Abstract

We report a near-ideal in-fiber polarizer implemented by use of 45° tilted fiber Bragg grating structures that are UV inscribed in hydrogenated Ge-doped fiber. We demonstrate a polarization-extinction ratio of 33dB over a 100-nm operation range near 1550nm. We further show an achievement of 99.5% degree of polarization for unpolarized light with these gratings. We also theoretically investigate tilted grating structures based on the Green's function calculation, therein revealing the unique polarization characteristics, which are in excellent agreement with experimental data.

© 2005 Optical Society of America

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References

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2001 (2)

S. L. Mihailov, R. B. Walker, T. J. Stocki, and D. C. Johnson, Electron. Lett. 37, 284 (2001).
[Crossref]

Y. Li, M. Froggatt, and T. Erdogan, J. Lightwave Technol. 19, 1580 (2001).
[Crossref]

2000 (1)

P. S. Westbrook, T. A. Strasser, and T. Erdogan, IEEE Photonics Technol. Lett. 12, 1352 (2000).
[Crossref]

1987 (1)

1980 (2)

Bello, J.

Bergh, R. A.

Dyott, R. B.

Eickhoff, W.

W. Eickhoff, Electron. Lett. 16, 762 (1980).
[Crossref]

Erdogan, T.

Y. Li, M. Froggatt, and T. Erdogan, J. Lightwave Technol. 19, 1580 (2001).
[Crossref]

P. S. Westbrook, T. A. Strasser, and T. Erdogan, IEEE Photonics Technol. Lett. 12, 1352 (2000).
[Crossref]

Froggatt, M.

Glenn, W. H.

G. Meltz, W. W. Morey, and W. H. Glenn, in Optical Fiber Communication, Vol. 1 of 1990 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1990), paper TuG1.

Handerek, V. A.

Johnson, D. C.

S. L. Mihailov, R. B. Walker, T. J. Stocki, and D. C. Johnson, Electron. Lett. 37, 284 (2001).
[Crossref]

Lefevre, H. C.

Li, Y.

Meltz, G.

G. Meltz, W. W. Morey, and W. H. Glenn, in Optical Fiber Communication, Vol. 1 of 1990 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1990), paper TuG1.

Mihailov, S. L.

S. L. Mihailov, R. B. Walker, T. J. Stocki, and D. C. Johnson, Electron. Lett. 37, 284 (2001).
[Crossref]

Morey, W. W.

G. Meltz, W. W. Morey, and W. H. Glenn, in Optical Fiber Communication, Vol. 1 of 1990 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1990), paper TuG1.

Shaw, H. J.

Stocki, T. J.

S. L. Mihailov, R. B. Walker, T. J. Stocki, and D. C. Johnson, Electron. Lett. 37, 284 (2001).
[Crossref]

Strasser, T. A.

P. S. Westbrook, T. A. Strasser, and T. Erdogan, IEEE Photonics Technol. Lett. 12, 1352 (2000).
[Crossref]

Walker, R. B.

S. L. Mihailov, R. B. Walker, T. J. Stocki, and D. C. Johnson, Electron. Lett. 37, 284 (2001).
[Crossref]

Westbrook, P. S.

P. S. Westbrook, T. A. Strasser, and T. Erdogan, IEEE Photonics Technol. Lett. 12, 1352 (2000).
[Crossref]

Electron. Lett. (2)

W. Eickhoff, Electron. Lett. 16, 762 (1980).
[Crossref]

S. L. Mihailov, R. B. Walker, T. J. Stocki, and D. C. Johnson, Electron. Lett. 37, 284 (2001).
[Crossref]

IEEE Photonics Technol. Lett. (1)

P. S. Westbrook, T. A. Strasser, and T. Erdogan, IEEE Photonics Technol. Lett. 12, 1352 (2000).
[Crossref]

J. Lightwave Technol. (1)

Opt. Lett. (2)

Other (1)

G. Meltz, W. W. Morey, and W. H. Glenn, in Optical Fiber Communication, Vol. 1 of 1990 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1990), paper TuG1.

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Figures (5)

Fig. 1
Fig. 1

(a) Transmission spectra of TFBGs with various tilting angles. Dashed curves, p light; solid curves, s light. (b) Transmission losses of TFBGs versus tilting angles for s light and p light. The peak wavelength is set to 1.55 μ m and the period is varied accordingly.

Fig. 2
Fig. 2

Polarization-extinction ratio of s light to p light with respect to grating length for three grating strengths.

Fig. 3
Fig. 3

(a) Image of slanted fringes of a 45° TFBG observed under a microscope. (b), (c) Experimental setups for characterizing the 45° TFBGs. PBS, polarizing beam splitter; other abbreviations defined in text.

Fig. 4
Fig. 4

PDLs of 4.6 - mm and 40 - cm TFBGs measured with the system shown in Fig. 3(b). (b) PDLs of 4.6 - mm and 50 - cm TFBGs measured with the EXFO PDL characterization kit.

Fig. 5
Fig. 5

Full PDL response of a 50 - mm TFBG probed by linearly polarized light from 0° to 360°.

Equations (2)

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α = k 0 3 δ n 2 4 n 1 1 + ( u 2 w 2 ) K 1 2 ( a w ) K 0 2 ( a w ) F ,
F = 0 2 π [ 1 sin 2 θ 0 cos 2 ( δ ϕ ) ] [ K s J 0 ( a u ) J 1 ( a K s ) u J 0 ( a K s ) J 1 ( a u ) K s 2 u 2 ] 2 d ϕ ,

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