Abstract

We propose and demonstrate an active Q-switched fiber laser using a high-Q microsphere resonator as the Q-switching element. The laser cavity consists of an Er-doped fiber as the gain medium, a glass microsphere reflector (coupled through a fiber taper) at one end of the cavity, and a fiber Bragg grating reflector at the other end. The reflectivity of the microsphere is modulated by changing the gap between the microsphere and the fiber taper. Active Q switching is realized by oscillating the microsphere in and out of contact with the taper. Using this novel technique, we have obtained giant pulses (maximum peak power 102W, duration 160ns) at a low pump-power threshold (3mW).

© 2006 Optical Society of America

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References

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2006 (3)

2005 (1)

2003 (1)

2002 (3)

2001 (1)

2000 (1)

M. Cai, O. Painter, and K. J. Vahala, Phys. Rev. Lett. 85, 74 (2000).
[CrossRef] [PubMed]

1997 (2)

1995 (1)

Agger, S.

T. V. Andersen, P. Perez-Millan, S. R. Keiding, S. Agger, R. Duchowicz, and M. V. Andres, Opt. Commun. 260, 251 (2006).
[CrossRef]

Andersen, T. V.

T. V. Andersen, P. Perez-Millan, S. R. Keiding, S. Agger, R. Duchowicz, and M. V. Andres, Opt. Commun. 260, 251 (2006).
[CrossRef]

Andres, M. V.

T. V. Andersen, P. Perez-Millan, S. R. Keiding, S. Agger, R. Duchowicz, and M. V. Andres, Opt. Commun. 260, 251 (2006).
[CrossRef]

Andrés, M. V.

Barthélemy, A.

Birks, T. A.

Blondy, P.

Bouyge, D.

Cai, M.

M. Cai, O. Painter, and K. J. Vahala, Phys. Rev. Lett. 85, 74 (2000).
[CrossRef] [PubMed]

Chardon, A. M.

Chernikov, S. V.

Cheung, G.

Clarkson, W. A.

Couderc, V.

Crunteanu, A.

Delgado-Pinar, M.

Desfarges-Berthelemot, A.

Díez, A.

Duchowicz, R.

T. V. Andersen, P. Perez-Millan, S. R. Keiding, S. Agger, R. Duchowicz, and M. V. Andres, Opt. Commun. 260, 251 (2006).
[CrossRef]

El-Sherif, A. F.

Filippov, V. N.

Gapontsev, V. P.

Grossard, L.

Hare, J.

Haroche, S.

Hoefer, S.

Jacques, F.

Joeng, Y.

Keiding, S. R.

T. V. Andersen, P. Perez-Millan, S. R. Keiding, S. Agger, R. Duchowicz, and M. V. Andres, Opt. Commun. 260, 251 (2006).
[CrossRef]

Kermène, V.

Kieu, Kh.

Kh. Kieu and M. Mansuripur, "Fiber laser using microsphere resonator as feedback element," Opt. Lett. (to be published).

Kim, Y.

King, T. A.

Kippenberg, T. J.

T. J. Kippenberg, S. M. Spillane, and K. J. Vahala, Opt. Lett. 27, 1669 (2002).
[CrossRef]

S. M. Spillane, T. J. Kippenberg, and K. J. Vahala, Nature 415, 621 (2002).
[CrossRef] [PubMed]

Kir'yanov, A. V.

Knight, J. C.

Laroche, M.

Lefevre-Seguin, V.

Lhermite, J.

Liem, A.

Mansuripur, M.

Kh. Kieu and M. Mansuripur, "Fiber laser using microsphere resonator as feedback element," Opt. Lett. (to be published).

Moerl, K.

Nilsson, J.

Oh, K.

Painter, O.

M. Cai, O. Painter, and K. J. Vahala, Phys. Rev. Lett. 85, 74 (2000).
[CrossRef] [PubMed]

Perez-Millan, P.

T. V. Andersen, P. Perez-Millan, S. R. Keiding, S. Agger, R. Duchowicz, and M. V. Andres, Opt. Commun. 260, 251 (2006).
[CrossRef]

Pérez-Millán, P.

Pureur, D.

Raimond, J.-M.

Sabourdy, D.

Sandoghdar, V.

Shepherd, D. P.

Siegman, A. E.

A. E. Siegman, Lasers (University Science Books, 1986).

Somekh, M.

Spillane, S. M.

S. M. Spillane, T. J. Kippenberg, and K. J. Vahala, Nature 415, 621 (2002).
[CrossRef] [PubMed]

T. J. Kippenberg, S. M. Spillane, and K. J. Vahala, Opt. Lett. 27, 1669 (2002).
[CrossRef]

Starodumov, A. N.

Taylor, J. R.

Tuennermann, A.

Vahala, K. J.

T. J. Kippenberg, S. M. Spillane, and K. J. Vahala, Opt. Lett. 27, 1669 (2002).
[CrossRef]

S. M. Spillane, T. J. Kippenberg, and K. J. Vahala, Nature 415, 621 (2002).
[CrossRef] [PubMed]

M. Cai, O. Painter, and K. J. Vahala, Phys. Rev. Lett. 85, 74 (2000).
[CrossRef] [PubMed]

Weiss, D. S.

Zalvidea, D.

Zhu, Y.

Nature (1)

S. M. Spillane, T. J. Kippenberg, and K. J. Vahala, Nature 415, 621 (2002).
[CrossRef] [PubMed]

Opt. Commun. (1)

T. V. Andersen, P. Perez-Millan, S. R. Keiding, S. Agger, R. Duchowicz, and M. V. Andres, Opt. Commun. 260, 251 (2006).
[CrossRef]

Opt. Express (3)

Opt. Lett. (7)

Phys. Rev. Lett. (1)

M. Cai, O. Painter, and K. J. Vahala, Phys. Rev. Lett. 85, 74 (2000).
[CrossRef] [PubMed]

Other (2)

A. E. Siegman, Lasers (University Science Books, 1986).

Kh. Kieu and M. Mansuripur, "Fiber laser using microsphere resonator as feedback element," Opt. Lett. (to be published).

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Figures (5)

Fig. 1
Fig. 1

Fiber laser having a FBG reflector on one side and an oscillating microsphere reflector on the other side of the Er-doped fiber.

Fig. 2
Fig. 2

Shape of the Q-switched pulse: pump power 60 mW ; oscillation frequency 700 Hz . Inset, photograph of the taper (horizontal white line) and the microsphere directly above the taper (silica glass, 60 μ m diameter, not oscillating when photographed).

Fig. 3
Fig. 3

Typical output pulse train of the actively Q-switched laser: pump power 20 mW ; microsphere oscillation frequency 940 Hz . Corresponding sinusoidal signal that drives the microsphere oscillations.

Fig. 4
Fig. 4

Shape of the Q-switched pulse: pump power 20 mW ; oscillation frequency 940 Hz . Inset photograph of the taper (horizontal white line) and the oscillating microsphere.

Fig. 5
Fig. 5

Emission spectrum of the laser at a pump power of 50 mW . Inset shows the average output power versus the pump power.

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