Abstract

The Q-Switched Mode Locking (QML) regime provides the generation of relatively high peak power picosecond pulses train with energies of a few μJ each in a simple resonator. The fully modulated efficient QML regime was demonstrated in the diode pumped Nd:YVO4 laser. The acousto-optic cell playing a double role of Q-switch and Mode Locker was located near flat output coupler. The two folding mirrors were mounted on the translation stages for matching the resonance frequency of the cavity to the radio frequency of acousto-optic modulator. The QML pulses with envelope durations of 100-150 ns and near 100% modulation depth were observed for wide range of pump powers and repetition rates. Up to 3 W of output average power, 100 μJ of the envelope energy, having approximately 5-8 mode locked pulses were achieved.

© 2006 Optical Society of America

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  1. J. Limpert, A. Liem, T. Gabler, H. Zellmer, A. Tünnermann, S. Unger, S. Jetschke, and H. R. Muller, "High average-power picosecond Yb-doped fiber amplifier," Opt. Lett. 26, 1849-1852 (2001).
    [CrossRef]
  2. J. Limpert, N. Deguil-Robin, I. Manek-Hönninger, F. Salin, T. Schreiber, A. Liem, F. Röser, H. Zellmer, A. Tünnermann, A. Courjaoud, C. Hönninger, and E. Mottay, "High-power picosecond fiber amplifier based on nonlinear spectral compression," Opt. Lett. 30, 714-716 (2005).
    [CrossRef] [PubMed]
  3. A. Beyertt, D. Nickel, and A. Giesen, "Femtosecond thin-disk Yb:KYW regenerative amplifier," Appl. Phys. B 80, 655-660 (2005).
    [CrossRef]
  4. M. Siebold, M. Hornung, J. Hein, G. Paunescu, R. Sauerbrey, T. Bergmann, G. Hollemann, "A high-average-power diode-pumped Nd:YVO4 regenerative laser amplifier for picosecond-pulses," Appl. Phys. B. 78, 287-291 (2004).
    [CrossRef]
  5. T. M. Jeong, C. M. Chung, H. S. Chung, H. S. Kim, C. H. Nam, and C. J. Kim, "Generation of passively Q-switched mode-locked pulse from a laser diode pumped Nd:YAG laser," J. Korean Phys. Soc. 35, 290-293 (1999).Q1
  6. Y. F. Chen, and S. W. Tsai, "Simultaneous Q-switching and mode-locking in a diode-pumped Nd:YVO4-Cr4+:YAG Laser," IEEE J. Quantum Electron. 37, 580-586 (2001).
    [CrossRef]
  7. A. Agnesi, A. Guandalini, G. C. Reali, J. K. Jabczyński, K. Kopczyński, and Z. Mierczyk, "Diode-pumped Nd:YVO4 laser at 1.34 μm Q-switched and mode-locked by a V3+:YAG saturable absorber," Opt. Commun. 194, 429-433 (2001).
    [CrossRef]
  8. D. Y. Shen, D. Y. Tang, and K. Ueda, "Continuous wave and Q-Switched mode-locking of a Nd:YVO4 laser with a single crystal GaAs wafer," Jpn. J. Appl. Phys. 42, 1224-1227 (2002).
    [CrossRef]
  9. P. K. Datta, S. Mukhopadhyay, S. K. Das, L. Tartara, A. Agnesi, and V. Degiorgio, "Enhancement of stability and efficiency of a nonlinear mirror mode-locked Nd:YVO4 oscillator by an active Q-switch," Opt. Express,  12, 4041-4046 (2004).
    [CrossRef] [PubMed]
  10. V. Kubecek, J. Biegert, J-C. Diels, and M. R. Kokta, "Practical source of 50 ps pulses using flash-lamp pumped Nd:YAG laser and passive all solid state pulse control," Opt. Commun. 174, 317-322 (2000).
    [CrossRef]
  11. G. J. Valentine, D. Burns, and A. I. Ferguson, "High power, passively mode locked quasi-cw Nd:YLF laser with feedback for Q-switch and spike suppression," in OSA Trends and Photonics (TOPS), 73 CLEO Technical Digest, Washington D. C. 2002), 150-151.Q2

2005

2004

M. Siebold, M. Hornung, J. Hein, G. Paunescu, R. Sauerbrey, T. Bergmann, G. Hollemann, "A high-average-power diode-pumped Nd:YVO4 regenerative laser amplifier for picosecond-pulses," Appl. Phys. B. 78, 287-291 (2004).
[CrossRef]

P. K. Datta, S. Mukhopadhyay, S. K. Das, L. Tartara, A. Agnesi, and V. Degiorgio, "Enhancement of stability and efficiency of a nonlinear mirror mode-locked Nd:YVO4 oscillator by an active Q-switch," Opt. Express,  12, 4041-4046 (2004).
[CrossRef] [PubMed]

2002

G. J. Valentine, D. Burns, and A. I. Ferguson, "High power, passively mode locked quasi-cw Nd:YLF laser with feedback for Q-switch and spike suppression," in OSA Trends and Photonics (TOPS), 73 CLEO Technical Digest, Washington D. C. 2002), 150-151.Q2

D. Y. Shen, D. Y. Tang, and K. Ueda, "Continuous wave and Q-Switched mode-locking of a Nd:YVO4 laser with a single crystal GaAs wafer," Jpn. J. Appl. Phys. 42, 1224-1227 (2002).
[CrossRef]

2001

J. Limpert, A. Liem, T. Gabler, H. Zellmer, A. Tünnermann, S. Unger, S. Jetschke, and H. R. Muller, "High average-power picosecond Yb-doped fiber amplifier," Opt. Lett. 26, 1849-1852 (2001).
[CrossRef]

Y. F. Chen, and S. W. Tsai, "Simultaneous Q-switching and mode-locking in a diode-pumped Nd:YVO4-Cr4+:YAG Laser," IEEE J. Quantum Electron. 37, 580-586 (2001).
[CrossRef]

A. Agnesi, A. Guandalini, G. C. Reali, J. K. Jabczyński, K. Kopczyński, and Z. Mierczyk, "Diode-pumped Nd:YVO4 laser at 1.34 μm Q-switched and mode-locked by a V3+:YAG saturable absorber," Opt. Commun. 194, 429-433 (2001).
[CrossRef]

2000

V. Kubecek, J. Biegert, J-C. Diels, and M. R. Kokta, "Practical source of 50 ps pulses using flash-lamp pumped Nd:YAG laser and passive all solid state pulse control," Opt. Commun. 174, 317-322 (2000).
[CrossRef]

1999

T. M. Jeong, C. M. Chung, H. S. Chung, H. S. Kim, C. H. Nam, and C. J. Kim, "Generation of passively Q-switched mode-locked pulse from a laser diode pumped Nd:YAG laser," J. Korean Phys. Soc. 35, 290-293 (1999).Q1

Agnesi, A.

P. K. Datta, S. Mukhopadhyay, S. K. Das, L. Tartara, A. Agnesi, and V. Degiorgio, "Enhancement of stability and efficiency of a nonlinear mirror mode-locked Nd:YVO4 oscillator by an active Q-switch," Opt. Express,  12, 4041-4046 (2004).
[CrossRef] [PubMed]

A. Agnesi, A. Guandalini, G. C. Reali, J. K. Jabczyński, K. Kopczyński, and Z. Mierczyk, "Diode-pumped Nd:YVO4 laser at 1.34 μm Q-switched and mode-locked by a V3+:YAG saturable absorber," Opt. Commun. 194, 429-433 (2001).
[CrossRef]

Bergmann, T.

M. Siebold, M. Hornung, J. Hein, G. Paunescu, R. Sauerbrey, T. Bergmann, G. Hollemann, "A high-average-power diode-pumped Nd:YVO4 regenerative laser amplifier for picosecond-pulses," Appl. Phys. B. 78, 287-291 (2004).
[CrossRef]

Beyertt, A.

A. Beyertt, D. Nickel, and A. Giesen, "Femtosecond thin-disk Yb:KYW regenerative amplifier," Appl. Phys. B 80, 655-660 (2005).
[CrossRef]

Biegert, J.

V. Kubecek, J. Biegert, J-C. Diels, and M. R. Kokta, "Practical source of 50 ps pulses using flash-lamp pumped Nd:YAG laser and passive all solid state pulse control," Opt. Commun. 174, 317-322 (2000).
[CrossRef]

Burns, D.

G. J. Valentine, D. Burns, and A. I. Ferguson, "High power, passively mode locked quasi-cw Nd:YLF laser with feedback for Q-switch and spike suppression," in OSA Trends and Photonics (TOPS), 73 CLEO Technical Digest, Washington D. C. 2002), 150-151.Q2

Chen, Y. F.

Y. F. Chen, and S. W. Tsai, "Simultaneous Q-switching and mode-locking in a diode-pumped Nd:YVO4-Cr4+:YAG Laser," IEEE J. Quantum Electron. 37, 580-586 (2001).
[CrossRef]

Chung, C. M.

T. M. Jeong, C. M. Chung, H. S. Chung, H. S. Kim, C. H. Nam, and C. J. Kim, "Generation of passively Q-switched mode-locked pulse from a laser diode pumped Nd:YAG laser," J. Korean Phys. Soc. 35, 290-293 (1999).Q1

Chung, H. S.

T. M. Jeong, C. M. Chung, H. S. Chung, H. S. Kim, C. H. Nam, and C. J. Kim, "Generation of passively Q-switched mode-locked pulse from a laser diode pumped Nd:YAG laser," J. Korean Phys. Soc. 35, 290-293 (1999).Q1

Courjaoud, A.

Das, S. K.

Datta, P. K.

Degiorgio, V.

Deguil-Robin, N.

Diels, J-C.

V. Kubecek, J. Biegert, J-C. Diels, and M. R. Kokta, "Practical source of 50 ps pulses using flash-lamp pumped Nd:YAG laser and passive all solid state pulse control," Opt. Commun. 174, 317-322 (2000).
[CrossRef]

Ferguson, A. I.

G. J. Valentine, D. Burns, and A. I. Ferguson, "High power, passively mode locked quasi-cw Nd:YLF laser with feedback for Q-switch and spike suppression," in OSA Trends and Photonics (TOPS), 73 CLEO Technical Digest, Washington D. C. 2002), 150-151.Q2

Gabler, T.

Giesen, A.

A. Beyertt, D. Nickel, and A. Giesen, "Femtosecond thin-disk Yb:KYW regenerative amplifier," Appl. Phys. B 80, 655-660 (2005).
[CrossRef]

Guandalini, A.

A. Agnesi, A. Guandalini, G. C. Reali, J. K. Jabczyński, K. Kopczyński, and Z. Mierczyk, "Diode-pumped Nd:YVO4 laser at 1.34 μm Q-switched and mode-locked by a V3+:YAG saturable absorber," Opt. Commun. 194, 429-433 (2001).
[CrossRef]

Hein, J.

M. Siebold, M. Hornung, J. Hein, G. Paunescu, R. Sauerbrey, T. Bergmann, G. Hollemann, "A high-average-power diode-pumped Nd:YVO4 regenerative laser amplifier for picosecond-pulses," Appl. Phys. B. 78, 287-291 (2004).
[CrossRef]

Hollemann, G.

M. Siebold, M. Hornung, J. Hein, G. Paunescu, R. Sauerbrey, T. Bergmann, G. Hollemann, "A high-average-power diode-pumped Nd:YVO4 regenerative laser amplifier for picosecond-pulses," Appl. Phys. B. 78, 287-291 (2004).
[CrossRef]

Hönninger, C.

Hornung, M.

M. Siebold, M. Hornung, J. Hein, G. Paunescu, R. Sauerbrey, T. Bergmann, G. Hollemann, "A high-average-power diode-pumped Nd:YVO4 regenerative laser amplifier for picosecond-pulses," Appl. Phys. B. 78, 287-291 (2004).
[CrossRef]

Jabczynski, J. K.

A. Agnesi, A. Guandalini, G. C. Reali, J. K. Jabczyński, K. Kopczyński, and Z. Mierczyk, "Diode-pumped Nd:YVO4 laser at 1.34 μm Q-switched and mode-locked by a V3+:YAG saturable absorber," Opt. Commun. 194, 429-433 (2001).
[CrossRef]

Jeong, T. M.

T. M. Jeong, C. M. Chung, H. S. Chung, H. S. Kim, C. H. Nam, and C. J. Kim, "Generation of passively Q-switched mode-locked pulse from a laser diode pumped Nd:YAG laser," J. Korean Phys. Soc. 35, 290-293 (1999).Q1

Jetschke, S.

Kim, C. J.

T. M. Jeong, C. M. Chung, H. S. Chung, H. S. Kim, C. H. Nam, and C. J. Kim, "Generation of passively Q-switched mode-locked pulse from a laser diode pumped Nd:YAG laser," J. Korean Phys. Soc. 35, 290-293 (1999).Q1

Kim, H. S.

T. M. Jeong, C. M. Chung, H. S. Chung, H. S. Kim, C. H. Nam, and C. J. Kim, "Generation of passively Q-switched mode-locked pulse from a laser diode pumped Nd:YAG laser," J. Korean Phys. Soc. 35, 290-293 (1999).Q1

Kokta, M. R.

V. Kubecek, J. Biegert, J-C. Diels, and M. R. Kokta, "Practical source of 50 ps pulses using flash-lamp pumped Nd:YAG laser and passive all solid state pulse control," Opt. Commun. 174, 317-322 (2000).
[CrossRef]

Kopczynski, K.

A. Agnesi, A. Guandalini, G. C. Reali, J. K. Jabczyński, K. Kopczyński, and Z. Mierczyk, "Diode-pumped Nd:YVO4 laser at 1.34 μm Q-switched and mode-locked by a V3+:YAG saturable absorber," Opt. Commun. 194, 429-433 (2001).
[CrossRef]

Kubecek, V.

V. Kubecek, J. Biegert, J-C. Diels, and M. R. Kokta, "Practical source of 50 ps pulses using flash-lamp pumped Nd:YAG laser and passive all solid state pulse control," Opt. Commun. 174, 317-322 (2000).
[CrossRef]

Liem, A.

Limpert, J.

Manek-Hönninger, I.

Mierczyk, Z.

A. Agnesi, A. Guandalini, G. C. Reali, J. K. Jabczyński, K. Kopczyński, and Z. Mierczyk, "Diode-pumped Nd:YVO4 laser at 1.34 μm Q-switched and mode-locked by a V3+:YAG saturable absorber," Opt. Commun. 194, 429-433 (2001).
[CrossRef]

Mottay, E.

Mukhopadhyay, S.

Muller, H. R.

Nam, C. H.

T. M. Jeong, C. M. Chung, H. S. Chung, H. S. Kim, C. H. Nam, and C. J. Kim, "Generation of passively Q-switched mode-locked pulse from a laser diode pumped Nd:YAG laser," J. Korean Phys. Soc. 35, 290-293 (1999).Q1

Nickel, D.

A. Beyertt, D. Nickel, and A. Giesen, "Femtosecond thin-disk Yb:KYW regenerative amplifier," Appl. Phys. B 80, 655-660 (2005).
[CrossRef]

Paunescu, G.

M. Siebold, M. Hornung, J. Hein, G. Paunescu, R. Sauerbrey, T. Bergmann, G. Hollemann, "A high-average-power diode-pumped Nd:YVO4 regenerative laser amplifier for picosecond-pulses," Appl. Phys. B. 78, 287-291 (2004).
[CrossRef]

Reali, G. C.

A. Agnesi, A. Guandalini, G. C. Reali, J. K. Jabczyński, K. Kopczyński, and Z. Mierczyk, "Diode-pumped Nd:YVO4 laser at 1.34 μm Q-switched and mode-locked by a V3+:YAG saturable absorber," Opt. Commun. 194, 429-433 (2001).
[CrossRef]

Röser, F.

Salin, F.

Sauerbrey, R.

M. Siebold, M. Hornung, J. Hein, G. Paunescu, R. Sauerbrey, T. Bergmann, G. Hollemann, "A high-average-power diode-pumped Nd:YVO4 regenerative laser amplifier for picosecond-pulses," Appl. Phys. B. 78, 287-291 (2004).
[CrossRef]

Schreiber, T.

Shen, D. Y.

D. Y. Shen, D. Y. Tang, and K. Ueda, "Continuous wave and Q-Switched mode-locking of a Nd:YVO4 laser with a single crystal GaAs wafer," Jpn. J. Appl. Phys. 42, 1224-1227 (2002).
[CrossRef]

Siebold, M.

M. Siebold, M. Hornung, J. Hein, G. Paunescu, R. Sauerbrey, T. Bergmann, G. Hollemann, "A high-average-power diode-pumped Nd:YVO4 regenerative laser amplifier for picosecond-pulses," Appl. Phys. B. 78, 287-291 (2004).
[CrossRef]

Tang, D. Y.

D. Y. Shen, D. Y. Tang, and K. Ueda, "Continuous wave and Q-Switched mode-locking of a Nd:YVO4 laser with a single crystal GaAs wafer," Jpn. J. Appl. Phys. 42, 1224-1227 (2002).
[CrossRef]

Tartara, L.

Tsai, S. W.

Y. F. Chen, and S. W. Tsai, "Simultaneous Q-switching and mode-locking in a diode-pumped Nd:YVO4-Cr4+:YAG Laser," IEEE J. Quantum Electron. 37, 580-586 (2001).
[CrossRef]

Tünnermann, A.

Ueda, K.

D. Y. Shen, D. Y. Tang, and K. Ueda, "Continuous wave and Q-Switched mode-locking of a Nd:YVO4 laser with a single crystal GaAs wafer," Jpn. J. Appl. Phys. 42, 1224-1227 (2002).
[CrossRef]

Unger, S.

Valentine, G. J.

G. J. Valentine, D. Burns, and A. I. Ferguson, "High power, passively mode locked quasi-cw Nd:YLF laser with feedback for Q-switch and spike suppression," in OSA Trends and Photonics (TOPS), 73 CLEO Technical Digest, Washington D. C. 2002), 150-151.Q2

Zellmer, H.

Appl. Phys. B

A. Beyertt, D. Nickel, and A. Giesen, "Femtosecond thin-disk Yb:KYW regenerative amplifier," Appl. Phys. B 80, 655-660 (2005).
[CrossRef]

Appl. Phys. B.

M. Siebold, M. Hornung, J. Hein, G. Paunescu, R. Sauerbrey, T. Bergmann, G. Hollemann, "A high-average-power diode-pumped Nd:YVO4 regenerative laser amplifier for picosecond-pulses," Appl. Phys. B. 78, 287-291 (2004).
[CrossRef]

IEEE J. Quantum Electron.

Y. F. Chen, and S. W. Tsai, "Simultaneous Q-switching and mode-locking in a diode-pumped Nd:YVO4-Cr4+:YAG Laser," IEEE J. Quantum Electron. 37, 580-586 (2001).
[CrossRef]

J. Korean Phys. Soc.

T. M. Jeong, C. M. Chung, H. S. Chung, H. S. Kim, C. H. Nam, and C. J. Kim, "Generation of passively Q-switched mode-locked pulse from a laser diode pumped Nd:YAG laser," J. Korean Phys. Soc. 35, 290-293 (1999).Q1

Jpn. J. Appl. Phys.

D. Y. Shen, D. Y. Tang, and K. Ueda, "Continuous wave and Q-Switched mode-locking of a Nd:YVO4 laser with a single crystal GaAs wafer," Jpn. J. Appl. Phys. 42, 1224-1227 (2002).
[CrossRef]

Opt. Commun.

A. Agnesi, A. Guandalini, G. C. Reali, J. K. Jabczyński, K. Kopczyński, and Z. Mierczyk, "Diode-pumped Nd:YVO4 laser at 1.34 μm Q-switched and mode-locked by a V3+:YAG saturable absorber," Opt. Commun. 194, 429-433 (2001).
[CrossRef]

V. Kubecek, J. Biegert, J-C. Diels, and M. R. Kokta, "Practical source of 50 ps pulses using flash-lamp pumped Nd:YAG laser and passive all solid state pulse control," Opt. Commun. 174, 317-322 (2000).
[CrossRef]

Opt. Express

Opt. Lett.

Washington D.

G. J. Valentine, D. Burns, and A. I. Ferguson, "High power, passively mode locked quasi-cw Nd:YLF laser with feedback for Q-switch and spike suppression," in OSA Trends and Photonics (TOPS), 73 CLEO Technical Digest, Washington D. C. 2002), 150-151.Q2

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Figures (5)

Fig. 1.
Fig. 1.

Schematic of AO-QML laser: LDBS – 20 W laser diode bar with beam shaper made by LIMO, AOM- acousto-optic modulator, M2, M5 – folding mirrors of 1-m radii of curvature, GM– 0.3% Nd:YVO4 crystal of 3×3×10 mm3, M3,M4- flat folding mirrors at translation stages, M6 –flat output coupler (OC), M1 -rear mirror highly reflective at 1064nm and antireflective at 810 nm.

Fig. 2.
Fig. 2.

Oscilloscope traces of RF electric signal at AOM (upper Ch2 trace), optical QML output signal (lower Ch1 trace).

Fig. 3.
Fig. 3.

Output power vs. pump power for several output coupler transmissions; free running regime.

Fig. 4.
Fig. 4.

Output power vs. pump power: diamonds - free running regime, squares - QML regime at 30 kHz repetition rate.

Fig. 5.
Fig. 5.

Oscilloscope trace of fully modulated QML pulse train.

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