GK Semi

Laser Products

1940-002W 1940 nm Laser Series

Precision control · The water-absorption prime band | The highest-output single emitter in the 1940 nm series.

1940-002W product photograph
Wavelength1940 nm
Output2 W
Operating modeCW
Spectral width13 nm
Pulse / dutyContinuous wave

01 / Product introduction

Product introduction

This 1940 nm laser uses advanced semiconductor epitaxy with a conduction-cooled structure, delivering high efficiency, long service life and high reliability. The 1940 nm wavelength sits on the strong absorption peak of the water molecule, giving it an irreplaceable role in precision medical aesthetics and the processing of selected polymer materials. The 2 W variant is the highest-output single emitter in the series, using a 400 μm emitting window to spread thermal load.

02 / Core application scenarios

Core application scenarios

01
Laser medicine and aestheticsNon-invasive and minimally invasive dermatological treatment, laser skin-brightening equipment and fine surgical procedures.
02
Industrial and specialty equipmentProcessing of high-absorption plastics and polymer materials, laser de-icing and specialty gas detection.
03
Laser pumpingPump sources for 2 μm-band solid-state and fiber lasers.

03 / Core advantages

Core advantages

01
Prime-band strong absorptionThe wavelength matches the water-molecule absorption peak precisely, giving efficient processing and treatment with a very small thermal-damage zone.
02
Highest single-emitter outputA 400 μm emitting window over a 2000 μm cavity delivers 2 W output at 8 A drive, the highest in the single-emitter series.
03
High reliability, long lifeA high-thermal-conductivity aluminium-nitride ceramic heat sink with an optimised package keeps continuous operation stable and durable.
04
In-house IDM productionA fully self-developed chip platform gives controlled quality and supports multiple power levels and customised modules.

04 / Core technical specifications

Core technical specifications

Wavelength
1940 nm
Output
2 W
Operating mode
CW
Spectral width
13 nm
Pulse / duty
Continuous wave
Drive
8 A / 1.6 V
Thermal control
15–35 °C
Package
AlN ceramic package
Output interface
Free-space / package dependent

04 / Project integration

Integration essentials

Drive
8 A / 1.6 V
Thermal control
15–35 °C
Package
AlN ceramic package
Output interface
Free-space / package dependent