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.

Butterfly Laser Diode
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:
Butterfly Laser Diode
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
Applications