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Proceedings Paper

Highly effective input/output coupler in graded index waveguide
Author(s): Dmitry V. Svistunov
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Paper Abstract

Results of investigations of input/output couplers basing on a 2D refractive index gradient are presented. A new simple method of its forming has been suggested and realized. This method allows to achieve a considerable narrowing of the directional beam diagram of such elements to the values no more than 25' - 30'. The whole (100%) light output was experimentally observed for all studied samples. The waveguide launching efficiency of about 20% was obtained using a He-Ne laser incident beam without any additional optimizing transformations on its width and divergence.

Paper Details

Date Published: 10 August 1994
PDF: 6 pages
Proc. SPIE 2096, Lasers in Optical Systems and Devices, (10 August 1994); doi: 10.1117/12.183104
Show Author Affiliations
Dmitry V. Svistunov, S.I. Vavilov State Optical Institute (Russia)

Published in SPIE Proceedings Vol. 2096:
Lasers in Optical Systems and Devices
Artur A. Mak, Editor(s)

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