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Efficient room-temperature CO laser with high specific output.

S Sato, K Shimizu, K Shimamoto

|October 22, 2009

Summary

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This study demonstrates efficient room-temperature operation of a fast-axial-flow radio-frequency (RF) discharge-excited carbon monoxide (CO) laser, achieving a 268 W output with high electrical conversion efficiency.

Area of Science:

Laser Physics
Gas Discharge Physics
Quantum Electronics

Background:

Carbon monoxide (CO) lasers are valuable tools in various scientific and industrial applications.
Developing efficient and compact laser systems remains a key research objective.

Purpose of the Study:

To describe the efficient room-temperature operation of a fast-axial-flow RF-discharge-excited CO laser.
To investigate the performance characteristics and optimize gas mixture compositions.

Main Methods:

Utilized a fast-axial-flow radio-frequency (RF) discharge excitation method.
Employed a CO/N(2)/He/Xe/O(2) gas mixture in a 19-mm-diameter, 300-mm-long discharge tube.
Measured steady-state laser output power and electrical conversion efficiency.

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Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry

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Main Results:

Achieved a steady-state laser output of 268 W.
Obtained high electrical conversion efficiency of 13.5%.
Reached a specific laser output of 3.15 W/cm(3), comparable to industrial CO(2) lasers.

Conclusions:

Demonstrated efficient room-temperature operation of a fast-axial-flow RF-discharge-excited CO laser.
Highlighted the significant role of Xenon (Xe) in enhancing laser performance.
Indicated the potential of this CO laser technology for high-power applications.