Narrow Linewidth Laser Module 1550nm 3kHz 20mW | DAS/Fiber Optic Sensing
High-performance 1550nm ultra-narrow linewidth laser module (≤3kHz, 20mW) for distributed fiber optic acoustic sensing (DAS), LiDAR, coherent detection & scientific research. Low noise, stable wavelength, FC/APC connector, DC5V/3A power supply.
Model： unl-1550nm-3k-20mw
Dongz
Email: Sales@wxgphotonics.com
The 1550nm center wavelength ultra-narrow linewidth single-frequency laser module features an ultra-narrow linewidth, high output power, wavelength stability, low noise, low power consumption, and ease of use, making it a high-performance semiconductor laser module product. This module can be used in lidar, coherent detection, fiber optic sensing, medical photonics, scientific research equipment, 3D mapping, and other fields.
1. Technical Advantages
- Silicon photonics integrated chip technology
- High-performance semiconductor laser technology
- High-precision semiconductor packaging processes
2. Features
- Ultra-narrow linewidth (≤3 kHz)
- Single-frequency center wavelength at 1550 nm, supporting customization for any wavelength within the C-band
- Stable output power and wavelength
- High output optical power
- Low RIN noise
- Low power consumption
- Low-noise, high-precision circuit design
3. Product Applications
- Fiber Optic Sensing
- Lidar
- Coherent Detection
- Scientific Research Equipment
4. Product Specifications
Optical and Electrical Parameters (TLD=30°C)
| Parameters | Symbol | Conditions | Min. | Type. | Max. | Unit |
|---|---|---|---|---|---|---|
| Threshold current | Ith | CW | 35 | mA | ||
| Center wavelength | λC | 1535 | 1550 | 1565 | nm | |
| Output fiber optic power | Pf | CW | 10 | mW | ||
| Lorentzian linewidth* | FWHM | CW | 3 | kHz | ||
| Relative Intensity Noise | RIN | ≥1kHz | -145 | dB/Hz | ||
| Side-mold Suppression Ratio | SMSR | CW | 60 | dB | ||
| Polarization extinction ratio | PER | CW | 20 | dB | ||
| Optical Isolation | ISO | 50 | dB | |||
| TEC Set temperature | TTEC | CW | 15 | 45 | ℃ | |
| Operating Temperature | To | -20 | 60 | ℃ | ||
| Operating Humidity | % | 5 | 85 | % |
*Lorentzian Linewidth Measurement Using Delayed Heterodyning Method
Typical Lorentzian line width (2 kHz)
5. Electrical and Physical Parameters
Dimensions and Electrical Specifications
| Item | Parameters | Unit |
|---|---|---|
| External Dimensions | L×W×H=81.68*47.00*14.00 | mm |
| Built-in pigtail type | SMF/PMF | |
| Connector | FC/APC | |
| Power Supply | DC 5V/3A | |
| Safety Control | Interlock |
6. Order Info
unl-1550nm-3k-20mw-1： Wavelength: 1550 nm, linewidth less than 3 kHz, output power 20 mW, single-mode fiber.
unl-1550nm-3k-20mw-0：Wavelength: 1550 nm, linewidth < 3 kHz, output power: 20 mW, polarization-maintaining fiber.
Excerpt from Customised Client Testing Declaration:
