1550nm Narrow Linewidth Laser Diode
Techwin’s 1550nm Narrow Linewidth Laser Diode is designed for ultra-narrow linewidth applications, utilizing Volume Bragg Grating (VBG) stabilization. This ensures high power, low noise, and a narrow linewidth, with a minimum linewidth achievable below 3kHz.
The laser is housed in a standard 14-PIN butterfly package and is available with single-mode or polarization-maintaining (PM) fiber, featuring an FC/APC connector output for good compatibility. This series of products is widely used in fiber optic sensing, laser radar, and other related fields.
Key Features:
- Ultra-Narrow Linewidth
- Low Noise
- Single Mode/Polarization Maintaining Fiber Output
- Standard 14-PIN Butterfly Package
Applications
- Fiber Optic Sensing
- Laser Radar (LiDAR)
- Optical Communication
- Microwave Photonics
Parameters
| Parameters | Min | Typ | Max | Unit |
| Output Power. | 10 | mW | ||
| Center Wavelength | 1550 | nm | ||
| Lorentz Linewidth | 3/5/30 | kHz | ||
| Side mode Suppression Ratio | 50 | dB | ||
| Polarization extinction ratio | 20 | dB | ||
| Relative intensity noise | -140 | dB/Hz | ||
| Optical isolation | 40 | dB | ||
| Threshold current | 40 | mA | ||
| Operating Current | 300 | mA | ||
| Operating Voltage | 1.8 | V | ||
| TEC Temperature Setting | 15 | 35 | C | |
| TEC Current | 2.5 | A | ||
| TEC Voltage | 4.8 | V | ||
| Thermistor Resistance @ 25℃ | 10 | kΩ | ||
| PD Operating Voltage | -5 | V | ||
| PD Current | 2.0 | mA | ||
| PD dark current | 1 | nA | ||
| Operating Temperature | 0 | 50 | ℃ | |
| Storage Temperature | -40 | 85 | ℃ |
Mechanical Dimensions and PIN Definition:
| PIN | Description | PIN | Description |
| 1 | Rt | 8 | NA |
| 2 | Rt | 9 | NA |
| 3 | LD(-) | 10 | N.A. |
| 4 | PD(+) | 11 | LD(+) |
| 5 | PD(-) | 12 | N.A. |
| 6 | TEC(+) | 13 | N.A. |
| 7 | TEC(-) | 14 | N.A. |
Ordering Information:
- Customized according to customer needs
