Very Long Lasers

Gary J. Linford, E. R. Peressini, W. R. Sooy, M. L. Spaeth

Applied Optics · 1974 · 257 citations · 8 references

Concepts

TL;DR

Very long continuous‑wave xenon lasers exhibit unique oscillation characteristics and hold promise for atmospheric pollution detection. Experiments used high‑gain 3.508‑μm xenon amplifiers with cavity lengths up to 30 km, performing Doppler, Q‑switching, and modulation studies. Spectral analysis revealed complex oscillation spectra that combine homogeneous and inhomogeneous mode structures.

Abstract

The properties and oscillation characteristics of very long cw xenon lasers are discussed and pertinent long laser experiments described. High-gain 3.508-μm xenon laser amplifiers were used in these experiments. Laser cavity lengths of up to 30 km were studied. Spectrum analyses revealed complex oscillation spectra exhibiting the characteristics of both homogeneous and inhomogeneous laser mode structures. Long laser Doppler experiments, Q-switching studies, and modulation experiments were performed. Applications to atmospheric pollution detection are discussed.

References

8