Abstract

Using an all passive approach, synchronized Q-switching of two Nd:YAG lasers, at 946 nm and 1064 nm, is reported. Two laser crystals are used to avoid gain competition, and stable operation is reported for the first time. The pulse trains are synchronized over a wide range of pump powers and a relative timing jitter of 36 ns is achieved. A minimum delay of 64 ns is observed between the two laser pulses, and by making the 946 nm pulse relatively long, a 79% temporal overlap is obtained when compared to the zero-delay scenario.

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References

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    [CrossRef] [PubMed]
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    [CrossRef]
  4. J. Janousek, P. Tidemand-Lichtenberg, J. L. Mortensen, and P. Buchhave, “Investigation of passively synchronized dual-wavelength Q-switched lasers based on V:YAG saturable absorber,” Opt. Commun. 265(1), 277–282 (2006).
    [CrossRef]
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    [CrossRef]
  6. L. Zhang, Z. Wei, B. Feng, D. Li, and Z. Zhang, “Simultaneous dual-wavelength Q-switched Nd:YAG laser operating at 1.06 μm and 946 nm,” Opt. Commun. 264(1), 51–54 (2006).
    [CrossRef]
  7. V. Kh. Bagdasarov, N. N. Denisov, A. A. Malyutin, and I. A. Chigaev, “Pulse synchronization in passively Q-switched lasers emitting at 1.053 and 1.064 μm,” Quantum Electron. 39(10), 887–890 (2009).
    [CrossRef]
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    [CrossRef]
  9. M. Chi, O. B. Jensen, J. Holm, C. Pedersen, P. E. Andersen, G. Erbert, B. Sumpf, and P. M. Petersen, “Tunable high-power narrow-linewidth semiconductor laser based on an external-cavity tapered amplifier,” Opt. Express 13(26), 10589–10596 (2005).
    [CrossRef] [PubMed]
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  12. Q. Li, S. Wang, S. Du, Y. Shi, J. Xing, D. Zhang, B. Feng, Z. Zhang, and S. Zhang, “Self-Q-switched and mode-locked 946 nm Cr,Nd:YAG laser,” Opt. Commun. 281(8), 2184–2188 (2008).
    [CrossRef]

2010 (1)

H. P. H. Cheng, O. B. Jensen, P. Tidemand-Lichtenberg, P. E. Andersen, P. M. Petersen, B. Sumpf, G. Erbert, and C. Pedersen, “Efficient quasi-three-level Nd:YAG laser at 946 nm pumped by a tunable external cavity tapered diode laser,” Opt. Commun. 283(23), 4717–4721 (2010).
[CrossRef]

2009 (1)

V. Kh. Bagdasarov, N. N. Denisov, A. A. Malyutin, and I. A. Chigaev, “Pulse synchronization in passively Q-switched lasers emitting at 1.053 and 1.064 μm,” Quantum Electron. 39(10), 887–890 (2009).
[CrossRef]

2008 (2)

E. Herault, M. Lelek, F. Balembois, and P. Georges, “Pulsed blue laser at 491 nm by nonlinear cavity dumping,” Opt. Express 16(24), 19419–19426 (2008).
[CrossRef] [PubMed]

Q. Li, S. Wang, S. Du, Y. Shi, J. Xing, D. Zhang, B. Feng, Z. Zhang, and S. Zhang, “Self-Q-switched and mode-locked 946 nm Cr,Nd:YAG laser,” Opt. Commun. 281(8), 2184–2188 (2008).
[CrossRef]

2006 (2)

J. Janousek, P. Tidemand-Lichtenberg, J. L. Mortensen, and P. Buchhave, “Investigation of passively synchronized dual-wavelength Q-switched lasers based on V:YAG saturable absorber,” Opt. Commun. 265(1), 277–282 (2006).
[CrossRef]

L. Zhang, Z. Wei, B. Feng, D. Li, and Z. Zhang, “Simultaneous dual-wavelength Q-switched Nd:YAG laser operating at 1.06 μm and 946 nm,” Opt. Commun. 264(1), 51–54 (2006).
[CrossRef]

2005 (1)

2004 (2)

P. Tidemand-Lichtenberg, J. Janousek, R. Melich, J. L. Mortensen, and P. Buchhave, “Synchronization of 1064 and 1342 nm pulses using passive saturable absorbers,” Opt. Commun. 241(4-6), 487–492 (2004).
[CrossRef]

X. Zhang, A. Brenier, J. Wang, and H. Zhang, “Absorption cross-sections of Cr4+:YAG at 946 and 914 nm,” Opt. Mater. 26(3), 293–296 (2004).
[CrossRef]

1998 (1)

1995 (1)

1988 (1)

Andersen, P. E.

H. P. H. Cheng, O. B. Jensen, P. Tidemand-Lichtenberg, P. E. Andersen, P. M. Petersen, B. Sumpf, G. Erbert, and C. Pedersen, “Efficient quasi-three-level Nd:YAG laser at 946 nm pumped by a tunable external cavity tapered diode laser,” Opt. Commun. 283(23), 4717–4721 (2010).
[CrossRef]

M. Chi, O. B. Jensen, J. Holm, C. Pedersen, P. E. Andersen, G. Erbert, B. Sumpf, and P. M. Petersen, “Tunable high-power narrow-linewidth semiconductor laser based on an external-cavity tapered amplifier,” Opt. Express 13(26), 10589–10596 (2005).
[CrossRef] [PubMed]

Bagdasarov, V. Kh.

V. Kh. Bagdasarov, N. N. Denisov, A. A. Malyutin, and I. A. Chigaev, “Pulse synchronization in passively Q-switched lasers emitting at 1.053 and 1.064 μm,” Quantum Electron. 39(10), 887–890 (2009).
[CrossRef]

Balembois, F.

Brenier, A.

X. Zhang, A. Brenier, J. Wang, and H. Zhang, “Absorption cross-sections of Cr4+:YAG at 946 and 914 nm,” Opt. Mater. 26(3), 293–296 (2004).
[CrossRef]

Buchhave, P.

J. Janousek, P. Tidemand-Lichtenberg, J. L. Mortensen, and P. Buchhave, “Investigation of passively synchronized dual-wavelength Q-switched lasers based on V:YAG saturable absorber,” Opt. Commun. 265(1), 277–282 (2006).
[CrossRef]

P. Tidemand-Lichtenberg, J. Janousek, R. Melich, J. L. Mortensen, and P. Buchhave, “Synchronization of 1064 and 1342 nm pulses using passive saturable absorbers,” Opt. Commun. 241(4-6), 487–492 (2004).
[CrossRef]

Cheng, H. P. H.

H. P. H. Cheng, O. B. Jensen, P. Tidemand-Lichtenberg, P. E. Andersen, P. M. Petersen, B. Sumpf, G. Erbert, and C. Pedersen, “Efficient quasi-three-level Nd:YAG laser at 946 nm pumped by a tunable external cavity tapered diode laser,” Opt. Commun. 283(23), 4717–4721 (2010).
[CrossRef]

Chi, M.

Chigaev, I. A.

V. Kh. Bagdasarov, N. N. Denisov, A. A. Malyutin, and I. A. Chigaev, “Pulse synchronization in passively Q-switched lasers emitting at 1.053 and 1.064 μm,” Quantum Electron. 39(10), 887–890 (2009).
[CrossRef]

Dao, P. D.

Denisov, N. N.

V. Kh. Bagdasarov, N. N. Denisov, A. A. Malyutin, and I. A. Chigaev, “Pulse synchronization in passively Q-switched lasers emitting at 1.053 and 1.064 μm,” Quantum Electron. 39(10), 887–890 (2009).
[CrossRef]

Du, S.

Q. Li, S. Wang, S. Du, Y. Shi, J. Xing, D. Zhang, B. Feng, Z. Zhang, and S. Zhang, “Self-Q-switched and mode-locked 946 nm Cr,Nd:YAG laser,” Opt. Commun. 281(8), 2184–2188 (2008).
[CrossRef]

Ebrahimzadeh, M.

Erbert, G.

H. P. H. Cheng, O. B. Jensen, P. Tidemand-Lichtenberg, P. E. Andersen, P. M. Petersen, B. Sumpf, G. Erbert, and C. Pedersen, “Efficient quasi-three-level Nd:YAG laser at 946 nm pumped by a tunable external cavity tapered diode laser,” Opt. Commun. 283(23), 4717–4721 (2010).
[CrossRef]

M. Chi, O. B. Jensen, J. Holm, C. Pedersen, P. E. Andersen, G. Erbert, B. Sumpf, and P. M. Petersen, “Tunable high-power narrow-linewidth semiconductor laser based on an external-cavity tapered amplifier,” Opt. Express 13(26), 10589–10596 (2005).
[CrossRef] [PubMed]

Farley, R. W.

Feng, B.

Q. Li, S. Wang, S. Du, Y. Shi, J. Xing, D. Zhang, B. Feng, Z. Zhang, and S. Zhang, “Self-Q-switched and mode-locked 946 nm Cr,Nd:YAG laser,” Opt. Commun. 281(8), 2184–2188 (2008).
[CrossRef]

L. Zhang, Z. Wei, B. Feng, D. Li, and Z. Zhang, “Simultaneous dual-wavelength Q-switched Nd:YAG laser operating at 1.06 μm and 946 nm,” Opt. Commun. 264(1), 51–54 (2006).
[CrossRef]

Georges, P.

Herault, E.

Holm, J.

Janousek, J.

J. Janousek, P. Tidemand-Lichtenberg, J. L. Mortensen, and P. Buchhave, “Investigation of passively synchronized dual-wavelength Q-switched lasers based on V:YAG saturable absorber,” Opt. Commun. 265(1), 277–282 (2006).
[CrossRef]

P. Tidemand-Lichtenberg, J. Janousek, R. Melich, J. L. Mortensen, and P. Buchhave, “Synchronization of 1064 and 1342 nm pulses using passive saturable absorbers,” Opt. Commun. 241(4-6), 487–492 (2004).
[CrossRef]

Jensen, O. B.

H. P. H. Cheng, O. B. Jensen, P. Tidemand-Lichtenberg, P. E. Andersen, P. M. Petersen, B. Sumpf, G. Erbert, and C. Pedersen, “Efficient quasi-three-level Nd:YAG laser at 946 nm pumped by a tunable external cavity tapered diode laser,” Opt. Commun. 283(23), 4717–4721 (2010).
[CrossRef]

M. Chi, O. B. Jensen, J. Holm, C. Pedersen, P. E. Andersen, G. Erbert, B. Sumpf, and P. M. Petersen, “Tunable high-power narrow-linewidth semiconductor laser based on an external-cavity tapered amplifier,” Opt. Express 13(26), 10589–10596 (2005).
[CrossRef] [PubMed]

Lelek, M.

Li, D.

L. Zhang, Z. Wei, B. Feng, D. Li, and Z. Zhang, “Simultaneous dual-wavelength Q-switched Nd:YAG laser operating at 1.06 μm and 946 nm,” Opt. Commun. 264(1), 51–54 (2006).
[CrossRef]

Li, Q.

Q. Li, S. Wang, S. Du, Y. Shi, J. Xing, D. Zhang, B. Feng, Z. Zhang, and S. Zhang, “Self-Q-switched and mode-locked 946 nm Cr,Nd:YAG laser,” Opt. Commun. 281(8), 2184–2188 (2008).
[CrossRef]

Lindsay, I. D.

Malyutin, A. A.

V. Kh. Bagdasarov, N. N. Denisov, A. A. Malyutin, and I. A. Chigaev, “Pulse synchronization in passively Q-switched lasers emitting at 1.053 and 1.064 μm,” Quantum Electron. 39(10), 887–890 (2009).
[CrossRef]

Melich, R.

P. Tidemand-Lichtenberg, J. Janousek, R. Melich, J. L. Mortensen, and P. Buchhave, “Synchronization of 1064 and 1342 nm pulses using passive saturable absorbers,” Opt. Commun. 241(4-6), 487–492 (2004).
[CrossRef]

Mortensen, J. L.

J. Janousek, P. Tidemand-Lichtenberg, J. L. Mortensen, and P. Buchhave, “Investigation of passively synchronized dual-wavelength Q-switched lasers based on V:YAG saturable absorber,” Opt. Commun. 265(1), 277–282 (2006).
[CrossRef]

P. Tidemand-Lichtenberg, J. Janousek, R. Melich, J. L. Mortensen, and P. Buchhave, “Synchronization of 1064 and 1342 nm pulses using passive saturable absorbers,” Opt. Commun. 241(4-6), 487–492 (2004).
[CrossRef]

Pedersen, C.

H. P. H. Cheng, O. B. Jensen, P. Tidemand-Lichtenberg, P. E. Andersen, P. M. Petersen, B. Sumpf, G. Erbert, and C. Pedersen, “Efficient quasi-three-level Nd:YAG laser at 946 nm pumped by a tunable external cavity tapered diode laser,” Opt. Commun. 283(23), 4717–4721 (2010).
[CrossRef]

M. Chi, O. B. Jensen, J. Holm, C. Pedersen, P. E. Andersen, G. Erbert, B. Sumpf, and P. M. Petersen, “Tunable high-power narrow-linewidth semiconductor laser based on an external-cavity tapered amplifier,” Opt. Express 13(26), 10589–10596 (2005).
[CrossRef] [PubMed]

Petersen, P. M.

H. P. H. Cheng, O. B. Jensen, P. Tidemand-Lichtenberg, P. E. Andersen, P. M. Petersen, B. Sumpf, G. Erbert, and C. Pedersen, “Efficient quasi-three-level Nd:YAG laser at 946 nm pumped by a tunable external cavity tapered diode laser,” Opt. Commun. 283(23), 4717–4721 (2010).
[CrossRef]

M. Chi, O. B. Jensen, J. Holm, C. Pedersen, P. E. Andersen, G. Erbert, B. Sumpf, and P. M. Petersen, “Tunable high-power narrow-linewidth semiconductor laser based on an external-cavity tapered amplifier,” Opt. Express 13(26), 10589–10596 (2005).
[CrossRef] [PubMed]

Risk, W. P.

Shi, Y.

Q. Li, S. Wang, S. Du, Y. Shi, J. Xing, D. Zhang, B. Feng, Z. Zhang, and S. Zhang, “Self-Q-switched and mode-locked 946 nm Cr,Nd:YAG laser,” Opt. Commun. 281(8), 2184–2188 (2008).
[CrossRef]

Sumpf, B.

H. P. H. Cheng, O. B. Jensen, P. Tidemand-Lichtenberg, P. E. Andersen, P. M. Petersen, B. Sumpf, G. Erbert, and C. Pedersen, “Efficient quasi-three-level Nd:YAG laser at 946 nm pumped by a tunable external cavity tapered diode laser,” Opt. Commun. 283(23), 4717–4721 (2010).
[CrossRef]

M. Chi, O. B. Jensen, J. Holm, C. Pedersen, P. E. Andersen, G. Erbert, B. Sumpf, and P. M. Petersen, “Tunable high-power narrow-linewidth semiconductor laser based on an external-cavity tapered amplifier,” Opt. Express 13(26), 10589–10596 (2005).
[CrossRef] [PubMed]

Tidemand-Lichtenberg, P.

H. P. H. Cheng, O. B. Jensen, P. Tidemand-Lichtenberg, P. E. Andersen, P. M. Petersen, B. Sumpf, G. Erbert, and C. Pedersen, “Efficient quasi-three-level Nd:YAG laser at 946 nm pumped by a tunable external cavity tapered diode laser,” Opt. Commun. 283(23), 4717–4721 (2010).
[CrossRef]

J. Janousek, P. Tidemand-Lichtenberg, J. L. Mortensen, and P. Buchhave, “Investigation of passively synchronized dual-wavelength Q-switched lasers based on V:YAG saturable absorber,” Opt. Commun. 265(1), 277–282 (2006).
[CrossRef]

P. Tidemand-Lichtenberg, J. Janousek, R. Melich, J. L. Mortensen, and P. Buchhave, “Synchronization of 1064 and 1342 nm pulses using passive saturable absorbers,” Opt. Commun. 241(4-6), 487–492 (2004).
[CrossRef]

Wang, J.

X. Zhang, A. Brenier, J. Wang, and H. Zhang, “Absorption cross-sections of Cr4+:YAG at 946 and 914 nm,” Opt. Mater. 26(3), 293–296 (2004).
[CrossRef]

Wang, S.

Q. Li, S. Wang, S. Du, Y. Shi, J. Xing, D. Zhang, B. Feng, Z. Zhang, and S. Zhang, “Self-Q-switched and mode-locked 946 nm Cr,Nd:YAG laser,” Opt. Commun. 281(8), 2184–2188 (2008).
[CrossRef]

Wei, Z.

L. Zhang, Z. Wei, B. Feng, D. Li, and Z. Zhang, “Simultaneous dual-wavelength Q-switched Nd:YAG laser operating at 1.06 μm and 946 nm,” Opt. Commun. 264(1), 51–54 (2006).
[CrossRef]

Xing, J.

Q. Li, S. Wang, S. Du, Y. Shi, J. Xing, D. Zhang, B. Feng, Z. Zhang, and S. Zhang, “Self-Q-switched and mode-locked 946 nm Cr,Nd:YAG laser,” Opt. Commun. 281(8), 2184–2188 (2008).
[CrossRef]

Zhang, D.

Q. Li, S. Wang, S. Du, Y. Shi, J. Xing, D. Zhang, B. Feng, Z. Zhang, and S. Zhang, “Self-Q-switched and mode-locked 946 nm Cr,Nd:YAG laser,” Opt. Commun. 281(8), 2184–2188 (2008).
[CrossRef]

Zhang, H.

X. Zhang, A. Brenier, J. Wang, and H. Zhang, “Absorption cross-sections of Cr4+:YAG at 946 and 914 nm,” Opt. Mater. 26(3), 293–296 (2004).
[CrossRef]

Zhang, L.

L. Zhang, Z. Wei, B. Feng, D. Li, and Z. Zhang, “Simultaneous dual-wavelength Q-switched Nd:YAG laser operating at 1.06 μm and 946 nm,” Opt. Commun. 264(1), 51–54 (2006).
[CrossRef]

Zhang, S.

Q. Li, S. Wang, S. Du, Y. Shi, J. Xing, D. Zhang, B. Feng, Z. Zhang, and S. Zhang, “Self-Q-switched and mode-locked 946 nm Cr,Nd:YAG laser,” Opt. Commun. 281(8), 2184–2188 (2008).
[CrossRef]

Zhang, X.

X. Zhang, A. Brenier, J. Wang, and H. Zhang, “Absorption cross-sections of Cr4+:YAG at 946 and 914 nm,” Opt. Mater. 26(3), 293–296 (2004).
[CrossRef]

Zhang, Z.

Q. Li, S. Wang, S. Du, Y. Shi, J. Xing, D. Zhang, B. Feng, Z. Zhang, and S. Zhang, “Self-Q-switched and mode-locked 946 nm Cr,Nd:YAG laser,” Opt. Commun. 281(8), 2184–2188 (2008).
[CrossRef]

L. Zhang, Z. Wei, B. Feng, D. Li, and Z. Zhang, “Simultaneous dual-wavelength Q-switched Nd:YAG laser operating at 1.06 μm and 946 nm,” Opt. Commun. 264(1), 51–54 (2006).
[CrossRef]

Appl. Opt. (2)

J. Opt. Soc. Am. B (1)

Opt. Commun. (5)

H. P. H. Cheng, O. B. Jensen, P. Tidemand-Lichtenberg, P. E. Andersen, P. M. Petersen, B. Sumpf, G. Erbert, and C. Pedersen, “Efficient quasi-three-level Nd:YAG laser at 946 nm pumped by a tunable external cavity tapered diode laser,” Opt. Commun. 283(23), 4717–4721 (2010).
[CrossRef]

Q. Li, S. Wang, S. Du, Y. Shi, J. Xing, D. Zhang, B. Feng, Z. Zhang, and S. Zhang, “Self-Q-switched and mode-locked 946 nm Cr,Nd:YAG laser,” Opt. Commun. 281(8), 2184–2188 (2008).
[CrossRef]

P. Tidemand-Lichtenberg, J. Janousek, R. Melich, J. L. Mortensen, and P. Buchhave, “Synchronization of 1064 and 1342 nm pulses using passive saturable absorbers,” Opt. Commun. 241(4-6), 487–492 (2004).
[CrossRef]

J. Janousek, P. Tidemand-Lichtenberg, J. L. Mortensen, and P. Buchhave, “Investigation of passively synchronized dual-wavelength Q-switched lasers based on V:YAG saturable absorber,” Opt. Commun. 265(1), 277–282 (2006).
[CrossRef]

L. Zhang, Z. Wei, B. Feng, D. Li, and Z. Zhang, “Simultaneous dual-wavelength Q-switched Nd:YAG laser operating at 1.06 μm and 946 nm,” Opt. Commun. 264(1), 51–54 (2006).
[CrossRef]

Opt. Express (2)

Opt. Mater. (1)

X. Zhang, A. Brenier, J. Wang, and H. Zhang, “Absorption cross-sections of Cr4+:YAG at 946 and 914 nm,” Opt. Mater. 26(3), 293–296 (2004).
[CrossRef]

Quantum Electron. (1)

V. Kh. Bagdasarov, N. N. Denisov, A. A. Malyutin, and I. A. Chigaev, “Pulse synchronization in passively Q-switched lasers emitting at 1.053 and 1.064 μm,” Quantum Electron. 39(10), 887–890 (2009).
[CrossRef]

Supplementary Material (1)

» Media 1: MOV (2118 KB)     

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Figures (5)

Fig. 1
Fig. 1

(Color online) Experimental setup for synchronized Q-switching. Nd:YAG1 and Nd:YAG2 are the laser crystals for 946 nm and 1064 nm, respectively. SA is the saturable absorber that is shared between the two lasers.

Fig. 2
Fig. 2

Repetition rates of the synchronized system and of the respective free running lasers at 946 nm and 1064 nm.

Fig. 3
Fig. 3

Average power, Q-switch envelope width (FWHM), and pulse energy of the synchronized lasers.

Fig. 4
Fig. 4

(Color online) (a) Relative delay between the two laser pulses as a function of 1064 nm laser pump power, with the 946 nm laser pump power held at 1.6 W. Qualitative plots of the pulse build-up and cavity losses are shown for (b) regime 1, (c) regime 3, and (d) regime 2 as functions of time. Dashed lines in (b)-(d) indicate when the lasers are below threshold.

Fig. 5
Fig. 5

(Color online) Oscilloscope traces of the two pulsed signals, showing good temporal overlap – black trace shows a 1064 nm pulse, purple trace shows a 946 nm pulse. The overlap corresponding to the product of the two pulses was 79% with respect to the best case scenario where no delay would be present. Inset shows a single frame in the uploaded video (Media 1) – upper trace shows a 1064 nm pulse, lower trace shows a 946 nm pulse.

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