AC related photodetectors and fiber optic sensing products - page 4
AC related products
Dual Port APD Receiver Module For Raman DTS
[Avalanche Photodetector] 2026-04-11 08:53:04
The APD modules are based on low-noise avalanche photodiodes made of InGaAs with a built-in pre-amplifier and high voltage supply.A temperature compensation function allows the APD to be operated at constant gain across a wide operating temperature range.
FBG Fiber Optic Grating Demodulator4/8/16 channels selectable
[FBG] 2025-06-25 05:56:54
GY-FBG series fiber grating demodulator module can be matched with various fiber grating sensors, through the detection of grating wavelength changes to achieve the purpose of monitoring temperature, strain, pressure and other physical quantities. The wavelength range is from 1525nm to 1565nm, and the wavelength, light intensity and spectral data of the grating to be measured can be reported to the host computer through the serial port RS232.
1450/1550/1660nm Raman WDM coupler for DTS
[WDM] 2025-12-12 02:05:23
This is a 1450/1550/1660nm Raman WDM coupler module for DTS Raman temperature measurement system, with one 1550nm input port and three output ports (1450nm and 1660nm to APD photodetector, COM port to sensing optical cable.
This module makes DTS system integration more convenient.
Nanosecond Pulsed Laser for DTS Temperature Sensing 1550nm Power 30W
[Laser Module] 2025-07-19 04:51:25
The laser is customized for distributed fiber optic temperature measurement applications and features high stability, adjustable pulse width and high peak power output at 1550 nm with a minimum pulse width of 5 ns. It supports both ACC and APC mode operation.
PD610 Amplified Photodetector Free-Space PIN Photodiode
[Amplified Photodetector] 2026-03-19 01:50:55
The PD610 is a photodetector with amplification circuitry for free-space optical systems. The unit includes a photodiode, transimpedance amplifier, and RF connector packaged in an aluminum housing.
AC related articles
1064nm detector photodiode and photodetector module manufacturer
We offer 1064nm detector photodiodes, bare, packaged on request; we also offer 1064nm photodetector modules for research experiments or LIDAR applications.
Data acquisition system for fiber optic vibration monitoring
From the schematic diagram we can see that the distributed fiber optic vibration data monitoring system, using a balanced photodetector for coherent detection, and then need to IQ demodulation of the collected data, demodulation followed by phase unwinding to obtain the amplitude root phase data information.
Raman amplifiers in distributed fiber optic acoustic sensing systems Video
Raman amplifier solves the problem of low signal-to-noise ratio in distributed fiber optic acoustic sensing DAS systems
Testing of a distributed fiber optic acoustic sensing system at a 50KM location
The PZT was used to test the Distributed Fiber Optic Acoustic Sensing System DAS at a location of 50KM, using a repetition frequency of 2000Hz, capable of testing signals at 980Hz.
Distributed fiber optic acoustic sensing system tests different vibrations with PZT and restores the signals.
Video of a test of the effect of a DAS-reduced signal using a PZT to generate vibrations of different frequencies for excitation of an optical fiber.
Distributed Acoustic Sensing (DAS) collects sample data for AI model training
Distributed Acoustic Sensing (DAS) collects sample data for AI model training.
GY-DAQ-2480-E Fiber Optic Acoustic Sensing (DAS) Data Acquisition Card User Guide
1. Unboxing and inspection
2. Connecting Ethernet cables/fiber ports
3. Configuring IP addresses
4. Testing
Data Acquisition Card Product Selection Chart
Data Acquisition Card Product Selection Chart
DAS Acquisition Card | How Is It Different from Traditional Acquisition Cards?
DAS Acquisition Card | How Is It Different from Traditional Acquisition Cards?
Should I choose a 250 MHz or 1 GHz data acquisition card for a DAS system?
Should I choose a 250 MHz or 1 GHz data acquisition card for a DAS system?
Installation Guide for PCIe DAS Acquisition Cards
Installation Guide for PCIe DAS Data Acquisition Cards, Compatible Models: GY-DAQ-2480, GY-DAQ-2510D, GY-DAQA-2510.
Data acquisition card for distributed fiber optic vibration monitoring system
Introduction of data acquisition card for distributed fiber optic vibration monitoring system, 100M sampling rate, PCIe interface with demodulation algorithm.
FAQ for the GY-DAQA-2510 High-Speed DAS Acquisition Card
FAQ for the GY-DAQA-2510 High-Speed DAS Acquisition Card
DAS Acquisition Card (GY-DAQ-2480-E) Product Overview
DAS Acquisition Card (GY-DAQ-2480-E) Product Overview
DAS Data Acquisition Card Driver Installation Guide
This tutorial provides detailed instructions for installing the GY-DAQ-2480 driver.
GY-DAQ-2480 Interface Documentation (1.41)
GY-DAQ-2480 Data Acquisition Card Interface Documentation Version 1.41
Ethernet Port Data Acquisition Card Installation Guide
Installation Guide for Ethernet Port Data Acquisition Cards, compatible with models GY-DAQ-2480-E, DVS-ETH-100-1, and DTS-ETH-250M-2A.
Sample code for the DAS acquisition card (GY-DAQ-2480-E)
Sample code for the DAS acquisition card (GY-DAQ-2480-E)
Data Acquisition Card Product Specifications
Data Acquisition Card Product Specifications
Wiring Diagram for the Acquisition Card
Wiring Diagram for the Acquisition Card
Component Configuration of a Distributed Fiber Optic Acoustic Sensing DAS
Distributed fiber optic acoustic sensing system DAS configuration of 2 ways, one is 80M AOM + 250M DAQ, the other is 200M AOM + 1G DAQ
Common Anomalous Signals in Distributed Acoustic Sensing (DAS) Systems and Their Handling
Common Anomalous Signals in Distributed Acoustic Sensing (DAS) Systems and Their Handling
Free-Space Si PIN APD detector, TO package for spatial light detection in visible light
Free-space silicon photodetector with response wavelength 400-1100 nm, including PIN amplification, APD and bias detector
InGaAs Free Space Photodetector 800-1700nm
InGaAs Free Space Photodetector 800-1700nm Quick selection table to quickly find the right detector for your application.