Abstract

Saturable-absorber Q switching of a neodymium-doped YAlO3 laser at 1.34 µm and an erbium-doped glass laser at 1.54 µm with a Co2+:MgAl2O4 crystal was demonstrated. Q-switched 1.34-µm pulses of 19-mJ energy and 60-ns duration and Q-switched 1.54-µm pulses of 2.7-mJ energy and 75-ns width were obtained. The ground-state absorption cross sections of the Co2+:MgAl2O4 crystal were estimated to be (2.8 ± 0.4) × 10-19 and (3.5 ± 0.6) × 10-19 cm2 at 1.34 and 1.54 µm, respectively. The 4 T 1(4 F) → 4 A 2 relaxation time of the Co2+ ion in the MgAl2O4 crystal was measured to be ∼350 ns.

© 1999 Optical Society of America

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  1. V. B. Sigachev, T. T. Basiev, M. E. Doroshenko, V. V. Osiko, A. G. Papashvili, “1.3 µm neodymium lasers passively Q-switched with Nd2+:SrF2 and V3+:YAG crystals and Raman shifting to eye-safe region,” in Advanced Solid-State Lasers, B. H. T. Chai, S. A. Payne, eds., Vol. 24 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1995), pp. 454–459.
  2. V. P. Mikhailov, N. V. Kuleshov, N. I. Zhavoronkov, P. V. Prokoshin, K. V. Yumashev, V. A. Sandulenko, “Optical absorption and nonlinear transmission of tetrahedral V3+(d2) in yttrium aluminium garnet,” Opt. Mater. 2, 267–272 (1993).
    [Crossref]
  3. R. D. Stultz, M. B. Camargo, M. Birnbaum, M. Kokta, “Divalent uranium cobalt saturable absorber Q-switches at 1.54 µm,” in Advanced Solid-State Lasers, B. H. T. Chai, S. A. Payne, eds., Vol. 24 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1995), pp. 460–464.
  4. Ph. Thony, B. Ferrand, E. Molva, “1.55-µm passively Q-switched microchip laser,” in Advanced Solid-State Lasers, W. R. Bosenberg, M. M. Fejer, eds., Vol. 19 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1998), pp. 150–152.
  5. M. Birnbaum, M. B. Camargo, S. Lee, F. Unlu, R. D. Stultz, “Co2+:ZnSe saturable absorber Q-switch for the 1.54 µm Er3+:Yb3+:glass laser,” in Advanced Solid-State Lasers, C. R. Pollock, W. R. Bosenberg, eds., Vol. 10 of OSA Trends in Photonics Series (Optical Society of America, Washington, D.C., 1997), pp. 148–151.
  6. V. P. Mikhailov, K. V. Yumashev, I. A. Denisov, P. V. Prokoshin, N. N. Posnov, “Passive Q-switch performance at 1.3 µm (1.5 µm) and nonlinear spectroscopy of Co2+:MgAl2O4 crystal,” in Digest of Advanced Solid-State Lasers, OSA Technical Digest (Optical Society of America, Washington, D.C., 1999), pp. 145–147.
  7. B. Denker, B. Galagan, E. Godovikova, M. Meilman, V. Osiko, S. Sverchkov, “The efficient saturable absorber for 1.54 µm Er:glass lasers,” in Digest of Advanced Solid-State Lasers (Optical Society of America, Washington, D.C., 1999), pp. PD17–PD17–4.
  8. R. D. Gillen, R. E. Salomon, “Optical spectra of chromium(III), cobalt(II), and nickel(II) ions in mixed spinels,” J. Phys. Chem. 47, 4252–4256 (1970).
  9. N. V. Kuleshov, V. P. Mikhailov, V. G. Scherbitsky, P. V. Prokoshin, K. V. Yumashev, “Absorption and luminescence of tetrahedral Co2+ ion in MgAl2O4,” J. Lumin. 55, 265–269 (1993).
    [Crossref]
  10. S. Shapiro, Ultrashort Light Pulses (Springer-Verlag, Berlin, 1977).
    [Crossref]
  11. Y.-K. Kuo, M.-F. Huang, M. Birnbaum, “Tunable Cr4+:YSO Q-switched Cr:LiCAF laser,” IEEE J. Quantum Electron. 31, 657–663 (1995).
    [Crossref]
  12. A. M. Malyarevich, I. A. Denisov, K. V. Yumashev, V. P. Mikhailov, R. S. Conroy, B. D. Sinclair, “V:YAG—a new passive Q-switch for diode-pumped solid-state lasers,” Appl. Phys. B. 67, 555–558 (1998).
    [Crossref]

1998 (1)

A. M. Malyarevich, I. A. Denisov, K. V. Yumashev, V. P. Mikhailov, R. S. Conroy, B. D. Sinclair, “V:YAG—a new passive Q-switch for diode-pumped solid-state lasers,” Appl. Phys. B. 67, 555–558 (1998).
[Crossref]

1995 (1)

Y.-K. Kuo, M.-F. Huang, M. Birnbaum, “Tunable Cr4+:YSO Q-switched Cr:LiCAF laser,” IEEE J. Quantum Electron. 31, 657–663 (1995).
[Crossref]

1993 (2)

N. V. Kuleshov, V. P. Mikhailov, V. G. Scherbitsky, P. V. Prokoshin, K. V. Yumashev, “Absorption and luminescence of tetrahedral Co2+ ion in MgAl2O4,” J. Lumin. 55, 265–269 (1993).
[Crossref]

V. P. Mikhailov, N. V. Kuleshov, N. I. Zhavoronkov, P. V. Prokoshin, K. V. Yumashev, V. A. Sandulenko, “Optical absorption and nonlinear transmission of tetrahedral V3+(d2) in yttrium aluminium garnet,” Opt. Mater. 2, 267–272 (1993).
[Crossref]

1970 (1)

R. D. Gillen, R. E. Salomon, “Optical spectra of chromium(III), cobalt(II), and nickel(II) ions in mixed spinels,” J. Phys. Chem. 47, 4252–4256 (1970).

Basiev, T. T.

V. B. Sigachev, T. T. Basiev, M. E. Doroshenko, V. V. Osiko, A. G. Papashvili, “1.3 µm neodymium lasers passively Q-switched with Nd2+:SrF2 and V3+:YAG crystals and Raman shifting to eye-safe region,” in Advanced Solid-State Lasers, B. H. T. Chai, S. A. Payne, eds., Vol. 24 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1995), pp. 454–459.

Birnbaum, M.

Y.-K. Kuo, M.-F. Huang, M. Birnbaum, “Tunable Cr4+:YSO Q-switched Cr:LiCAF laser,” IEEE J. Quantum Electron. 31, 657–663 (1995).
[Crossref]

R. D. Stultz, M. B. Camargo, M. Birnbaum, M. Kokta, “Divalent uranium cobalt saturable absorber Q-switches at 1.54 µm,” in Advanced Solid-State Lasers, B. H. T. Chai, S. A. Payne, eds., Vol. 24 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1995), pp. 460–464.

M. Birnbaum, M. B. Camargo, S. Lee, F. Unlu, R. D. Stultz, “Co2+:ZnSe saturable absorber Q-switch for the 1.54 µm Er3+:Yb3+:glass laser,” in Advanced Solid-State Lasers, C. R. Pollock, W. R. Bosenberg, eds., Vol. 10 of OSA Trends in Photonics Series (Optical Society of America, Washington, D.C., 1997), pp. 148–151.

Camargo, M. B.

M. Birnbaum, M. B. Camargo, S. Lee, F. Unlu, R. D. Stultz, “Co2+:ZnSe saturable absorber Q-switch for the 1.54 µm Er3+:Yb3+:glass laser,” in Advanced Solid-State Lasers, C. R. Pollock, W. R. Bosenberg, eds., Vol. 10 of OSA Trends in Photonics Series (Optical Society of America, Washington, D.C., 1997), pp. 148–151.

R. D. Stultz, M. B. Camargo, M. Birnbaum, M. Kokta, “Divalent uranium cobalt saturable absorber Q-switches at 1.54 µm,” in Advanced Solid-State Lasers, B. H. T. Chai, S. A. Payne, eds., Vol. 24 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1995), pp. 460–464.

Conroy, R. S.

A. M. Malyarevich, I. A. Denisov, K. V. Yumashev, V. P. Mikhailov, R. S. Conroy, B. D. Sinclair, “V:YAG—a new passive Q-switch for diode-pumped solid-state lasers,” Appl. Phys. B. 67, 555–558 (1998).
[Crossref]

Denisov, I. A.

A. M. Malyarevich, I. A. Denisov, K. V. Yumashev, V. P. Mikhailov, R. S. Conroy, B. D. Sinclair, “V:YAG—a new passive Q-switch for diode-pumped solid-state lasers,” Appl. Phys. B. 67, 555–558 (1998).
[Crossref]

V. P. Mikhailov, K. V. Yumashev, I. A. Denisov, P. V. Prokoshin, N. N. Posnov, “Passive Q-switch performance at 1.3 µm (1.5 µm) and nonlinear spectroscopy of Co2+:MgAl2O4 crystal,” in Digest of Advanced Solid-State Lasers, OSA Technical Digest (Optical Society of America, Washington, D.C., 1999), pp. 145–147.

Denker, B.

B. Denker, B. Galagan, E. Godovikova, M. Meilman, V. Osiko, S. Sverchkov, “The efficient saturable absorber for 1.54 µm Er:glass lasers,” in Digest of Advanced Solid-State Lasers (Optical Society of America, Washington, D.C., 1999), pp. PD17–PD17–4.

Doroshenko, M. E.

V. B. Sigachev, T. T. Basiev, M. E. Doroshenko, V. V. Osiko, A. G. Papashvili, “1.3 µm neodymium lasers passively Q-switched with Nd2+:SrF2 and V3+:YAG crystals and Raman shifting to eye-safe region,” in Advanced Solid-State Lasers, B. H. T. Chai, S. A. Payne, eds., Vol. 24 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1995), pp. 454–459.

Ferrand, B.

Ph. Thony, B. Ferrand, E. Molva, “1.55-µm passively Q-switched microchip laser,” in Advanced Solid-State Lasers, W. R. Bosenberg, M. M. Fejer, eds., Vol. 19 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1998), pp. 150–152.

Galagan, B.

B. Denker, B. Galagan, E. Godovikova, M. Meilman, V. Osiko, S. Sverchkov, “The efficient saturable absorber for 1.54 µm Er:glass lasers,” in Digest of Advanced Solid-State Lasers (Optical Society of America, Washington, D.C., 1999), pp. PD17–PD17–4.

Gillen, R. D.

R. D. Gillen, R. E. Salomon, “Optical spectra of chromium(III), cobalt(II), and nickel(II) ions in mixed spinels,” J. Phys. Chem. 47, 4252–4256 (1970).

Godovikova, E.

B. Denker, B. Galagan, E. Godovikova, M. Meilman, V. Osiko, S. Sverchkov, “The efficient saturable absorber for 1.54 µm Er:glass lasers,” in Digest of Advanced Solid-State Lasers (Optical Society of America, Washington, D.C., 1999), pp. PD17–PD17–4.

Huang, M.-F.

Y.-K. Kuo, M.-F. Huang, M. Birnbaum, “Tunable Cr4+:YSO Q-switched Cr:LiCAF laser,” IEEE J. Quantum Electron. 31, 657–663 (1995).
[Crossref]

Kokta, M.

R. D. Stultz, M. B. Camargo, M. Birnbaum, M. Kokta, “Divalent uranium cobalt saturable absorber Q-switches at 1.54 µm,” in Advanced Solid-State Lasers, B. H. T. Chai, S. A. Payne, eds., Vol. 24 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1995), pp. 460–464.

Kuleshov, N. V.

V. P. Mikhailov, N. V. Kuleshov, N. I. Zhavoronkov, P. V. Prokoshin, K. V. Yumashev, V. A. Sandulenko, “Optical absorption and nonlinear transmission of tetrahedral V3+(d2) in yttrium aluminium garnet,” Opt. Mater. 2, 267–272 (1993).
[Crossref]

N. V. Kuleshov, V. P. Mikhailov, V. G. Scherbitsky, P. V. Prokoshin, K. V. Yumashev, “Absorption and luminescence of tetrahedral Co2+ ion in MgAl2O4,” J. Lumin. 55, 265–269 (1993).
[Crossref]

Kuo, Y.-K.

Y.-K. Kuo, M.-F. Huang, M. Birnbaum, “Tunable Cr4+:YSO Q-switched Cr:LiCAF laser,” IEEE J. Quantum Electron. 31, 657–663 (1995).
[Crossref]

Lee, S.

M. Birnbaum, M. B. Camargo, S. Lee, F. Unlu, R. D. Stultz, “Co2+:ZnSe saturable absorber Q-switch for the 1.54 µm Er3+:Yb3+:glass laser,” in Advanced Solid-State Lasers, C. R. Pollock, W. R. Bosenberg, eds., Vol. 10 of OSA Trends in Photonics Series (Optical Society of America, Washington, D.C., 1997), pp. 148–151.

Malyarevich, A. M.

A. M. Malyarevich, I. A. Denisov, K. V. Yumashev, V. P. Mikhailov, R. S. Conroy, B. D. Sinclair, “V:YAG—a new passive Q-switch for diode-pumped solid-state lasers,” Appl. Phys. B. 67, 555–558 (1998).
[Crossref]

Meilman, M.

B. Denker, B. Galagan, E. Godovikova, M. Meilman, V. Osiko, S. Sverchkov, “The efficient saturable absorber for 1.54 µm Er:glass lasers,” in Digest of Advanced Solid-State Lasers (Optical Society of America, Washington, D.C., 1999), pp. PD17–PD17–4.

Mikhailov, V. P.

A. M. Malyarevich, I. A. Denisov, K. V. Yumashev, V. P. Mikhailov, R. S. Conroy, B. D. Sinclair, “V:YAG—a new passive Q-switch for diode-pumped solid-state lasers,” Appl. Phys. B. 67, 555–558 (1998).
[Crossref]

N. V. Kuleshov, V. P. Mikhailov, V. G. Scherbitsky, P. V. Prokoshin, K. V. Yumashev, “Absorption and luminescence of tetrahedral Co2+ ion in MgAl2O4,” J. Lumin. 55, 265–269 (1993).
[Crossref]

V. P. Mikhailov, N. V. Kuleshov, N. I. Zhavoronkov, P. V. Prokoshin, K. V. Yumashev, V. A. Sandulenko, “Optical absorption and nonlinear transmission of tetrahedral V3+(d2) in yttrium aluminium garnet,” Opt. Mater. 2, 267–272 (1993).
[Crossref]

V. P. Mikhailov, K. V. Yumashev, I. A. Denisov, P. V. Prokoshin, N. N. Posnov, “Passive Q-switch performance at 1.3 µm (1.5 µm) and nonlinear spectroscopy of Co2+:MgAl2O4 crystal,” in Digest of Advanced Solid-State Lasers, OSA Technical Digest (Optical Society of America, Washington, D.C., 1999), pp. 145–147.

Molva, E.

Ph. Thony, B. Ferrand, E. Molva, “1.55-µm passively Q-switched microchip laser,” in Advanced Solid-State Lasers, W. R. Bosenberg, M. M. Fejer, eds., Vol. 19 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1998), pp. 150–152.

Osiko, V.

B. Denker, B. Galagan, E. Godovikova, M. Meilman, V. Osiko, S. Sverchkov, “The efficient saturable absorber for 1.54 µm Er:glass lasers,” in Digest of Advanced Solid-State Lasers (Optical Society of America, Washington, D.C., 1999), pp. PD17–PD17–4.

Osiko, V. V.

V. B. Sigachev, T. T. Basiev, M. E. Doroshenko, V. V. Osiko, A. G. Papashvili, “1.3 µm neodymium lasers passively Q-switched with Nd2+:SrF2 and V3+:YAG crystals and Raman shifting to eye-safe region,” in Advanced Solid-State Lasers, B. H. T. Chai, S. A. Payne, eds., Vol. 24 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1995), pp. 454–459.

Papashvili, A. G.

V. B. Sigachev, T. T. Basiev, M. E. Doroshenko, V. V. Osiko, A. G. Papashvili, “1.3 µm neodymium lasers passively Q-switched with Nd2+:SrF2 and V3+:YAG crystals and Raman shifting to eye-safe region,” in Advanced Solid-State Lasers, B. H. T. Chai, S. A. Payne, eds., Vol. 24 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1995), pp. 454–459.

Posnov, N. N.

V. P. Mikhailov, K. V. Yumashev, I. A. Denisov, P. V. Prokoshin, N. N. Posnov, “Passive Q-switch performance at 1.3 µm (1.5 µm) and nonlinear spectroscopy of Co2+:MgAl2O4 crystal,” in Digest of Advanced Solid-State Lasers, OSA Technical Digest (Optical Society of America, Washington, D.C., 1999), pp. 145–147.

Prokoshin, P. V.

N. V. Kuleshov, V. P. Mikhailov, V. G. Scherbitsky, P. V. Prokoshin, K. V. Yumashev, “Absorption and luminescence of tetrahedral Co2+ ion in MgAl2O4,” J. Lumin. 55, 265–269 (1993).
[Crossref]

V. P. Mikhailov, N. V. Kuleshov, N. I. Zhavoronkov, P. V. Prokoshin, K. V. Yumashev, V. A. Sandulenko, “Optical absorption and nonlinear transmission of tetrahedral V3+(d2) in yttrium aluminium garnet,” Opt. Mater. 2, 267–272 (1993).
[Crossref]

V. P. Mikhailov, K. V. Yumashev, I. A. Denisov, P. V. Prokoshin, N. N. Posnov, “Passive Q-switch performance at 1.3 µm (1.5 µm) and nonlinear spectroscopy of Co2+:MgAl2O4 crystal,” in Digest of Advanced Solid-State Lasers, OSA Technical Digest (Optical Society of America, Washington, D.C., 1999), pp. 145–147.

Salomon, R. E.

R. D. Gillen, R. E. Salomon, “Optical spectra of chromium(III), cobalt(II), and nickel(II) ions in mixed spinels,” J. Phys. Chem. 47, 4252–4256 (1970).

Sandulenko, V. A.

V. P. Mikhailov, N. V. Kuleshov, N. I. Zhavoronkov, P. V. Prokoshin, K. V. Yumashev, V. A. Sandulenko, “Optical absorption and nonlinear transmission of tetrahedral V3+(d2) in yttrium aluminium garnet,” Opt. Mater. 2, 267–272 (1993).
[Crossref]

Scherbitsky, V. G.

N. V. Kuleshov, V. P. Mikhailov, V. G. Scherbitsky, P. V. Prokoshin, K. V. Yumashev, “Absorption and luminescence of tetrahedral Co2+ ion in MgAl2O4,” J. Lumin. 55, 265–269 (1993).
[Crossref]

Shapiro, S.

S. Shapiro, Ultrashort Light Pulses (Springer-Verlag, Berlin, 1977).
[Crossref]

Sigachev, V. B.

V. B. Sigachev, T. T. Basiev, M. E. Doroshenko, V. V. Osiko, A. G. Papashvili, “1.3 µm neodymium lasers passively Q-switched with Nd2+:SrF2 and V3+:YAG crystals and Raman shifting to eye-safe region,” in Advanced Solid-State Lasers, B. H. T. Chai, S. A. Payne, eds., Vol. 24 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1995), pp. 454–459.

Sinclair, B. D.

A. M. Malyarevich, I. A. Denisov, K. V. Yumashev, V. P. Mikhailov, R. S. Conroy, B. D. Sinclair, “V:YAG—a new passive Q-switch for diode-pumped solid-state lasers,” Appl. Phys. B. 67, 555–558 (1998).
[Crossref]

Stultz, R. D.

R. D. Stultz, M. B. Camargo, M. Birnbaum, M. Kokta, “Divalent uranium cobalt saturable absorber Q-switches at 1.54 µm,” in Advanced Solid-State Lasers, B. H. T. Chai, S. A. Payne, eds., Vol. 24 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1995), pp. 460–464.

M. Birnbaum, M. B. Camargo, S. Lee, F. Unlu, R. D. Stultz, “Co2+:ZnSe saturable absorber Q-switch for the 1.54 µm Er3+:Yb3+:glass laser,” in Advanced Solid-State Lasers, C. R. Pollock, W. R. Bosenberg, eds., Vol. 10 of OSA Trends in Photonics Series (Optical Society of America, Washington, D.C., 1997), pp. 148–151.

Sverchkov, S.

B. Denker, B. Galagan, E. Godovikova, M. Meilman, V. Osiko, S. Sverchkov, “The efficient saturable absorber for 1.54 µm Er:glass lasers,” in Digest of Advanced Solid-State Lasers (Optical Society of America, Washington, D.C., 1999), pp. PD17–PD17–4.

Thony, Ph.

Ph. Thony, B. Ferrand, E. Molva, “1.55-µm passively Q-switched microchip laser,” in Advanced Solid-State Lasers, W. R. Bosenberg, M. M. Fejer, eds., Vol. 19 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1998), pp. 150–152.

Unlu, F.

M. Birnbaum, M. B. Camargo, S. Lee, F. Unlu, R. D. Stultz, “Co2+:ZnSe saturable absorber Q-switch for the 1.54 µm Er3+:Yb3+:glass laser,” in Advanced Solid-State Lasers, C. R. Pollock, W. R. Bosenberg, eds., Vol. 10 of OSA Trends in Photonics Series (Optical Society of America, Washington, D.C., 1997), pp. 148–151.

Yumashev, K. V.

A. M. Malyarevich, I. A. Denisov, K. V. Yumashev, V. P. Mikhailov, R. S. Conroy, B. D. Sinclair, “V:YAG—a new passive Q-switch for diode-pumped solid-state lasers,” Appl. Phys. B. 67, 555–558 (1998).
[Crossref]

N. V. Kuleshov, V. P. Mikhailov, V. G. Scherbitsky, P. V. Prokoshin, K. V. Yumashev, “Absorption and luminescence of tetrahedral Co2+ ion in MgAl2O4,” J. Lumin. 55, 265–269 (1993).
[Crossref]

V. P. Mikhailov, N. V. Kuleshov, N. I. Zhavoronkov, P. V. Prokoshin, K. V. Yumashev, V. A. Sandulenko, “Optical absorption and nonlinear transmission of tetrahedral V3+(d2) in yttrium aluminium garnet,” Opt. Mater. 2, 267–272 (1993).
[Crossref]

V. P. Mikhailov, K. V. Yumashev, I. A. Denisov, P. V. Prokoshin, N. N. Posnov, “Passive Q-switch performance at 1.3 µm (1.5 µm) and nonlinear spectroscopy of Co2+:MgAl2O4 crystal,” in Digest of Advanced Solid-State Lasers, OSA Technical Digest (Optical Society of America, Washington, D.C., 1999), pp. 145–147.

Zhavoronkov, N. I.

V. P. Mikhailov, N. V. Kuleshov, N. I. Zhavoronkov, P. V. Prokoshin, K. V. Yumashev, V. A. Sandulenko, “Optical absorption and nonlinear transmission of tetrahedral V3+(d2) in yttrium aluminium garnet,” Opt. Mater. 2, 267–272 (1993).
[Crossref]

Appl. Phys. B. (1)

A. M. Malyarevich, I. A. Denisov, K. V. Yumashev, V. P. Mikhailov, R. S. Conroy, B. D. Sinclair, “V:YAG—a new passive Q-switch for diode-pumped solid-state lasers,” Appl. Phys. B. 67, 555–558 (1998).
[Crossref]

IEEE J. Quantum Electron. (1)

Y.-K. Kuo, M.-F. Huang, M. Birnbaum, “Tunable Cr4+:YSO Q-switched Cr:LiCAF laser,” IEEE J. Quantum Electron. 31, 657–663 (1995).
[Crossref]

J. Lumin. (1)

N. V. Kuleshov, V. P. Mikhailov, V. G. Scherbitsky, P. V. Prokoshin, K. V. Yumashev, “Absorption and luminescence of tetrahedral Co2+ ion in MgAl2O4,” J. Lumin. 55, 265–269 (1993).
[Crossref]

J. Phys. Chem. (1)

R. D. Gillen, R. E. Salomon, “Optical spectra of chromium(III), cobalt(II), and nickel(II) ions in mixed spinels,” J. Phys. Chem. 47, 4252–4256 (1970).

Opt. Mater. (1)

V. P. Mikhailov, N. V. Kuleshov, N. I. Zhavoronkov, P. V. Prokoshin, K. V. Yumashev, V. A. Sandulenko, “Optical absorption and nonlinear transmission of tetrahedral V3+(d2) in yttrium aluminium garnet,” Opt. Mater. 2, 267–272 (1993).
[Crossref]

Other (7)

R. D. Stultz, M. B. Camargo, M. Birnbaum, M. Kokta, “Divalent uranium cobalt saturable absorber Q-switches at 1.54 µm,” in Advanced Solid-State Lasers, B. H. T. Chai, S. A. Payne, eds., Vol. 24 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1995), pp. 460–464.

Ph. Thony, B. Ferrand, E. Molva, “1.55-µm passively Q-switched microchip laser,” in Advanced Solid-State Lasers, W. R. Bosenberg, M. M. Fejer, eds., Vol. 19 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1998), pp. 150–152.

M. Birnbaum, M. B. Camargo, S. Lee, F. Unlu, R. D. Stultz, “Co2+:ZnSe saturable absorber Q-switch for the 1.54 µm Er3+:Yb3+:glass laser,” in Advanced Solid-State Lasers, C. R. Pollock, W. R. Bosenberg, eds., Vol. 10 of OSA Trends in Photonics Series (Optical Society of America, Washington, D.C., 1997), pp. 148–151.

V. P. Mikhailov, K. V. Yumashev, I. A. Denisov, P. V. Prokoshin, N. N. Posnov, “Passive Q-switch performance at 1.3 µm (1.5 µm) and nonlinear spectroscopy of Co2+:MgAl2O4 crystal,” in Digest of Advanced Solid-State Lasers, OSA Technical Digest (Optical Society of America, Washington, D.C., 1999), pp. 145–147.

B. Denker, B. Galagan, E. Godovikova, M. Meilman, V. Osiko, S. Sverchkov, “The efficient saturable absorber for 1.54 µm Er:glass lasers,” in Digest of Advanced Solid-State Lasers (Optical Society of America, Washington, D.C., 1999), pp. PD17–PD17–4.

V. B. Sigachev, T. T. Basiev, M. E. Doroshenko, V. V. Osiko, A. G. Papashvili, “1.3 µm neodymium lasers passively Q-switched with Nd2+:SrF2 and V3+:YAG crystals and Raman shifting to eye-safe region,” in Advanced Solid-State Lasers, B. H. T. Chai, S. A. Payne, eds., Vol. 24 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1995), pp. 454–459.

S. Shapiro, Ultrashort Light Pulses (Springer-Verlag, Berlin, 1977).
[Crossref]

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Figures (4)

Fig. 1
Fig. 1

Room-temperature absorption spectrum of a Co2+:MALO crystal and schematic energy-level diagram of a Co2+ ion in a tetrahedral crystal field.

Fig. 2
Fig. 2

Transmission at 1.34 µm (filled circles) and 1.54 µm (open circles) as a function of the input energy fluence for the 3-mm-thick Co2+:MALO crystal. Solid and dashed curves are the results of the fitting of the experimental data at 1.34 and 1.54 µm, respectively, with the aid of Eq. (2).

Fig. 3
Fig. 3

Transmission kinetics of the Co2+:MALO crystal at a wavelength of 0.58 µm after 60-ns pulse excitation at 1.34 µm. The solid curve is the result of fitting with the aid of Eq. (1).

Fig. 4
Fig. 4

Schematic of the passively Q-switched 1.34-µm Nd3+:YAlO3 laser cavity with a Co2+:MALO saturable absorber.

Equations (2)

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lnTt/T=lnT0/Texp-t/τ,
dE/dz=-ω ln1/T0/lσGSA1-σESA/σGSA×1-exp-σGSAE/ω-ln1/T0σESAE/lσGSA,

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