Abstract

A study of using a single crystal photo-elastic modulator for active Q-switching of a fiber laser is presented. The modulator, which oscillates in a longitudinal eigenmode, was realized with LiTaO3. This induces due to the photo-elastic effect a modulated artificial birefringence which modulates the polarization of passing light. When used together with a polarizer inside a laser cavity the laser photon life time is strongly modulated and the laser may start to emit laser pulses. We realized this with a fiber laser based on a 5m long double clad Nd-doped fiber. The pulse repetition frequency was 400 kHz and the pulse duration 300ns.

© 2007 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]
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    [CrossRef] [PubMed]
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    [CrossRef]
  9. P. Pérez-Millán, A. Díez, M. Andrés, D. Zalvidea, and R. Duchowicz, "Q-switched all-fiber laser based on magnetostriction modulation of a Bragg grating," Opt. Express 13, 5046-5051 (2005).
    [CrossRef] [PubMed]
  10. Y. Joeng, Y. Kim, A. Liem, K. Moerl, S. Hoefer, A. Tuennermann, and K. Oh, "Q-switching of Yb3+-doped fiber laser using a novel micro-optical waveguide on microactuating platform light modulator," Opt. Express 13, 10302-10309 (2005).
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  11. D. Sabourdy, D. Bouyge, A. Crunteanu, P. Blondy, V. Couderc, J. Lhermite, V. Kermène, A. Desfarges-Berthelemot, L. Grossard, A. Barthélemy, M. Somekh, and D. Pureur, "Novel active Q-switched fiber laser based on electrostatically actuated micro-mirror system," Opt. Express 14, 3917-3922 (2006).
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  13. www.hindsinstruments.com
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2006 (3)

2005 (3)

2004 (2)

V. N. Philippov, A. V. Kiryanov, and S. Unger, "Advanced configuration of erbium fiber passively Q-switched laser with Co:ZnSe crystal as saturable absorber," IEEE Photon. Technol. Lett. 16, 57-59 (2004).
[CrossRef]

J.  Dörring, A.  Killi, U.  Morgner, A.  Lang, M.  Lederer, and D.  Kopf, "Period doubling and deterministic chaos in continuously pumped regenerative amplifiers," Opt. Express 12, 1759-1768 (2004).
[CrossRef] [PubMed]

2003 (1)

A. F. El-Sherif and T. A. King, "High energy, high brightness Q-switched Tm3+-doped fibre laser using an electro-optic modulator," Opt. Commun. 218, 337-344 (2003).
[CrossRef]

2002 (1)

1999 (2)

1990 (1)

1969 (1)

Andres, M.

Andres, M. V.

D. D. Zalvidea, N. A. Russo, R. Duchowicz, M. Delgado-Pinar, A. Dýez, J. L. Cruz, and M. V. Andres,"High-repetition rate acoustic-induced Q-switched all-fiber laser," Opt. Commun. 244, 315-319 (2005).
[CrossRef]

Andrés, M.

Bammer, F.

Barthélemy, A.

Blondy, P.

Bouyge, D.

Chardon, A. M.

Cho, N. M.

Chu, P. L.

L. Luo and P. L. Chu, "Passive Q-switched erbium-doped fibre laser with saturable absorber," Opt. Commun. 161, 257-263 (1999).
[CrossRef]

Clarkson, W. A.

Couderc, V.

Crunteanu, A.

Cruz, J. L.

D. D. Zalvidea, N. A. Russo, R. Duchowicz, M. Delgado-Pinar, A. Dýez, J. L. Cruz, and M. V. Andres,"High-repetition rate acoustic-induced Q-switched all-fiber laser," Opt. Commun. 244, 315-319 (2005).
[CrossRef]

Delgado-Pinar, M.

M. Delgado-Pinar, D. Zalvidea, A. Diez, P. Perez-Millan, and M. Andres, "Q-switching of an all-fiber laser by acousto-optic modulation of a fiber Bragg grating," Opt. Express 14, 1106-1112 (2006).
[CrossRef] [PubMed]

D. D. Zalvidea, N. A. Russo, R. Duchowicz, M. Delgado-Pinar, A. Dýez, J. L. Cruz, and M. V. Andres,"High-repetition rate acoustic-induced Q-switched all-fiber laser," Opt. Commun. 244, 315-319 (2005).
[CrossRef]

Desfarges-Berthelemot, A.

Diez, A.

Díez, A.

Dörring, J.

Duchowicz, R.

P. Pérez-Millán, A. Díez, M. Andrés, D. Zalvidea, and R. Duchowicz, "Q-switched all-fiber laser based on magnetostriction modulation of a Bragg grating," Opt. Express 13, 5046-5051 (2005).
[CrossRef] [PubMed]

D. D. Zalvidea, N. A. Russo, R. Duchowicz, M. Delgado-Pinar, A. Dýez, J. L. Cruz, and M. V. Andres,"High-repetition rate acoustic-induced Q-switched all-fiber laser," Opt. Commun. 244, 315-319 (2005).
[CrossRef]

Dýez, A.

D. D. Zalvidea, N. A. Russo, R. Duchowicz, M. Delgado-Pinar, A. Dýez, J. L. Cruz, and M. V. Andres,"High-repetition rate acoustic-induced Q-switched all-fiber laser," Opt. Commun. 244, 315-319 (2005).
[CrossRef]

El-Sherif, A. F.

A. F. El-Sherif and T. A. King, "High energy, high brightness Q-switched Tm3+-doped fibre laser using an electro-optic modulator," Opt. Commun. 218, 337-344 (2003).
[CrossRef]

Ferhaus, H. L.

Gini, E.

Girard, S.

Grossard, L.

Hoefer, S.

Holzinger, B.

Hring, R.

Joeng, Y.

Keller, U.

Kemp, J. C.

Kermène, V.

Killi, A.

Kim, Y.

King, T. A.

A. F. El-Sherif and T. A. King, "High energy, high brightness Q-switched Tm3+-doped fibre laser using an electro-optic modulator," Opt. Commun. 218, 337-344 (2003).
[CrossRef]

Kiryanov, A. V.

V. N. Philippov, A. V. Kiryanov, and S. Unger, "Advanced configuration of erbium fiber passively Q-switched laser with Co:ZnSe crystal as saturable absorber," IEEE Photon. Technol. Lett. 16, 57-59 (2004).
[CrossRef]

Kopf, D.

Lang, A.

Laroche, M.

Lederer, M.

Lhermite, J.

Liem, A.

Luo, L.

L. Luo and P. L. Chu, "Passive Q-switched erbium-doped fibre laser with saturable absorber," Opt. Commun. 161, 257-263 (1999).
[CrossRef]

Melchior, H.

Moerl, K.

Moncorge, R.

Morgner, U.

Nilsson, J.

Oh, K.

Paschotta, R.

Perez-Millan, P.

Pérez-Millán, P.

Philippov, V. N.

V. N. Philippov, A. V. Kiryanov, and S. Unger, "Advanced configuration of erbium fiber passively Q-switched laser with Co:ZnSe crystal as saturable absorber," IEEE Photon. Technol. Lett. 16, 57-59 (2004).
[CrossRef]

Po, H.

Pureur, D.

Richardson, D. J.

Russo, N. A.

D. D. Zalvidea, N. A. Russo, R. Duchowicz, M. Delgado-Pinar, A. Dýez, J. L. Cruz, and M. V. Andres,"High-repetition rate acoustic-induced Q-switched all-fiber laser," Opt. Commun. 244, 315-319 (2005).
[CrossRef]

Sabourdy, D.

Schumi, T.

Shepherd, D. P.

Somekh, M.

Tuennermann, A.

Unger, S.

V. N. Philippov, A. V. Kiryanov, and S. Unger, "Advanced configuration of erbium fiber passively Q-switched laser with Co:ZnSe crystal as saturable absorber," IEEE Photon. Technol. Lett. 16, 57-59 (2004).
[CrossRef]

Zalvidea, D.

Zalvidea, D. D.

D. D. Zalvidea, N. A. Russo, R. Duchowicz, M. Delgado-Pinar, A. Dýez, J. L. Cruz, and M. V. Andres,"High-repetition rate acoustic-induced Q-switched all-fiber laser," Opt. Commun. 244, 315-319 (2005).
[CrossRef]

Zenteno, L. A.

IEEE Photon. Technol. Lett. (1)

V. N. Philippov, A. V. Kiryanov, and S. Unger, "Advanced configuration of erbium fiber passively Q-switched laser with Co:ZnSe crystal as saturable absorber," IEEE Photon. Technol. Lett. 16, 57-59 (2004).
[CrossRef]

J. Opt. Soc. Am. (1)

Opt. Commun. (3)

L. Luo and P. L. Chu, "Passive Q-switched erbium-doped fibre laser with saturable absorber," Opt. Commun. 161, 257-263 (1999).
[CrossRef]

D. D. Zalvidea, N. A. Russo, R. Duchowicz, M. Delgado-Pinar, A. Dýez, J. L. Cruz, and M. V. Andres,"High-repetition rate acoustic-induced Q-switched all-fiber laser," Opt. Commun. 244, 315-319 (2005).
[CrossRef]

A. F. El-Sherif and T. A. King, "High energy, high brightness Q-switched Tm3+-doped fibre laser using an electro-optic modulator," Opt. Commun. 218, 337-344 (2003).
[CrossRef]

Opt. Express (6)

Opt. Lett. (3)

Other (4)

www.hindsinstruments.com

J. F. Nye, Physical Properties of Crystals, (Oxford Science Publication, 1984), Chap. 14

K.  Wong, Properties of Lithium Niobate, (INSPEC, London, 2002), Chap. 8

T. A. Maldonado, "Electro-optic modulators," in Handbook of Optics, M. Bass, ed., (Mc Graw Hill, Orlando, 1995).

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Figures (4)

Fig. 1.
Fig. 1.

A single crystal photo-elastic modulator made of a 3m-crystal

Fig. 2.
Fig. 2.

Course of amplitude (top) and phase (bottom) of current and deformation at one typical resonance of a piezo-electric element against normalized frequency.

Fig. 3.
Fig. 3.

Setup of a fiber laser with SCPEM Q-switch. Two photo detectors are used simultaneously in order to detect both the transmittance of the SCPEM and the output pulses of the laser.

Fig. 4.
Fig. 4.

voltage course on the crystal (1), current signal of the crystal (2), measured transmission for the pumping light (blue) and estimated transmission for the laser light (red) (3), optical output of the laser (4)

Equations (5)

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δ = L λ ( n h n v ) ,
δ = A sin ω r t ,
T r ( δ ) = cos 2 ( π 2 δ )
δ p ( t ) = 0.70 sin ( ω r t )
δ 1 ( t ) = 2 λ p λ 1 δ p ( t )

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