The dual-channel APD photoreceiver module, using InGaAs APD photodiodes, is customized for the DTS Raman temperature measurement system and is used to receive Anti-Stokes and Stokes Raman optical signals.
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.
APD-DTS is a dual avalanche photodetector for distributed fiber optic temperature measurement. It is internally based on low noise amplifiers, boost circuits, and temperature compensation circuits, featuring high gain and fast response. The module is powered by a single power supply for easy integration, and the outputs use SMA connectors to reduce size and maximize frequency response, with a maximum bandwidth of 200MHz.
Items | DTS-APD-150M |
---|---|
Materials | InGaAs |
Wavelength | 1000-1700nm |
Input connector | Multimode fiber with FC/APC connectors |
Responsivity @M=1 | 0.9A/W @1550nm |
Bandwidth(b) | DC-150MHz |
Rise time(b) | 2.5ns |
Gain(a) | 3.2x107V/W |
Saturated Optical power | 108nw |
NEP | 0.28pW/√Hz |
Maximum output amplitude(a) | 4V |
Operating voltage | 9-12V |
Operating Current | <500mA |
Output Impedance | 50Ω |
Output coupling mode | DC |
Output connector | SMA female |
Operating temperature | -10~65℃ |
Storage temperature | -40~85℃ |
Remarks:
a For high resistance loads
b For 50Ω loads
5. Mechanical dimensions
Note: Response curves are typical values for reference only.
Item | Name of material | num | unit | note |
---|---|---|---|---|
1 | photodetector | 1 | pcs | |
2 | SMA to BNC RF Cable | 2 | pcs | |
3 | power adapter | 1 | pcs | 9v,With an adapter cable |
Product Name | Model | Description |
---|---|---|
Pulsed Laser 1550nm 30W Peak Power For DTS | DTS-LASER-1550-30 | 1550nm, pulsed laser, maximum power peak: 30W |
Dual Port Raman DTS InGaAS APD Receiver Module | DTS-APD | Multiple bandwidth options, dual ports, built-in temperature compensation |
100/200M DTS dedicated data acquisition card | GY-DTS-X | The GY-DTS-X is a special DAQ card for DTS system,With 100/200/250MSps sampling rate. It adopts 100Mbps network port for data transmission |