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Proceedings Paper

Apodized filters on InP-material ridge waveguides using sampled Bragg gratings
Author(s): Sophie Garidel; Jean-Pierre Vilcot; Didier Decoster
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Paper Abstract

We present here the design, fabrication and first measurements of integrated Bragg grating apodized filters, operating at a free-space wavelength of about 1550 nm, based on InP material line ridge waveguides. Their apodized transmission spectra are obtained by the mean of sampled grating structures. The fabrication process by means of electron beam lithography will be described. It has been used to realize the sampled gratings which are spatially localized on the wafer. The transmission spectrum of the filters is measured. The transmission dip is almost -30 dB over almost 0.25 nm which is in a good agreement with theoretical calculations. The suppression is better than 20dB outside a bandwidth of almost 1nm, whereas a uniform grating with the same dimensions only presents almost 10dB suppression outside the same bandwidth.

Paper Details

Date Published: 4 April 2005
PDF: 10 pages
Proc. SPIE 5723, Optical Components and Materials II, (4 April 2005); doi: 10.1117/12.590481
Show Author Affiliations
Sophie Garidel, IEMN, CNRS and Univ. des Sciences et Technologies de Lille (France)
Jean-Pierre Vilcot, IEMN, CNRS and Univ. des Sciences et Technologies de Lille (France)
Didier Decoster, IEMN, CNRS and Univ. des Sciences et Technologies de Lille (France)


Published in SPIE Proceedings Vol. 5723:
Optical Components and Materials II
Shibin Jiang; Michel J.F. Digonnet, Editor(s)

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