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Journal Article
Birefringence as a function of upper-cladding layers in polymeric arrayed waveguide gratings
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- Authors
- Jong-Moo Lee, Suntak Park, Min-su Kim, Joon Tae Ahn, Myung-Hyun Lee
- Issue Date
- 2004-03
- Citation
- Optics Communications, v.232, no.1-6, pp.139-144
- ISSN
- 0030-4018
- Publisher
- Elsevier
- Language
- English
- Type
- Journal Article
- Abstract
- We investigated on the variation of polarization-dependent wavelength shifts in birefringent-polymeric arrayed waveguide gratings (AWG) along the each step of forming a core layer and a multi-layered upper cladding in fabrication processes. We found that the polarization-dependent wavelength shift is a function of the number of sublayers with a positive offset value depending on the thickness of the first sublayer and a negative slope depending on the thickness of the additional sublayers, resulting in a polarization-insensitive AWG with proper values of the thickness and the number. © 2003 Elsevier B.V. All rights reserved.
- KSP Keywords
- Cladding layer, Polarization-dependent wavelength shift, arrayed waveguide grating(AWG), fabrication process, polarization-insensitive