Abstract
Theoretical and experimental investigations on a double coupler amplified recirculating delay line (ARDL) microwave photonic bandpass filter are presented. These show that the system involves both coherent and incoherent summation of optical signals. This enables a higher order filter transfer function to be realized, which results in a high-performance frequency response that cannot be achieved by the conventional single coupler ARDL structure. Experimental results are presented that demonstrate a sharp, high skirt selectivity and high stopband rejection level bandpass filter response.
Original language | English |
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Pages (from-to) | 918-920 |
Number of pages | 3 |
Journal | IEEE Photonics Technology Letters |
Volume | 20 |
Issue number | 11 |
DOIs | |
Publication status | Published - 1 Jun 2008 |
Externally published | Yes |