Loss characterization in rhodamine 6G.pdf

Loss characterization in rhodamine 6G doped polymer film waveguide by side illumination fluorescence
(a)
the fluorescence collected from the waveguide are used to
characterize the loss mechanisms in the waveguide. It has
been observed that at longer wavelengths, there is a lowering
of attenuation towards larger distances of propagation in the
waveguides. This suggests that appropriate design of the
waveguide will lead to a gain on the longer wavelength side.
Acknowledgments
The authors acknowledge the financial support from NUFFIC,
Netherlands, under the MHO assistance to International School
of Photonics. The first author is grateful to the Council of
Scientific and Industrial Research, New Delhi, for a research
fellowship. MR and VPN acknowledge the University Grants
Commission, New Delhi, for financial assistance through a
project fellowship and research award project respectively.
(b)
(c)
Figure 7. ln(I ) versus ln(z) plots.
structure is observed. This is a potential method for getting
tunable output from a waveguide laser. The data from
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