Abstract

The use of upconversion to attenuate/modulate optical signals is proposed, and experimental results are presented. In this light controlling light approach, a 711.2 nm, 700 mW beam propagating in a Tm3+-doped fluorozirconate optical fiber was attenuated down to 150 mW by copropagating a 1117 nm beam. Further characterizations concerning time response of the transmittance revealed the limits and potential of the scheme. The maximum attenuation of a 45 cm fiber, 75%, was reached up to 400 Hz, and at least 37% modulation was measured at 770 Hz. Potential applications include Q switching of lasers and in-fiber light-controllable optical attenuation.

© 2009 Optical Society of America

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References

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2007 (1)

2006 (1)

E. B. Mejia, J. Appl. Phys. 100, 113110 (2006).
[CrossRef]

2004 (2)

2001 (1)

1998 (1)

1995 (1)

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D. S. Funk, J. W. Carlson, and J. G. Eden, Electron. Lett. 30, 1859 (1994).
[CrossRef]

1990 (1)

J. Y. Allain, M. Monerie, and H. Poignant, Electron. Lett. 26, 166 (1990).
[CrossRef]

1983 (1)

Allain, J. Y.

J. Y. Allain, M. Monerie, and H. Poignant, Electron. Lett. 26, 166 (1990).
[CrossRef]

Androz, G.

Ashkin, A.

Carlson, J. W.

D. S. Funk, J. W. Carlson, and J. G. Eden, Electron. Lett. 30, 1859 (1994).
[CrossRef]

Dziedzic, J. M.

Eden, J. G.

D. S. Funk, J. W. Carlson, and J. G. Eden, Electron. Lett. 30, 1859 (1994).
[CrossRef]

Faucher, D.

Ford, J. E.

Funk, D. S.

D. S. Funk, J. W. Carlson, and J. G. Eden, Electron. Lett. 30, 1859 (1994).
[CrossRef]

Gingras, D.

Goossen, K. W.

Gosnell, T. R.

Greywall, D. S.

Himei, Y.

Hirao, K.

Khan, S. A.

Mejia, E. B.

E. B. Mejia, J. Appl. Phys. 100, 113110 (2006).
[CrossRef]

Monerie, M.

J. Y. Allain, M. Monerie, and H. Poignant, Electron. Lett. 26, 166 (1990).
[CrossRef]

Nakajima, S.

Poignant, H.

J. Y. Allain, M. Monerie, and H. Poignant, Electron. Lett. 26, 166 (1990).
[CrossRef]

Qiu, J.

Reddy, B. R.

Riza, N. A.

Sakamoto, A.

Stolen, R. H.

Tian, W. Y.

Vallee, R.

Walker, J. A.

Xie, P.

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Figures (6)

Fig. 1
Fig. 1

Partial energy levels of Tm 3 + in a ZBLAN glass [1, 10].

Fig. 2
Fig. 2

Experimental setup. The abbreviations are defined in the text.

Fig. 3
Fig. 3

Transmittance as function of wavelength for a 45 cm fiber. The percentage that 50 mW (710–770 nm) transmitted signals are attenuated by copropagating 830 mW of 1117 nm is shown.

Fig. 4
Fig. 4

Transmitted probe (725 nm) as function of control (1117 nm) power. Before applying the control, the probe was (stars) 4.1 mW, (triangles) 11.4 mW, (circles) 21.4 mW, and (squares) 51.1 mW.

Fig. 5
Fig. 5

Modulation of the 2.4 mW probe signal (small amplitude, left scale) by a 350 mW control signal (larger amplitude, right scale) chopped at different frequencies. Horizontal dashed lines show the levels for the highest modulation.

Fig. 6
Fig. 6

High power modulation (24 mW probe signal) by a 770 Hz modulated 350 mW control signal.

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