B. Ozygus et J. Erhard, THERMAL LENS DETERMINATION OF END-PUMPED SOLID-STATE LASERS WITH TRANSVERSE BEAT FREQUENCIES, Applied physics letters, 67(10), 1995, pp. 1361-1362
By measuring the beat frequency of adjacent transverse modes it is pos
sible to determine the thermal lensing of end-pumped laser crystals. B
ecause frequencies are used the method is very precise. Even for very
weak thermal lensing the technique can be applied. (C) 1995 American I
nstitute of Physics.