Cain studies of Rhodamine 6G dye doped polymer laser

Solid state dye doped polymer is an attractive alternative to the conventio nal liquid dye solution. In this paper, the laser characteristics of Rhodam ine 6G (Rh6G) doped polymethyl methacrylate (PMMA) rods, modified with ethy l alcohol (EtOH), are examined by nitrogen laser, and second harmonic Nd : YAG laser excitations in a transverse pumping configuration and the variati on of small signal gain of the dye in solid medium for different pump power s are studied. The photobleaching of dye doped polymer rod is also studied. (C) 1999 Elsevier Science S.A. All rights reserved.