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Proceedings Paper

Application of long period gratings to integrated optical power splitters
Author(s): C. Wong; J. N. McMullin; C. J. Haugen
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Paper Abstract

Long period gratings (LPGs) in singlemode fibers have been used in recent years to make optical sensors. The grating-assisted coupling of light from the bound fibre mode to a cladding mode is sensitive to local influences such as temperature and stress. In this paper, we investigate the possibility of using LPGs to modify the behavior of planar multimode interference (MMI) devices by coupling power between selected bound modes of the planar device. In particular, it is shown that by applying an LPG to a MMI 1xN splitter, the splitting ratio can be changed. By making the grating dynamic, a tunable splitter can be realized. Examples are given for 1x2, 1x3 and 1x5 splitters. Possible methods for realizing such devices are discussed.

Paper Details

Date Published: 9 February 2007
PDF: 6 pages
Proc. SPIE 6478, Photonics Packaging, Integration, and Interconnects VII, 64780P (9 February 2007); doi: 10.1117/12.700457
Show Author Affiliations
C. Wong, Univ. of Alberta (Canada)
TRLabs (Canada)
J. N. McMullin, Univ. of Alberta (Canada)
TRLabs (Canada)
C. J. Haugen, Univ. of Alberta (Canada)
TRLabs (Canada)

Published in SPIE Proceedings Vol. 6478:
Photonics Packaging, Integration, and Interconnects VII
Allen M. Earman; Ray T. Chen, Editor(s)

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