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Proceedings Paper

Evaluation of dispersive Bragg gratings (BG) structures for the processing of RF signals with large time delays and bandwidths
Author(s): M. Kaba; F. C. Zhou; A. Lim; D. Decoster; J.- P. Huignard; S. Tonda; D. Dolfi; J. Chazelas
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Paper Abstract

The applications of microwave optoelectronics are extremely large since they extend from the Radio-over-Fibre to the Homeland security and defence systems. Then, the improved maturity of the optoelectronic components operating up to 40GHz permit to consider new optical processing functions (filtering, beamforming, ...) which can operate over very wideband microwave analogue signals. Specific performances are required which imply optical delay lines able to exhibit large Time-Bandwidth product values. It is proposed to evaluate slow light approach through highly dispersive structures based on either uniform or chirped Bragg Gratings. Therefore, we highlight the impact of the major parameters of such structures: index modulation depth, grating length, grating period, chirp coefficient and demonstrate the high potentiality of Bragg Grating for Large RF signals bandwidth processing under slow-light propagation.

Paper Details

Date Published: 21 November 2007
PDF: 9 pages
Proc. SPIE 6781, Passive Components and Fiber-based Devices IV, 67812Q (21 November 2007); doi: 10.1117/12.745829
Show Author Affiliations
M. Kaba, Thales Technology Ctr. Singapore (Singapore)
Thales@NTU (Singapore)
F. C. Zhou, Thales@NTU (Singapore)
A. Lim, Thales@NTU (Singapore)
D. Decoster, Institute Electronic, Microelectronic, Nanotechnology (France)
J.- P. Huignard, Thales Research and Technology (France)
S. Tonda, Thales Research and Technology (France)
D. Dolfi, Thales Research and Technology (France)
J. Chazelas, Thales@NTU (Singapore)
Thales Airborne Systems (France)

Published in SPIE Proceedings Vol. 6781:
Passive Components and Fiber-based Devices IV
Ming-Jun Li; Jianping Chen; Satoki Kawanishi; Ian H. White, Editor(s)

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