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Journal of Lightwave Technology

Journal of Lightwave Technology


  • Vol. 25, Iss. 6 — Jun. 1, 2007
  • pp: 1441–1446

Reflective Amplified Recirculating Delay Line Bandpass Filter

Erwin H. W. Chan and Robert A. Minasian

Journal of Lightwave Technology, Vol. 25, Issue 6, pp. 1441-1446 (2007)

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A new microwave photonic filter structure that can achieve a high Q factor, high stopband rejection, and high skirt selectivity bandpass filter response simultaneously is presented. It is based on reflecting the signal back into a single amplified optical recirculating delay line and comprises coherent summation of the multiple signals that constitute each tap and incoherent summation of the successive taps. This introduces a new class of filter operation and effectively enables the realization of a higher order bandpass filter characteristic in a very simple structure. Experimental results are presented that demonstrate a multiple-tap high-Q bandpass filter response that also displays high stopband rejection level and high skirt selectivity.

© 2007 IEEE

Erwin H. W. Chan and Robert A. Minasian, "Reflective Amplified Recirculating Delay Line Bandpass Filter," J. Lightwave Technol. 25, 1441-1446 (2007)

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