OSA's Digital Library

Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 12 — Jun. 7, 2010
  • pp: 12059–12064

Sidelobe suppression in all-fiber acousto-optic tunable filter using torsional acoustic wave

Kwang Jo Lee, In-Kag Hwang, Hyun Chul Park, and Byoung Yoon Kim  »View Author Affiliations


Optics Express, Vol. 18, Issue 12, pp. 12059-12064 (2010)
http://dx.doi.org/10.1364/OE.18.012059


View Full Text Article

Enhanced HTML    Acrobat PDF (836 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We propose two techniques to suppress intrinsic sidelobe spectra in all-fiber acousto-optic tunable filter using torsional acoustic wave. The techniques are based on either double-pass filter configuration or axial tailoring of mode coupling strength along an acousto-optic interaction region in a highly birefringent optical fiber. The sidelobe peak in the filter spectrum is experimentally suppressed from −8.3dB to −16.4dB by employing double-pass configuration. Axial modulation of acousto-optic coupling strength is proposed using axial variation of the fiber diameter, and the simulation results show that the maximum side peak of −9.3dB can be reduced to −22.2dB. We also discuss the possibility of further spectral shaping of the filter based on the axial tailoring of acousto-optic coupling strength.

© 2010 OSA

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(230.1040) Optical devices : Acousto-optical devices

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: February 25, 2010
Revised Manuscript: May 10, 2010
Manuscript Accepted: May 10, 2010
Published: May 24, 2010

Citation
Kwang Jo Lee, In-Kag Hwang, Hyun Chul Park, and Byoung Yoon Kim, "Sidelobe suppression in all-fiber acousto-optic tunable filter using torsional acoustic wave," Opt. Express 18, 12059-12064 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-12-12059


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. H. S. Kim, S. H. Yun, I. K. Kwang, and B. Y. Kim, “All-fiber acousto-optic tunable notch filter with electronically controllable spectral profile,” Opt. Lett. 22(19), 1476–1478 (1997). [CrossRef]
  2. K. J. Lee, D.-I. Yeom, and B. Y. Kim, “Narrowband, polarization insensitive all-fiber acousto-optic tunable bandpass filter,” Opt. Express 15(6), 2987–2992 (2007). [CrossRef] [PubMed]
  3. M. Berwick, C. N. Pannell, P. St. J. Russell, and D. A. Jackson, “Demonstration of birefringent optical fibre frequency shifter employing torsional acoustic waves,” Electron. Lett. 27(9), 713–715 (1991). [CrossRef]
  4. K. J. Lee, H. C. Park, and B. Y. Kim, “Highly efficient all-fiber tunable polarization filter using torsional acoustic wave,” Opt. Express 15(19), 12362–12367 (2007). [CrossRef] [PubMed]
  5. K. J. Lee, K. S. Hong, H. C. Park, and B. Y. Kim, “Polarization coupling in a highly birefringent photonic crystal fiber by torsional acoustic wave,” Opt. Express 16(7), 4631–4638 (2008). [CrossRef] [PubMed]
  6. K. J. Lee, I.-K. Hwang, H. C. Park, and B. Y. Kim, “Polarization-coupling all-fiber acousto-optic tunable filter insensitive to fiber bend and physical contact,” Opt. Express 17(8), 6096–6100 (2009). [CrossRef] [PubMed]
  7. K. J. Lee, I.-K. Hwang, H. C. Park, and B. Y. Kim, “Polarization independent all-fiber acousto-optic tunable filter using torsional acoustic wave,” IEEE Photon. Technol. Lett. 22(8), 523–525 (2010). [CrossRef]
  8. K. J. Lee, I.-K. Hwang, H. C. Park, K. H. Nam, and B. Y. Kim, “Analyses of unintentional intensity modulation in all-fiber acousto-optic tunable filters,” Opt. Express 18(5), 3985–3992 (2010). [CrossRef] [PubMed]
  9. H. C. Park, B. Y. Kim, and H. S. Park, “Apodization of elliptical-core two-mode fiber acousto-optic filter based on acoustic polarization control,” Opt. Lett. 30(23), 3126–3128 (2005). [CrossRef] [PubMed]
  10. D. O. Culverhouse, S. H. Yun, D. J. Richardson, T. A. Birks, S. G. Farwell, and P. S. J. Russell, “Low-loss all-fiber acousto-optic tunable filter,” Opt. Lett. 22(2), 96–98 (1997). [CrossRef] [PubMed]
  11. D. A. Satorius, T. E. Dimmick, and G. L. Burdge, “Double-pass acoustooptic tunable bandpass filter with zero frequency shift and reduced polarization sensitivity,” IEEE Photon. Technol. Lett. 14(9), 1324–1326 (2002). [CrossRef]
  12. A. Kar-Roy and C. S. Tsai, “Low-sidelobe weighted-coupled integrated acoustooptic tunable filter using focused surface acoustic waves,” IEEE Photon. Technol. Lett. 4(10), 1132–1135 (1992). [CrossRef]
  13. D. A. Smith and J. J. Johnson, “Sidelobe suppression in an acousto-optic filter with a raised-cosine interaction strength,” Appl. Phys. Lett. 61(9), 1025–1027 (1992). [CrossRef]
  14. H. E. Engan, “Analysis of polarization-mode coupling by acoustic torsional waves in optical fibers,” J. Opt. Soc. Am. A 13(1), 112–118 (1996). [CrossRef]
  15. B. Langli and K. Bløtekjær, “Effect of acoustic birefringence on acoustooptic interaction in birefringent two-mode optical fibers,” J. Lightwave Technol. 21(2), 528–535 (2003). [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.

Figures

Fig. 1 Fig. 2 Fig. 3
 
Fig. 4
 

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited