Abstract

A simple, flexible method of postfabrication positioning of resonance wavelengths of long-period cladding-mode-coupled gratings is proposed. This method is based on changing the outer fiber diameter. Reducing the diameter by etching the fiber in HF acid shifts the loss peaks to higher wavelengths. A shift as large as 130 nm after 5 min of HF etching was observed for our strongest grating peak, corresponding to the cladding mode HE19. The experimental results are in excellent agreement with model calculations.

© 1996 Optical Society of America

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References

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  1. A. M. Vengsarkar, P. J. Lemaire, J. B. Judkins, V. Bhatia, T. Erdogan, J. E. Sipe, J. Lightwave Technol. 14, 58 (1996).
    [CrossRef]
  2. E. M. Dianov, V. I. Karpov, A. S. Kurkov, O. I. Medvedkov, A. M. Prokhorov, V. N. Protopopov, S. A. Vasiliev, in Photosensitivity and Quadratic Nonlinearity in Glass Waveguides: Fundamentals and Applications, Vol. 22 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), paper SaB3.
  3. E. M. Dianov, A. S. Kurkov, O. I. Medvedkov, S. A. Vasiliev, in Photosensitivity and Quadratic Nonlinearity in Glass Waveguides: Fundamentals and Applications, Vol. 22 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), paper SuB4.
  4. H.-G. Unger, Planar Optical Waveguides and Fibres (Clarendon, Oxford, 1977).
  5. T. Tamir, ed., Integrated Optics, Vol. 7 of Topics in Applied Physics (Springer-Verlag, Berlin, 1975).
  6. E. M. Dianov, A. S. Kurkov, O. I. Medvedkov, S. A. Vasiliev, presented at the 10th European Conference on Solid-State Transducers, Eurosensors, Leuven, Belgium, September 8–11, 1996.

1996 (1)

A. M. Vengsarkar, P. J. Lemaire, J. B. Judkins, V. Bhatia, T. Erdogan, J. E. Sipe, J. Lightwave Technol. 14, 58 (1996).
[CrossRef]

Bhatia, V.

A. M. Vengsarkar, P. J. Lemaire, J. B. Judkins, V. Bhatia, T. Erdogan, J. E. Sipe, J. Lightwave Technol. 14, 58 (1996).
[CrossRef]

Dianov, E. M.

E. M. Dianov, V. I. Karpov, A. S. Kurkov, O. I. Medvedkov, A. M. Prokhorov, V. N. Protopopov, S. A. Vasiliev, in Photosensitivity and Quadratic Nonlinearity in Glass Waveguides: Fundamentals and Applications, Vol. 22 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), paper SaB3.

E. M. Dianov, A. S. Kurkov, O. I. Medvedkov, S. A. Vasiliev, in Photosensitivity and Quadratic Nonlinearity in Glass Waveguides: Fundamentals and Applications, Vol. 22 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), paper SuB4.

E. M. Dianov, A. S. Kurkov, O. I. Medvedkov, S. A. Vasiliev, presented at the 10th European Conference on Solid-State Transducers, Eurosensors, Leuven, Belgium, September 8–11, 1996.

Erdogan, T.

A. M. Vengsarkar, P. J. Lemaire, J. B. Judkins, V. Bhatia, T. Erdogan, J. E. Sipe, J. Lightwave Technol. 14, 58 (1996).
[CrossRef]

Judkins, J. B.

A. M. Vengsarkar, P. J. Lemaire, J. B. Judkins, V. Bhatia, T. Erdogan, J. E. Sipe, J. Lightwave Technol. 14, 58 (1996).
[CrossRef]

Karpov, V. I.

E. M. Dianov, V. I. Karpov, A. S. Kurkov, O. I. Medvedkov, A. M. Prokhorov, V. N. Protopopov, S. A. Vasiliev, in Photosensitivity and Quadratic Nonlinearity in Glass Waveguides: Fundamentals and Applications, Vol. 22 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), paper SaB3.

Kurkov, A. S.

E. M. Dianov, V. I. Karpov, A. S. Kurkov, O. I. Medvedkov, A. M. Prokhorov, V. N. Protopopov, S. A. Vasiliev, in Photosensitivity and Quadratic Nonlinearity in Glass Waveguides: Fundamentals and Applications, Vol. 22 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), paper SaB3.

E. M. Dianov, A. S. Kurkov, O. I. Medvedkov, S. A. Vasiliev, presented at the 10th European Conference on Solid-State Transducers, Eurosensors, Leuven, Belgium, September 8–11, 1996.

E. M. Dianov, A. S. Kurkov, O. I. Medvedkov, S. A. Vasiliev, in Photosensitivity and Quadratic Nonlinearity in Glass Waveguides: Fundamentals and Applications, Vol. 22 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), paper SuB4.

Lemaire, P. J.

A. M. Vengsarkar, P. J. Lemaire, J. B. Judkins, V. Bhatia, T. Erdogan, J. E. Sipe, J. Lightwave Technol. 14, 58 (1996).
[CrossRef]

Medvedkov, O. I.

E. M. Dianov, V. I. Karpov, A. S. Kurkov, O. I. Medvedkov, A. M. Prokhorov, V. N. Protopopov, S. A. Vasiliev, in Photosensitivity and Quadratic Nonlinearity in Glass Waveguides: Fundamentals and Applications, Vol. 22 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), paper SaB3.

E. M. Dianov, A. S. Kurkov, O. I. Medvedkov, S. A. Vasiliev, in Photosensitivity and Quadratic Nonlinearity in Glass Waveguides: Fundamentals and Applications, Vol. 22 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), paper SuB4.

E. M. Dianov, A. S. Kurkov, O. I. Medvedkov, S. A. Vasiliev, presented at the 10th European Conference on Solid-State Transducers, Eurosensors, Leuven, Belgium, September 8–11, 1996.

Prokhorov, A. M.

E. M. Dianov, V. I. Karpov, A. S. Kurkov, O. I. Medvedkov, A. M. Prokhorov, V. N. Protopopov, S. A. Vasiliev, in Photosensitivity and Quadratic Nonlinearity in Glass Waveguides: Fundamentals and Applications, Vol. 22 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), paper SaB3.

Protopopov, V. N.

E. M. Dianov, V. I. Karpov, A. S. Kurkov, O. I. Medvedkov, A. M. Prokhorov, V. N. Protopopov, S. A. Vasiliev, in Photosensitivity and Quadratic Nonlinearity in Glass Waveguides: Fundamentals and Applications, Vol. 22 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), paper SaB3.

Sipe, J. E.

A. M. Vengsarkar, P. J. Lemaire, J. B. Judkins, V. Bhatia, T. Erdogan, J. E. Sipe, J. Lightwave Technol. 14, 58 (1996).
[CrossRef]

Unger, H.-G.

H.-G. Unger, Planar Optical Waveguides and Fibres (Clarendon, Oxford, 1977).

Vasiliev, S. A.

E. M. Dianov, V. I. Karpov, A. S. Kurkov, O. I. Medvedkov, A. M. Prokhorov, V. N. Protopopov, S. A. Vasiliev, in Photosensitivity and Quadratic Nonlinearity in Glass Waveguides: Fundamentals and Applications, Vol. 22 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), paper SaB3.

E. M. Dianov, A. S. Kurkov, O. I. Medvedkov, S. A. Vasiliev, presented at the 10th European Conference on Solid-State Transducers, Eurosensors, Leuven, Belgium, September 8–11, 1996.

E. M. Dianov, A. S. Kurkov, O. I. Medvedkov, S. A. Vasiliev, in Photosensitivity and Quadratic Nonlinearity in Glass Waveguides: Fundamentals and Applications, Vol. 22 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), paper SuB4.

Vengsarkar, A. M.

A. M. Vengsarkar, P. J. Lemaire, J. B. Judkins, V. Bhatia, T. Erdogan, J. E. Sipe, J. Lightwave Technol. 14, 58 (1996).
[CrossRef]

J. Lightwave Technol. (1)

A. M. Vengsarkar, P. J. Lemaire, J. B. Judkins, V. Bhatia, T. Erdogan, J. E. Sipe, J. Lightwave Technol. 14, 58 (1996).
[CrossRef]

Other (5)

E. M. Dianov, V. I. Karpov, A. S. Kurkov, O. I. Medvedkov, A. M. Prokhorov, V. N. Protopopov, S. A. Vasiliev, in Photosensitivity and Quadratic Nonlinearity in Glass Waveguides: Fundamentals and Applications, Vol. 22 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), paper SaB3.

E. M. Dianov, A. S. Kurkov, O. I. Medvedkov, S. A. Vasiliev, in Photosensitivity and Quadratic Nonlinearity in Glass Waveguides: Fundamentals and Applications, Vol. 22 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), paper SuB4.

H.-G. Unger, Planar Optical Waveguides and Fibres (Clarendon, Oxford, 1977).

T. Tamir, ed., Integrated Optics, Vol. 7 of Topics in Applied Physics (Springer-Verlag, Berlin, 1975).

E. M. Dianov, A. S. Kurkov, O. I. Medvedkov, S. A. Vasiliev, presented at the 10th European Conference on Solid-State Transducers, Eurosensors, Leuven, Belgium, September 8–11, 1996.

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Figures (4)

Fig. 1
Fig. 1

Experimental (solid curve) and theoretical (dashed curve) transmission spectra of a long-period grating with 17-mm length (Λ = 200 μm).

Fig. 2
Fig. 2

Initial spectrum (solid curve) and the spectrum after 5 min of HF etching (dashed curve) for a long-period grating (see grating parameters in text).

Fig. 3
Fig. 3

Experimental (circles) and theoretical (curves) resonance wavelengths’ positions as a function of cladding-diameter change.

Fig. 4
Fig. 4

Experimental (symbols) and theoretical (curves) normalized peaks’ intensities as a function of cladding-diameter changes.

Equations (3)

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β core - β clad = 2 π Λ .
η = π Δ n ind I λ r 4 π ,
S = sin 2 ( η L ) ,

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