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Proceedings Paper

Optical loss coefficient in plastic waveguides
Author(s): K. Geetha; Pramod Gopinath; K. P. Unnikrishnan; S. Thomas Lee; C. P. G. Vallabhan; V. P. N. Nampoori; Periasamy Radhakrishnan
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Paper Abstract

We report the position dependent tuning of fluorescence emission from Rhodamine 6G doped plastic waveguide using side illumination technique . The transmitted fluorescence as a function of the distance from the point of illumination is measured by translating the waveguide horizontally across a monochromatic light source. This technique has proved to be a useful method for characterizing the light propagation properties of dye-doped waveguides. An important finding of the present studies is the nonlinear behavior of the loss coefficient as a function of propagation distance through the waveguide. It is also found that this type of nonlinear nature depends on the dye concentration and thickness of the waveguide.

Paper Details

Date Published: 28 August 2002
PDF: 9 pages
Proc. SPIE 4904, Optical Fiber and Planar Waveguide Technology II, (28 August 2002); doi: 10.1117/12.481251
Show Author Affiliations
K. Geetha, Cochin Univ. of Science and Technology (India)
Pramod Gopinath, Cochin Univ. of Science and Technology (India)
K. P. Unnikrishnan, Cochin Univ. of Science and Technology (India)
S. Thomas Lee, Cochin Univ. of Science and Technology (India)
C. P. G. Vallabhan, Cochin Univ. of Science and Technology (India)
V. P. N. Nampoori, Cochin Univ. of Science and Technology (India)
Periasamy Radhakrishnan, Cochin Univ. of Science and Technology (India)


Published in SPIE Proceedings Vol. 4904:
Optical Fiber and Planar Waveguide Technology II
Shuisheng Jian; Steven Shen; Katsunari Okamoto, Editor(s)

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