Abstract
Based on average intensity distributions at two axial positions, an experimental approach to determine the mode coherence coefficients was developed. Using this approach, investigations were carried out for a CO2 laser with a stripe resonator. The power partitions of, and cross-correlations between, modes at different aperture widths and the dependence of the beam quality on the aperture width were studied. The measuring principle, an iterative fit method, and some experimental results are presented and discussed.
Similar content being viewed by others
References
N. B. ABRAHAM and W. J. FIRTH,J. Opt. Soc. Am. B7 (1990) 951.
M. S. BOWERS and S. E. MOODY,Appl. Opt. 29 (1990) 3905.
F. HOLLINGER, CHR. JUNG and H. WEBER,Opt. Commun. 75 (1990) 84.
O. MÄRTENet al., Proceedings of Laser '89 Munich, 1989.
K.-M. DU, G. HERZIGER, P. LOOSEN and F. RÜHL,Opt. Quantum Electron. 24 (1992) S1081.
K.-M. DU, PhD thesis, RWTH Aachen (1992).
D. C. W. MORLEY, et al.,J. Appl. Phys. 18 (1967) 1419.
G. HERZIGER, E. BEYER, R. KRAMER, P. LOOSEN and F. RÜHL, Diagnostic System for Measurement of the Focus Diameter of High-power CO2-lasers,GCL Proceedings, Jerusalem (Springer-Verlag, 1986) p. 330.
E. BEYER, G. HERZIGER, R. KRAMER and P. LOOSEN, A Diagnostic System for measurement of the Focused Beam Diameter of High Power CO2-laser,Proceedings CLEO (1987).
A. E. SIEGMAN,Proc. SPIE 1224 (1990) 2.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Du, K.M., Herziger, G., Loosen, P. et al. Measurement of the mode coherence coefficients. Opt Quant Electron 24, S1119–S1127 (1992). https://doi.org/10.1007/BF01588610
Received:
Revised:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF01588610