acquisition) |
| Acquisition Channel： | dual channel | dual channel | single channel |
| Demodulation flexibility： | High (flexibility to modify different algorithms) | High (flexibility to modify different algorithms) | High (flexibility to modify different algorithms) |
| Detection distance： | 30km/50km | 30km/50km | 20km/40km |
| detection frequency： | 50kHz@1km | 50kHz@1km | 50kHz@1km |
| response band： | 0.02Hz-20kHz(Distance Related) | 0.02Hz-20kHz(Distance Related) | 1Hz-20kHz(Distance Related) |
| Fiber Type： | Single mode G652/G652D | Single mode G652/G652D | Single mode G652/G652D |
| optical connector： | FC/APC | FC/APC | FC/APC |
| communication interface： | PCIE/Ethernet | PCIE/Ethernet | PCIE/Ethernet |
| dimension： | 482*390*133mm | 482*500*178mm | 482*500*178mm |
| electricity supply： | AC220V | AC220V | AC220V |
| power wastage： | 220W | 480W | 480W |
