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Optical Engineering

Development of an integrated narrowband tunable filter for LIDAR applications
Author(s): Dionisio Alves Pereira; José Luís Santos; Manuel B. Marques; Francisco M. Araújo; Luís A. Ferreira; Joao P. Carmo
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Paper Abstract

The overall procedure toward the implementation of a compact tunable athermal filter mounted on a piezoelectric actuator and based on a π-shift chirped fiber Bragg grating is presented. This package ensures an active tunablility over 2 nm with a cross thermal induced Bragg wavelength shift below 100 pm over a temperature range from −20°C to +80°C. The proposed filter makes use of the overall response of a π-shift chirped fiber Bragg grating and a bulk broadband microfilter that enables a sharp optical transmission spectrum response having a FWHM below 20 pm within a 2 nm region and 20 dB rejection band to be obtained.

Paper Details

Date Published: 1 December 2011
PDF: 9 pages
Opt. Eng. 50(12) 124403 doi: 10.1117/1.3656751
Published in: Optical Engineering Volume 50, Issue 12
Show Author Affiliations
Dionisio Alves Pereira, Univ. do Porto (Portugal)
José Luís Santos, Univ. do Porto (Portugal)
Manuel B. Marques, INESC Porto (Portugal)
Francisco M. Araújo, INESC Porto (Portugal)
Luís A. Ferreira, INESC Porto (Portugal)
Joao P. Carmo, European Space Research and Technology Ctr. (Portugal)


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