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Journal Article InP-Based Polarization-Insensitive Planar Waveguide Concave Grating Demultiplexer with Flattened Spectral Response
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Authors
Oh Kee Kwon, Chul Wook Lee, Dong Hun Lee, Eun Deok Sim, Jong Hoi Kim, Yong Soon Baek
Issue Date
2009-04
Citation
ETRI Journal, v.31, no.2, pp.228-230
ISSN
1225-6463
Publisher
한국전자통신연구원 (ETRI)
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.4218/etrij.09.0208.0223
Abstract
InP-based planar waveguide 48-channel concave grating demultiplexers with a channel spacing of 0.8 nm (100 GHz) are described and demonstrated. Polarization insensitivity and flattened spectral response are successfully achieved by the introduction of a polarization compensator and a two-focus grating, respectively. The fabricated device shows a polarization-dependent wavelength shift of less than 20 pm and a -3 dB spectral width of about 0.55 nm (68.75 GHz) over all channels.
KSP Keywords
5 GHz, 5 nm, Channel spacing, Concave grating(CG), InP-based, Planar waveguide, Polarization insensitivity, Polarization-dependent wavelength shift, Spectral Response, polarization-insensitive, spectral width