Measurement of optical gain at 670 nm in an oxazine-doped polyimide planar waveguide
- 9 December 1996
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 69 (24) , 3653-3655
- https://doi.org/10.1063/1.117013
Abstract
Optical gain measurements have been performed on several of the lower order modes of a multimode polyimide planar waveguide doped with the laser dye cresyl violet 670. A transverse pumping geometry was employed, resulting in larger gain for higher order modes. In a 21-mm-long device, an amplification of 14.4 dB was achieved for the sixth order guided mode at a wavelength of 670 nm. The photostability performance of the waveguide is comparable to the results reported for rhodamine-doped organically modified silica gels.Keywords
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