Temperature Insensitive and Low Cost Transversal Filters Based on Uniform Fibre Bragg Gratings(Special Issue on Recent Progress in Microwave and Millimeter-wave Photonics Technologies)

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In this paper, we propose a new configuration to implement transversal filters with negligible temperature sensitivity and low cost. These microwave filters are based on uniform fibre Bragg gratings as slicing elements of a broadband optical source. By using a tapered fibre Bragg grating as a delay line, we show that the temperature effects are the same over each component of the RF-filter. Therefore, it is possible a total cancellation of the thermal effects. The performance of these filters is compared to previous techniques, such as a laser array approach.
社団法人電子情報通信学会の論文
2003-07-01