Spectral-linewidth measurement with intracavity compensation for selective losses

We propose an intracavity method of determining the spectral linewidth based on the use of a special mode of operation of a laser with a magnetized atomic absorbing medium in an anisotropic cavity when the output radiation power of the laser does not depend on the optical density of the absorbing medium. Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 67, No. 3, pp. 283–285, May–June, 2000.