Efficient scalable optically pumped HBr laser

C. R. Jones; R. N. Campbell; C. Kletecka; Wolfgang G. Rudolph

doi:10.1117/12.547335

20 September 2004 Efficient scalable optically pumped HBr laser

C. R. Jones, R. N. Campbell, C. Kletecka, Wolfgang G. Rudolph

Proceedings Volume 5448, High-Power Laser Ablation V; (2004) https://doi.org/10.1117/12.547335
Event: High-Power Laser Ablation, 2004, Taos, New Mexico, United States

Abstract

A concept combining the advantages of solid-state and gas-laser technologies is being developed to realize a scalable, efficient 4-micron laser. A Nd:YAG laser is tuned to 1.3391 microns by temperature-tuning and cavity selection. The addition of diode seeding permits excitation of a specific v = 3 rotational state of HBr. Lasing can potentially occur in three subsequent steps to the ground state, emitting numerous lines in the 4-micron region, which enhances efficiency and spectral coverage. Using up to 25-mJ pump energy, two elements of the possible three-level cascade have been observed. We have observed emission selectivity due to intracavity carbon dioxide and inferred the presence and contributory influence of pure-rotational stimulated emission, which may have importance to the overall behavior of other similar molecular pulsed lasers (and even continuous-wave HX lasers). We present theoretical and experimental results demonstrating the operational principle and utility of this laser system.

Citation Download Citation

C. R. Jones, R. N. Campbell, C. Kletecka, and Wolfgang G. Rudolph "Efficient scalable optically pumped HBr laser", Proc. SPIE 5448, High-Power Laser Ablation V, (20 September 2004); https://doi.org/10.1117/12.547335

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