Abstract
It has recently been suggested that a laser cavity formed by a pair of gratings would show anomalously large longitudinal mode spacing which should favor single-longitudinal-mode emission. An experimental verification of that prediction with a TEA-CO2 laser is presented. The repeatedly negative results obtained under various conditions are given a tentative explanation, based on the well-known analysis of a closely related problem: the grating-pair pulse compression scheme.
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Couture, M., Piché, M. On longitudinal mode spacing of laser cavities with pairs of gratings. Appl. Phys. B 45, 93–95 (1988). https://doi.org/10.1007/BF00694322
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DOI: https://doi.org/10.1007/BF00694322