1653.7nm Butterfly Laser Diode
Techwin 1653.7nm butterfly laser diode is specifically designed for methane (CH₄) gas detection, featuring high power, stable wavelength, narrow spectral linewidth, and a high side-mode suppression ratio (SMSR). The laser is housed in a standard 14-PIN butterfly package with standard single-mode fiber and an FC/APC connector output, ensuring good compatibility. This series of products is widely used in optical sensing and gas detection. We can also customize different wavelength gas detection sensors according to customer requirements.
Key Features:
- 1653.7nm Central Wavelength
- Narrow Linewidth
- Standard 14-PIN Butterfly Package
- High Power
- Standard Single Mode Fiber Output
- FC/APC Connector
Applications
- Optical Gas Detection
- Optical Sensing
Parameters
| Parameters | Min | Typ | Max | Unit |
| Output Power @ 130mA | 15 | mW | ||
| Center Wavelength | 1653.7 | nm | ||
| Spectral Linewidth | 2 | MHz | ||
| Side mode Suppression Ratio | 35 | dB | ||
| Optical Isolation | 30 | dB | ||
| Threshold Current | 35 | mA | ||
| Operating Current | 130 | mA | ||
| Operating Voltage | 2 | 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 | ||
| Operating Temperature (Case Temperature) | -20 | 70 | ℃ | |
| Storage Temperature | -40 | 85 | ℃ |
Mechanical Dimensions and PIN Definition:
| PIN | Description | PIN | Description |
| 1 | Rt | 8 | NC |
| 2 | Rt | 9 | LD(+) |
| 3 | NC | 10 | NC |
| 4 | PD Anode (-) | 11 | LD(+) |
| 5 | PD Cathode (+) | 12 | LD(-) |
| 6 | TEC(+) | 13 | Case Ground |
| 7 | TEC(-) | 14 | NC |
Different wavelength is available according to customer requirements.
| Central wavelength | Laser type | Detected Gases |
| 1273nm | DFB | Hydrogen Fluoride |
| 1392nm | DFB | Water Vapor |
| 1512nm | DFB | Ammonia |
| 1532nm | DFB | Acetylene |
| 1567nm | DFB | Carbon Monoxide |
| 1578nm | DFB | Hydrogen Sulfide |
| 1620nm | DFB | Ethylene |
| 1653nm | DFB | Methane |
| 1676nm | DFB | Ethane |
| 1742nm | DFB | Hydrogen Chloride |
Ordering Information:
- Customized according to customer needs
