Abstract

Novel optical attenuation fibers were fabricated by the irradiation of a focused infrared femtosecond pulsed laser onto the core of a silica glass single-mode optical fiber. Optical attenuation at a wavelength of 1.55 µm proportionally increased with increasing numbers of irradiation points and was controllable under laser irradiation conditions. The single-mode property of the waveguide and the mode-field diameter of the optical fiber were maintained after irradiation of the femtosecond laser. It is suggested that the attenuation results from optical scattering at photoinduced spots formed inside the fiber core.

© 2004 Optical Society of America

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References

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    [CrossRef] [PubMed]
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    [CrossRef]
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    [CrossRef]

2001

1999

1998

K. Hirao and K. Miura, J. Non-Cryst. Solids 239, 91 (1998).
[CrossRef]

1997

Y. Takeuchi, S. Mitachi, and R. Nagase, Electron. Lett. 33, 1245 (1997).
[CrossRef]

K. Miura, J. Qiu, H. Inouye, T. Mitsuyu, and K. Hirao, Appl. Phys. Lett. 71, 3329 (1997).
[CrossRef]

1996

Davis, K. M.

Hirao, K.

Inouye, H.

K. Miura, J. Qiu, H. Inouye, T. Mitsuyu, and K. Hirao, Appl. Phys. Lett. 71, 3329 (1997).
[CrossRef]

Kazansky, P.

Kondo, Y.

Matsuyama, E.

Mitachi, S.

Y. Takeuchi, S. Mitachi, and R. Nagase, Electron. Lett. 33, 1245 (1997).
[CrossRef]

Mitsuyu, T.

Y. Kondo, K. Nouchi, T. Mitsuyu, M. Watanabe, P. Kazansky, and K. Hirao, Opt. Lett. 24, 646 (1999).
[CrossRef]

K. Miura, J. Qiu, H. Inouye, T. Mitsuyu, and K. Hirao, Appl. Phys. Lett. 71, 3329 (1997).
[CrossRef]

Miura, K.

K. Hirao and K. Miura, J. Non-Cryst. Solids 239, 91 (1998).
[CrossRef]

K. Miura, J. Qiu, H. Inouye, T. Mitsuyu, and K. Hirao, Appl. Phys. Lett. 71, 3329 (1997).
[CrossRef]

K. M. Davis, K. Miura, N. Sugimoto, and K. Hirao, Opt. Lett. 21, 1729 (1996).
[CrossRef] [PubMed]

Morishita, Y.

Nagase, R.

Y. Takeuchi, S. Mitachi, and R. Nagase, Electron. Lett. 33, 1245 (1997).
[CrossRef]

S. Yanagi and R. Nagase, in Proceedings of the 2002 IEICE General Conference (Institute of Electronics, Information, and Communications Engineers, Tokyo, 2002), paper C-3–108.

Noro, H.

Nouchi, K.

Qiu, J.

K. Miura, J. Qiu, H. Inouye, T. Mitsuyu, and K. Hirao, Appl. Phys. Lett. 71, 3329 (1997).
[CrossRef]

Sugimoto, N.

Takeuchi, Y.

Y. Takeuchi, S. Mitachi, and R. Nagase, Electron. Lett. 33, 1245 (1997).
[CrossRef]

Tanaka, K.

Watanabe, M.

Yanagi, S.

S. Yanagi and R. Nagase, in Proceedings of the 2002 IEICE General Conference (Institute of Electronics, Information, and Communications Engineers, Tokyo, 2002), paper C-3–108.

Appl. Phys. Lett.

K. Miura, J. Qiu, H. Inouye, T. Mitsuyu, and K. Hirao, Appl. Phys. Lett. 71, 3329 (1997).
[CrossRef]

Electron. Lett.

Y. Takeuchi, S. Mitachi, and R. Nagase, Electron. Lett. 33, 1245 (1997).
[CrossRef]

J. Non-Cryst. Solids

K. Hirao and K. Miura, J. Non-Cryst. Solids 239, 91 (1998).
[CrossRef]

Opt. Lett.

Other

S. Yanagi and R. Nagase, in Proceedings of the 2002 IEICE General Conference (Institute of Electronics, Information, and Communications Engineers, Tokyo, 2002), paper C-3–108.

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Figures (4)

Fig. 1
Fig. 1

Experimental setup for irradiation of a fs laser.

Fig. 2
Fig. 2

Relationship between the optical loss and the number of irradiation points inside an optical fiber. The NAs are those of objective lenses.

Fig. 3
Fig. 3

Inner structure of a silica glass single-mode optical fiber irradiated with a fs laser: (a) transmission image of the irradiated fiber and (b) magnified image of a laser-irradiated point.

Fig. 4
Fig. 4

Power distribution of light emitted from the attenuation fiber with 10-dB attenuation. The wavelength of the light was 1.55 µm. MFD, mode-field diameter.

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