Fluctuations in near 360 degrees curved and straight channel dye cells for high repetition rate copper vapour laser pumped dye laser

摘要

A study of wavelength and bandwidth fluctuations of a rhodamine 6G dye laser, transversely pumped by high repetition rate copper vapour laser, using a near 360 degrees curved and a straight duct dye cell, is presented. The axial modes, which are indistinguishable in the straight duct cell, are clearly distinguishable in the curved duct cell dye laser. The curved duct dye cell has smaller fluctuations in wavelength and bandwidth as compared with the straight dye cell.