Atomic xenon laser produces high output power

Nov. 1, 1995
An RF-excited atomic xenon laser capable of providing a CW output of 5.5 W has been developed by a research group at Heriot-Watt University (Edinburgh, Scotland). The laser operates in the 2-4-µm region with efficiencies up to 0.8%. Atomic xenon lasers are of interest because their spectral region is useful but difficult to access with other lasers; potential applications include surgery and atmospheric remote sensing. DC-excited xenon lasers are, however, usually characterized as high-gain

Atomic xenon laser produces high output power

An RF-excited atomic xenon laser capable of providing a CW output of 5.5 W has been developed by a research group at Heriot-Watt University (Edinburgh, Scotland). The laser operates in the 2-4-µm region with efficiencies up to 0.8%. Atomic xenon lasers are of interest because their spectral region is useful but difficult to access with other lasers; potential applications include surgery and atmospheric remote sensing. DC-excited xenon lasers are, however, usually characterized as high-gain devices with low saturation, producing only milliwatt output. Although recent experiments with microwave and RF excitation have increased powers up to approximately1 W, the reason for the increase was unclear.

The xenon laser uses RF excitation at 49 MHz into a rectangular discharge slab made of metal and alumina. The length of the slab is 370 mm, the width ranges from 2 to 30 mm, and the thickness (interelectrode gap) ranges from 1 to 1.5 mm. Area scaling occurs as the width is changed, with a linear increase in power as the discharge slab area is increased. The output corresponds to 50 mW/cm2, and the highest power from the configuration is 5.5 W from the full width of 30 mm. The researchers believe that there is scope for making further improvements in the xenon laser.

Sponsored Recommendations

Optical Power Meters for Diverse Applications

April 30, 2024
Bench-top single channel to multichannel power meters, Santec has the power measurement platforms to meet your requirements.

Request a quote: Micro 3D Printed Part or microArch micro-precision 3D printers

April 11, 2024
See the results for yourself! We'll print a benchmark part so that you can assess our quality. Just send us your file and we'll get to work.

Request a Micro 3D Printed Benchmark Part: Send us your file.

April 11, 2024
See the results for yourself! We'll print a benchmark part so that you can assess our quality. Just send us your file and we'll get to work.

Request a free Micro 3D Printed sample part

April 11, 2024
The best way to understand the part quality we can achieve is by seeing it first-hand. Request a free 3D printed high-precision sample part.

Voice your opinion!

To join the conversation, and become an exclusive member of Laser Focus World, create an account today!