OSA's Digital Library

Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 46, Iss. 29 — Oct. 10, 2007
  • pp: 7179–7183

Coherence-free microwave photonic notch filter with a single driver intensity modulator in a Sagnac fiber loop

Guoxiang Ning and Ping Shum  »View Author Affiliations

Applied Optics, Vol. 46, Issue 29, pp. 7179-7183 (2007)

View Full Text Article

Enhanced HTML    Acrobat PDF (1164 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



A coherence-free microwave photonic filter configuration is presented. The configuration is based on a Sagnac loop interferometer containing a single-drive intensity modulator without a nonreciprocal bias unit. A notch response is obtained by modulating the clockwise and counterclockwise propagating waves inside the Sagnac loop at different times. A general theoretical analysis for both the reflected signal and the transmitted signal is obtained. Measured results verify the theoretical expressions and demonstrate a robust notch filter response.

© 2007 Optical Society of America

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(070.6020) Fourier optics and signal processing : Continuous optical signal processing

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: February 16, 2007
Revised Manuscript: August 1, 2007
Manuscript Accepted: August 31, 2007
Published: October 4, 2007

Guoxiang Ning and Ping Shum, "Coherence-free microwave photonic notch filter with a single driver intensity modulator in a Sagnac fiber loop," Appl. Opt. 46, 7179-7183 (2007)

Sort:  Year  |  Journal  |  Reset  


  1. J. Capmany, B. Ortega, D. Pastor, and S. Sales, "Discrete-time optical processing of microwave signals," J. Lightwave Technol. 23, 702-723 (2005). [CrossRef]
  2. R. A. Minasian, "Photonic signal processing of microwave signals," IEEE Trans. Microwave Theory Technol. 54, 832-846 (2006). [CrossRef]
  3. D. Pastor and J. Capmany, "Fibre optic tunable transversal filter using laser array and linearly chirped fibre grating," Electron. Lett. 34, 1684-1685 (1998). [CrossRef]
  4. E. H. W. Chan, K. E. Alameh, and J. A. R. Minasian, "Photonics bandpass filters with high skirt selectivity and stopband attenuation," J. Lightwave Technol. 20, 1962-1967 (2002). [CrossRef]
  5. W. Zhang, J. A. R. Williams, and I. Bennion, "Optical fiber delay line filter free of limitation imposed by optical coherence," Electron. Lett. 35, 2133-2134 (1999). [CrossRef]
  6. W. Zhang, J. A. R. Williams, and I. Bennion, "Polarization synthesized optical transversal filter employing high birefringence fiber Gratings," IEEE Photon. Technol. Lett. 13, 523-525 (2001). [CrossRef]
  7. E. H. W. Chan and R. A. Minasian, "Coherent-free photonic notch filter," Electron. Lett. 40, 1375-1377 (2004). [CrossRef]
  8. M. L. Dennis, I. N. Dualing III, and W. K. Burns, "Inherently bias free amplitude modulator," Electron. Lett. 32, 547-548 (1996). [CrossRef]
  9. M. Y. Frankel and R. D. Esman, "Optical single-sideband suppressed-carrier modulator for wide-band signal processing," J. Lightwave Technol. 16, 859-863 (1998). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


Fig. 1 Fig. 2 Fig. 3
Fig. 4

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited