Overview
The GY-DTS-MC integrated optical module is a core optical unit for distributed fiber optic sensing (DTS) systems. It integrates a pulsed laser source, an avalanche photodetector, and a Raman WDM (wavelength division multiplexing) device into a compact metal housing; It can be supplied separately without a full-system chassis, outputting synchronized trigger pulses and two channels of analog Raman scattering signals. Customers can use this module in conjunction with their own high-speed data acquisition cards to build a complete distributed optical fiber temperature measurement system; It supports three types of pigtail specifications: 62.5/125, 50/125 multimode, and 9/125 single-mode. The pulse frequency is adjustable from 5 to 20 kHz, with a maximum monitoring distance of 10 km per channel. It is suitable for manufacturers developing DTS equipment for the power, oil and gas, and tunnel fire protection industries, as well as for temperature measurement research platforms at universities.
| Parameter | Unit | Min | Typ | Max | Remarks |
|---|---|---|---|---|---|
| Measuring Distance | km | 10 | |||
| Center Wavelength | nm | 1550.12 | |||
| Spectral Width (30 dB) | nm | 0.3 | 1 | ||
| Peak Output Optical Power | W | 30 | |||
| Repetition Rate | kHz | 5 | 20 | ||
| Pulse Width | ns | 5 | 120 | ||
| Triggering Method | External Triggering of the Laser | A custom-designed acquisition card requires a trigger pulse signal | |||
| Operating Temperature | ℃ | -10 | - | 50 | |
| Storage Temperature | ℃ | -40 | - | 70 | |
| Power Consumption | W | - | 14 | 20 | |
| Operating Voltage | V | 9 | 12 | 13 | |
| Pigtail Type | / | 62.5/125 multimode fiber, FC/APC connector | |||
| Pigtail Length | m | ≥1 | |||

| No. | Name | Interface Type | Function Description |
|---|---|---|---|
| 1 | 12V | WJ15EDGRM-3.81-2P | Power Input Port: 12 VDC, 2 A |
| 2 | GND | WJ15EDGRM-3.81-2P | Power Input Port: GND |
| 3 | CHNA | SMA Female Connector | 1450 nm Electrical Signal Output Interface |
| 4 | CHNB | SMA Female Connector | 1660 nm Electrical Signal Output Interface |
| 5 | TRIGGER | SMA Female Connector | Modulation Signal Output Interface: 5 V Square Wave |
| 6 | COM | XH2.54-4P | Pulsed Laser Debug Interface |
| 7 | SENSOR | FC/APC | 62.5/125 Multimode Fiber |
For the COM port communication protocol and communication content, please refer to the nanosecond pulsed laser module specifications.
Shipping List
| Name | Quantity |
|---|---|
| GY-DTS-MC Module | 1 |
| Power Adapter 12V/2A | 1 |
| Power Connector | 1 |
| USB to TTL Serial Cable | 1 |
| Specifications | 1 |
| Test Report | 1 |
| Certificate of Conformity | 1 |
| Model | Description |
|---|---|
| GY-DTS-MC | 62.5/125 multimode temperature-sensing optical cable |
| GY-DTS-MC-50 | 50/125 multimode temperature-sensing optical fiber |
| GY-DTS-MC-09 | 9/125 single-mode optical fiber |