Abstract

We demonstrate the first use of InGaAs/GaAs as a saturable absorber in the Q-switching of a diode pumped Tm3+ doped laser operating at the wavelengths of 1940 nm and 1986 nm. The influence of the semiconductor saturable absorber’s (SESA) position and thermal lens effect on the Q-switch characteristics was investigated. With a pump power of 35 W, the maximum pulse energy of 28.1 μJ with a pulse width of 447 ns at the pulse repetition frequency (PRF) of 43.7 kHz was obtained by selecting the appropriate position of the SESA.

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2010 (1)

2009 (1)

2006 (2)

A. Li, S. C. Liu, K. W. Su, Y. L. Liao, S. C. Huang, Y. F. Chen, and K. F. Huang, “InGaAsP quantum-wells saturable absorber for diode-pumped passively Q -switched 1.3-μm lasers,” Appl. Phys. B 84(3), 429–431 (2006).
[CrossRef]

W. J. He, B. Q. Yao, Y. L. Ju, and Y. Z. Wang, “Diode-pumped efficient Tm,Ho:GdVO(4) laser with near-diffraction limited beam quality,” Opt. Express 14(24), 11653–11659 (2006).
[CrossRef] [PubMed]

2004 (2)

2003 (1)

2000 (1)

1999 (1)

J. Gu, F. Zhou, W. Xie, S. C. Tam, and Y. L. Lam, “Passive Q-switching of a diode-pumped Nd:YAG laser with a GaAs output coupler,” Opt. Commun. 165(4-6), 245–249 (1999).
[CrossRef]

1996 (4)

1994 (1)

Y. K. Kuo, M. Birnbaum, and W. Chen, “Ho:YLiF4 saturable absorber Q-switch for the 2-μm Tm, Cr:Y3Al5O12 laser,” Appl. Phys. Lett. 65(24), 3060–3062 (1994).
[CrossRef]

1993 (1)

1983 (1)

Amzajerdian, F.

Barnes, B. W.

Beyon, J. Y.

Birnbaum, M.

Brewer, A.

Brown, C. T. A.

Budni, P. A.

Calvez, S.

Chen, W.

Y. K. Kuo, M. Birnbaum, and W. Chen, “Ho:YLiF4 saturable absorber Q-switch for the 2-μm Tm, Cr:Y3Al5O12 laser,” Appl. Phys. Lett. 65(24), 3060–3062 (1994).
[CrossRef]

Chen, Y. F.

A. Li, S. C. Liu, K. W. Su, Y. L. Liao, S. C. Huang, Y. F. Chen, and K. F. Huang, “InGaAsP quantum-wells saturable absorber for diode-pumped passively Q -switched 1.3-μm lasers,” Appl. Phys. B 84(3), 429–431 (2006).
[CrossRef]

Chicklis, E. P.

Davis, R. E.

Dawson, M. D.

Denisov, I. A.

Fusari, F.

Gaeta, A. L.

Gaponenko, M. S.

Garetz, B. A.

Gu, J.

J. Gu, F. Zhou, W. Xie, S. C. Tam, and Y. L. Lam, “Passive Q-switching of a diode-pumped Nd:YAG laser with a GaAs output coupler,” Opt. Commun. 165(4-6), 245–249 (1999).
[CrossRef]

Hara, H.

Hardesty, R. M.

He, W. J.

Huang, K. F.

A. Li, S. C. Liu, K. W. Su, Y. L. Liao, S. C. Huang, Y. F. Chen, and K. F. Huang, “InGaAsP quantum-wells saturable absorber for diode-pumped passively Q -switched 1.3-μm lasers,” Appl. Phys. B 84(3), 429–431 (2006).
[CrossRef]

Huang, M. F.

Huang, S. C.

A. Li, S. C. Liu, K. W. Su, Y. L. Liao, S. C. Huang, Y. F. Chen, and K. F. Huang, “InGaAsP quantum-wells saturable absorber for diode-pumped passively Q -switched 1.3-μm lasers,” Appl. Phys. B 84(3), 429–431 (2006).
[CrossRef]

Ismail, S.

Ju, Y. L.

Kajava, T. T.

Kavaya, M. J.

Khosrofian, J. M.

Kisel, V. E.

Knights, M. G.

Koch, G. J.

Kong, J.

Kuleshov, N. V.

Kuo, Y. K.

Kurilchik, S. V.

Lagatsky, A. A.

Lam, Y. L.

J. Gu, F. Zhou, W. Xie, S. C. Tam, and Y. L. Lam, “Passive Q-switching of a diode-pumped Nd:YAG laser with a GaAs output coupler,” Opt. Commun. 165(4-6), 245–249 (1999).
[CrossRef]

Li, A.

A. Li, S. C. Liu, K. W. Su, Y. L. Liao, S. C. Huang, Y. F. Chen, and K. F. Huang, “InGaAsP quantum-wells saturable absorber for diode-pumped passively Q -switched 1.3-μm lasers,” Appl. Phys. B 84(3), 429–431 (2006).
[CrossRef]

Liao, Y. L.

A. Li, S. C. Liu, K. W. Su, Y. L. Liao, S. C. Huang, Y. F. Chen, and K. F. Huang, “InGaAsP quantum-wells saturable absorber for diode-pumped passively Q -switched 1.3-μm lasers,” Appl. Phys. B 84(3), 429–431 (2006).
[CrossRef]

Lipovskii, A. A.

Liu, S. C.

A. Li, S. C. Liu, K. W. Su, Y. L. Liao, S. C. Huang, Y. F. Chen, and K. F. Huang, “InGaAsP quantum-wells saturable absorber for diode-pumped passively Q -switched 1.3-μm lasers,” Appl. Phys. B 84(3), 429–431 (2006).
[CrossRef]

Lu, J.

Malyarevich, A. M.

Meng, X. L.

Ng, S. P.

Petros, M.

Qin, L. J.

Randall, M.

Schepler, K. L.

Sibbett, W.

Singh, U. N.

Skoptsov, N. A.

Su, K. W.

A. Li, S. C. Liu, K. W. Su, Y. L. Liao, S. C. Huang, Y. F. Chen, and K. F. Huang, “InGaAsP quantum-wells saturable absorber for diode-pumped passively Q -switched 1.3-μm lasers,” Appl. Phys. B 84(3), 429–431 (2006).
[CrossRef]

Tam, S. C.

J. Gu, F. Zhou, W. Xie, S. C. Tam, and Y. L. Lam, “Passive Q-switching of a diode-pumped Nd:YAG laser with a GaAs output coupler,” Opt. Commun. 165(4-6), 245–249 (1999).
[CrossRef]

Tang, D.

Tang, D. Y.

Ueda, K.

Unlu, F.

Vay, S.

Wang, Y. Z.

Wulfmeyer, V.

Xie, W.

J. Gu, F. Zhou, W. Xie, S. C. Tam, and Y. L. Lam, “Passive Q-switching of a diode-pumped Nd:YAG laser with a GaAs output coupler,” Opt. Commun. 165(4-6), 245–249 (1999).
[CrossRef]

Yagi, H.

Yanagitani, T.

Yao, B. Q.

Yokozawa, T.

Yu, J.

Yumashev, K. V.

Zhou, F.

J. Gu, F. Zhou, W. Xie, S. C. Tam, and Y. L. Lam, “Passive Q-switching of a diode-pumped Nd:YAG laser with a GaAs output coupler,” Opt. Commun. 165(4-6), 245–249 (1999).
[CrossRef]

Appl. Opt. (5)

Appl. Phys. B (1)

A. Li, S. C. Liu, K. W. Su, Y. L. Liao, S. C. Huang, Y. F. Chen, and K. F. Huang, “InGaAsP quantum-wells saturable absorber for diode-pumped passively Q -switched 1.3-μm lasers,” Appl. Phys. B 84(3), 429–431 (2006).
[CrossRef]

Appl. Phys. Lett. (1)

Y. K. Kuo, M. Birnbaum, and W. Chen, “Ho:YLiF4 saturable absorber Q-switch for the 2-μm Tm, Cr:Y3Al5O12 laser,” Appl. Phys. Lett. 65(24), 3060–3062 (1994).
[CrossRef]

Opt. Commun. (1)

J. Gu, F. Zhou, W. Xie, S. C. Tam, and Y. L. Lam, “Passive Q-switching of a diode-pumped Nd:YAG laser with a GaAs output coupler,” Opt. Commun. 165(4-6), 245–249 (1999).
[CrossRef]

Opt. Express (2)

Opt. Lett. (6)

Other (1)

B. Temel, T. ÖzgÜr, K. Hamit, K. Adnan, S. Alphan, and G. Murat, “Skin Tissue Ablation by Thulium (Tm:YAP) laser at 1980nm,” in CLEO/Europe and EQEC 2009 Conference Digest(Optical Society of America, 2009), p. CL_P11.

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Figures (8)

Fig. 1
Fig. 1

Schematic diagram of the experimental configuration.

Fig. 2
Fig. 2

The dependence of beam size on pump power and L.

Fig. 3
Fig. 3

Average output power and pulse energy as a function of pump power for different L.

Fig. 4
Fig. 4

Passively Q-switched PRF as a function of pump power for different L.

Fig. 5
Fig. 5

Pulse width as a function of pump power for different L.

Fig. 6
Fig. 6

(a) Typical oscilloscope trace of expanded shape of a single pulse and (b) a train of output pulses at the pump power of 35 W (L = 15 mm). (c) An unstable train of pulses at the pump power of 25 W and (d) 35 W (L = 31 mm).

Fig. 7
Fig. 7

Tm:YAP laser spectrum for CW and passively Q-switched output.

Fig. 8
Fig. 8

Integrated intensity profile of the Q-switched laser beam at the maximum pump power. Solid curve is an Integrated Gaussian fit to the experimental data (Square points). The beam radius is as a function of the distance from focusing lens at the maximum pump power level. The experimental data (Dot points) is fitting a curve (Dash line) of a standard Gaussian beam propagation expression.

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