Abstract

We show that an all-fiber acousto-optic tunable filter based on polarization mode coupling using torsional acoustic wave is immune to the fiber bend and physical contact in the acousto-optic interaction region. We also propose and demonstrate a novel strain-free and size-reduced tunable filter with a 4-m-long fiber acousto-optic interaction region looped into a 5-cm-diameter coil.

© 2009 Optical Society of America

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References

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  1. H. S. Kim, S. H. Yun, I. K. Hwang, and B. Y. Kim, "All-fiber acousto-optic tunable notch filter with electronically controllable spectral profile," Opt. Lett. 22, 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, 2987-2992 (2007), http://www.opticsinfobase.org/abstract.cfm?URI=oe-15-6-2987.
    [CrossRef] [PubMed]
  3. K. S. Hong, H. C. Park, B. Y. Kim, I. K. Hwang, W. Jin, and J. Ju, "1000 nm tunable acousto-optic filter based on photonic crystal fiber," Appl. Phys. Lett. 92, 031110 (2008).
    [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, 12362-12367 (2007), http://www.opticsinfobase.org/abstract.cfm?URI=oe-15-19-12362.
    [CrossRef] [PubMed]
  5. H. E. Engan, "Analysis of polarization-mode coupling by acoustic torsional waves in optical fibers," J. Opt. Soc. Am. A 13, 112-118 (1996).
    [CrossRef]
  6. 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, 713-715 (1991).
    [CrossRef]
  7. 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, 4631-4638 (2008), http://www.opticsinfobase.org/abstract.cfm?URI=oe-16-7-4631.
    [CrossRef] [PubMed]
  8. B. Langli and K. Bløtekjær, "Effect of acoustic birefringence on acoustooptic interaction in birefringent two-mode optical fibers," J. Lightwave Technol. 21, 528-535 (2003).
    [CrossRef]
  9. K. J. Lee, I. K. Hwang, H. C. Park, and B. Y. Kim, "Axial strain dependence of all-fiber acousto-optic tunable filters," Opt. Express 17, 2348-2357 (2009), http://www.opticsinfobase.org/abstract.cfm?URI=oe-17-4-2348.
    [CrossRef] [PubMed]
  10. W. V. Sorin, "Methods and apparatus for measuring the power spectrum of optical signals," US Patent 6801686 (2004).
  11. J. Zhao, X. Liu, Y. Wang, and Y. Luo, "Bending effect on fiber acousto-optic mode coupling," Appl. Opt. 44, 5101-5104 (2005).
    [CrossRef] [PubMed]
  12. H. F. Taylor, "Bending effects in optical fibers," J. Lightwave Technol. 2, 617-628 (1984).
    [CrossRef]
  13. S. H. Yun and H. S. Kim, "Resonance in fiber-based acoustooptic devices via acoustic radiation to air," IEEE Photon. Technol. Lett. 16, 147-149 (2004).
    [CrossRef]
  14. A. M. Smith, "Birefringence induced by bends and twists in single-mode optical fiber," Appl. Opt. 19, 2606-2611 (1980).
    [CrossRef] [PubMed]
  15. R. Ulrich, S. C. Rashleigh, and W. Eickhoff, "Bending-induced birefringence in single-mode fibers," Opt. Lett. 5, 273-275 (1980).
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  16. D. Östling and H. E. Engan, "Narrow-band acousto-optic tunable filtering in a two-mode fiber," Opt. Lett. 20, 1247-1249 (1995).
    [CrossRef] [PubMed]

2009 (1)

2008 (2)

2007 (2)

2005 (1)

2004 (1)

S. H. Yun and H. S. Kim, "Resonance in fiber-based acoustooptic devices via acoustic radiation to air," IEEE Photon. Technol. Lett. 16, 147-149 (2004).
[CrossRef]

2003 (1)

1997 (1)

1996 (1)

1995 (1)

1991 (1)

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, 713-715 (1991).
[CrossRef]

1984 (1)

H. F. Taylor, "Bending effects in optical fibers," J. Lightwave Technol. 2, 617-628 (1984).
[CrossRef]

1980 (2)

Berwick, M.

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, 713-715 (1991).
[CrossRef]

Bløtekjær, K.

Eickhoff, W.

Engan, H. E.

Hong, K. S.

Hwang, I. K.

Jackson, D. A.

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, 713-715 (1991).
[CrossRef]

Jin, W.

K. S. Hong, H. C. Park, B. Y. Kim, I. K. Hwang, W. Jin, and J. Ju, "1000 nm tunable acousto-optic filter based on photonic crystal fiber," Appl. Phys. Lett. 92, 031110 (2008).
[CrossRef]

Ju, J.

K. S. Hong, H. C. Park, B. Y. Kim, I. K. Hwang, W. Jin, and J. Ju, "1000 nm tunable acousto-optic filter based on photonic crystal fiber," Appl. Phys. Lett. 92, 031110 (2008).
[CrossRef]

Kim, B. Y.

Kim, H. S.

S. H. Yun and H. S. Kim, "Resonance in fiber-based acoustooptic devices via acoustic radiation to air," IEEE Photon. Technol. Lett. 16, 147-149 (2004).
[CrossRef]

H. S. Kim, S. H. Yun, I. K. Hwang, and B. Y. Kim, "All-fiber acousto-optic tunable notch filter with electronically controllable spectral profile," Opt. Lett. 22, 1476-1478 (1997).
[CrossRef]

Langli, B.

Lee, K. J.

Liu, X.

Luo, Y.

Östling, D.

Pannell, C. N.

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, 713-715 (1991).
[CrossRef]

Park, H. C.

Rashleigh, S. C.

Russell, P. St. J.

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, 713-715 (1991).
[CrossRef]

Smith, A. M.

Taylor, H. F.

H. F. Taylor, "Bending effects in optical fibers," J. Lightwave Technol. 2, 617-628 (1984).
[CrossRef]

Ulrich, R.

Wang, Y.

Yeom, D. -I.

Yun, S. H.

S. H. Yun and H. S. Kim, "Resonance in fiber-based acoustooptic devices via acoustic radiation to air," IEEE Photon. Technol. Lett. 16, 147-149 (2004).
[CrossRef]

H. S. Kim, S. H. Yun, I. K. Hwang, and B. Y. Kim, "All-fiber acousto-optic tunable notch filter with electronically controllable spectral profile," Opt. Lett. 22, 1476-1478 (1997).
[CrossRef]

Zhao, J.

Appl. Opt. (2)

Appl. Phys. Lett. (1)

K. S. Hong, H. C. Park, B. Y. Kim, I. K. Hwang, W. Jin, and J. Ju, "1000 nm tunable acousto-optic filter based on photonic crystal fiber," Appl. Phys. Lett. 92, 031110 (2008).
[CrossRef]

Electron. Lett. (1)

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, 713-715 (1991).
[CrossRef]

IEEE Photon. Technol. Lett. (1)

S. H. Yun and H. S. Kim, "Resonance in fiber-based acoustooptic devices via acoustic radiation to air," IEEE Photon. Technol. Lett. 16, 147-149 (2004).
[CrossRef]

J. Lightwave Technol. (2)

J. Opt. Soc. Am. A (1)

Opt. Express (4)

Opt. Lett. (3)

Other (1)

W. V. Sorin, "Methods and apparatus for measuring the power spectrum of optical signals," US Patent 6801686 (2004).

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Figures (4)

Fig. 1.
Fig. 1.

(a) Schematic of the experimental setup used for measuring the fiber perturbation effect in the all-fiber torsional mode AOTF. The physical fiber perturbations of (b) line contact and (c) bending of AO interaction region. The inset of the Fig. 1(a) shows the cross-section of the elliptical core HB fiber used in this experiment.

Fig. 2.
Fig. 2.

Measured transmission spectra of the all-fiber torsional mode AOTF under the fiber perturbations of (a) the bending, the line contact, and (b) the partial contact in the AO interaction region of the filter. The cases of no perturbation (black line) and line contact (red line) in Fig. 2(a) has a complete overlap. The inset of the Fig. 2(b) illustrates the perturbation by water drop on the optical fiber.

Fig. 3.
Fig. 3.

Schematic of a proposed strain-free and size-reduced all-fiber torsional mode AOTF. The 4 m of AO interaction length is coiled to 5 cm in diameter.

Fig. 4.
Fig. 4.

(a) Measured transmission spectra of the all-fiber AOTF for the AO interaction length of 4 m and (b) the center wavelength of the all-fiber AOTF as a function of the acoustic wavelength.

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