Abstract

We describe a new saturable-absorber materials system for solid-state laser mode locking based on thin, nonepitaxially grown, semiconductor-doped films. We fabricated thin films of InAs semiconductor microcrystalites in silica, using rf sputtering. We could control the linear absorption by varying the film thickness, and the nonlinear absorption saturation cross section and recovery time could be adjusted by use of rapid thermal annealing. The use of 30nmthick InAs-doped silica films on sapphire for initiation of Kerr-lens mode locking in a Ti:Al2O3 laser was demonstrated. Pulses as short as 25 fs were generated with a wavelength tuning range from 800 to 880 nm.

© 1998 Optical Society of America

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  1. U. Keller, D. A. B. Miller, G. D. Boyd, T. H. Chiu, J. F. Ferguson, and M. T. Asom, Opt. Lett. 17, 505 (1992).
    [CrossRef] [PubMed]
  2. R. Mellish, P. M. W. French, J. R. Taylor, P. J. Delfyett, and L. T. Florez, Electron. Lett. 29, 894 (1993).
    [CrossRef]
  3. U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönninger, N. Matuschek, and J. Aus der Au, IEEE J. Select. Topics Quantum Electron. 2, 435 (1996).
    [CrossRef]
  4. S. Tsuda, W. H. Knox, S. T. Cundiff, W. Y. Jan, and J. E. Cunningham, IEEE J. Select. Topics Quantum Electron. 2, 454 (1996).
    [CrossRef]
  5. N. Sarukura, Y. Ishida, T. Yanagawa, and H. Nakano, Appl. Phys. Lett. 57, 229 (1990).
    [CrossRef]
  6. K. Tsunetomo, H. Nasu, H. Kitayama, A. Kawabuchi, Y. Osaka, and K. Takiyama, Jpn. J. Appl. Phys. 28, 1928 (1989).
    [CrossRef]
  7. K. Tsunetomo, M. Yamamoto, and Y. Osaka, Jpn. J. Appl. Phys. Pt. 2 30, L521 (1991).
    [CrossRef]
  8. B. G. Potter and J. H. Simmons, J. Appl. Phys. 68, 1218 (1990).
    [CrossRef]
  9. M. Hirasawa, N. Ichikawa, Y. Egashira, I. Honma, and H. Komiyama, Appl. Phys. Lett. 67, 3483 (1995).
    [CrossRef]
  10. K. Tsunetomo, S. Ohtsuka, T. Koyama, S. Tanaka, F. Sasaki, and S. Kobayashi, Nonlinear Opt. 13, 109 (1995).
  11. L. Banyai and S. W. Koch, Semiconductor Quantum Dots (World Scientific, Singapore, 1993).

1996

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönninger, N. Matuschek, and J. Aus der Au, IEEE J. Select. Topics Quantum Electron. 2, 435 (1996).
[CrossRef]

S. Tsuda, W. H. Knox, S. T. Cundiff, W. Y. Jan, and J. E. Cunningham, IEEE J. Select. Topics Quantum Electron. 2, 454 (1996).
[CrossRef]

1995

M. Hirasawa, N. Ichikawa, Y. Egashira, I. Honma, and H. Komiyama, Appl. Phys. Lett. 67, 3483 (1995).
[CrossRef]

K. Tsunetomo, S. Ohtsuka, T. Koyama, S. Tanaka, F. Sasaki, and S. Kobayashi, Nonlinear Opt. 13, 109 (1995).

1993

R. Mellish, P. M. W. French, J. R. Taylor, P. J. Delfyett, and L. T. Florez, Electron. Lett. 29, 894 (1993).
[CrossRef]

1992

1991

K. Tsunetomo, M. Yamamoto, and Y. Osaka, Jpn. J. Appl. Phys. Pt. 2 30, L521 (1991).
[CrossRef]

1990

B. G. Potter and J. H. Simmons, J. Appl. Phys. 68, 1218 (1990).
[CrossRef]

N. Sarukura, Y. Ishida, T. Yanagawa, and H. Nakano, Appl. Phys. Lett. 57, 229 (1990).
[CrossRef]

1989

K. Tsunetomo, H. Nasu, H. Kitayama, A. Kawabuchi, Y. Osaka, and K. Takiyama, Jpn. J. Appl. Phys. 28, 1928 (1989).
[CrossRef]

Asom, M. T.

Aus der Au, J.

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönninger, N. Matuschek, and J. Aus der Au, IEEE J. Select. Topics Quantum Electron. 2, 435 (1996).
[CrossRef]

Banyai, L.

L. Banyai and S. W. Koch, Semiconductor Quantum Dots (World Scientific, Singapore, 1993).

Boyd, G. D.

Braun, B.

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönninger, N. Matuschek, and J. Aus der Au, IEEE J. Select. Topics Quantum Electron. 2, 435 (1996).
[CrossRef]

Chiu, T. H.

Cundiff, S. T.

S. Tsuda, W. H. Knox, S. T. Cundiff, W. Y. Jan, and J. E. Cunningham, IEEE J. Select. Topics Quantum Electron. 2, 454 (1996).
[CrossRef]

Cunningham, J. E.

S. Tsuda, W. H. Knox, S. T. Cundiff, W. Y. Jan, and J. E. Cunningham, IEEE J. Select. Topics Quantum Electron. 2, 454 (1996).
[CrossRef]

Delfyett, P. J.

R. Mellish, P. M. W. French, J. R. Taylor, P. J. Delfyett, and L. T. Florez, Electron. Lett. 29, 894 (1993).
[CrossRef]

Egashira, Y.

M. Hirasawa, N. Ichikawa, Y. Egashira, I. Honma, and H. Komiyama, Appl. Phys. Lett. 67, 3483 (1995).
[CrossRef]

Ferguson, J. F.

Florez, L. T.

R. Mellish, P. M. W. French, J. R. Taylor, P. J. Delfyett, and L. T. Florez, Electron. Lett. 29, 894 (1993).
[CrossRef]

Fluck, R.

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönninger, N. Matuschek, and J. Aus der Au, IEEE J. Select. Topics Quantum Electron. 2, 435 (1996).
[CrossRef]

French, P. M. W.

R. Mellish, P. M. W. French, J. R. Taylor, P. J. Delfyett, and L. T. Florez, Electron. Lett. 29, 894 (1993).
[CrossRef]

Hirasawa, M.

M. Hirasawa, N. Ichikawa, Y. Egashira, I. Honma, and H. Komiyama, Appl. Phys. Lett. 67, 3483 (1995).
[CrossRef]

Honma, I.

M. Hirasawa, N. Ichikawa, Y. Egashira, I. Honma, and H. Komiyama, Appl. Phys. Lett. 67, 3483 (1995).
[CrossRef]

Hönninger, C.

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönninger, N. Matuschek, and J. Aus der Au, IEEE J. Select. Topics Quantum Electron. 2, 435 (1996).
[CrossRef]

Ichikawa, N.

M. Hirasawa, N. Ichikawa, Y. Egashira, I. Honma, and H. Komiyama, Appl. Phys. Lett. 67, 3483 (1995).
[CrossRef]

Ishida, Y.

N. Sarukura, Y. Ishida, T. Yanagawa, and H. Nakano, Appl. Phys. Lett. 57, 229 (1990).
[CrossRef]

Jan, W. Y.

S. Tsuda, W. H. Knox, S. T. Cundiff, W. Y. Jan, and J. E. Cunningham, IEEE J. Select. Topics Quantum Electron. 2, 454 (1996).
[CrossRef]

Jung, I. D.

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönninger, N. Matuschek, and J. Aus der Au, IEEE J. Select. Topics Quantum Electron. 2, 435 (1996).
[CrossRef]

Kärtner, F. X.

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönninger, N. Matuschek, and J. Aus der Au, IEEE J. Select. Topics Quantum Electron. 2, 435 (1996).
[CrossRef]

Kawabuchi, A.

K. Tsunetomo, H. Nasu, H. Kitayama, A. Kawabuchi, Y. Osaka, and K. Takiyama, Jpn. J. Appl. Phys. 28, 1928 (1989).
[CrossRef]

Keller, U.

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönninger, N. Matuschek, and J. Aus der Au, IEEE J. Select. Topics Quantum Electron. 2, 435 (1996).
[CrossRef]

U. Keller, D. A. B. Miller, G. D. Boyd, T. H. Chiu, J. F. Ferguson, and M. T. Asom, Opt. Lett. 17, 505 (1992).
[CrossRef] [PubMed]

Kitayama, H.

K. Tsunetomo, H. Nasu, H. Kitayama, A. Kawabuchi, Y. Osaka, and K. Takiyama, Jpn. J. Appl. Phys. 28, 1928 (1989).
[CrossRef]

Knox, W. H.

S. Tsuda, W. H. Knox, S. T. Cundiff, W. Y. Jan, and J. E. Cunningham, IEEE J. Select. Topics Quantum Electron. 2, 454 (1996).
[CrossRef]

Kobayashi, S.

K. Tsunetomo, S. Ohtsuka, T. Koyama, S. Tanaka, F. Sasaki, and S. Kobayashi, Nonlinear Opt. 13, 109 (1995).

Koch, S. W.

L. Banyai and S. W. Koch, Semiconductor Quantum Dots (World Scientific, Singapore, 1993).

Komiyama, H.

M. Hirasawa, N. Ichikawa, Y. Egashira, I. Honma, and H. Komiyama, Appl. Phys. Lett. 67, 3483 (1995).
[CrossRef]

Kopf, D.

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönninger, N. Matuschek, and J. Aus der Au, IEEE J. Select. Topics Quantum Electron. 2, 435 (1996).
[CrossRef]

Koyama, T.

K. Tsunetomo, S. Ohtsuka, T. Koyama, S. Tanaka, F. Sasaki, and S. Kobayashi, Nonlinear Opt. 13, 109 (1995).

Matuschek, N.

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönninger, N. Matuschek, and J. Aus der Au, IEEE J. Select. Topics Quantum Electron. 2, 435 (1996).
[CrossRef]

Mellish, R.

R. Mellish, P. M. W. French, J. R. Taylor, P. J. Delfyett, and L. T. Florez, Electron. Lett. 29, 894 (1993).
[CrossRef]

Miller, D. A. B.

Nakano, H.

N. Sarukura, Y. Ishida, T. Yanagawa, and H. Nakano, Appl. Phys. Lett. 57, 229 (1990).
[CrossRef]

Nasu, H.

K. Tsunetomo, H. Nasu, H. Kitayama, A. Kawabuchi, Y. Osaka, and K. Takiyama, Jpn. J. Appl. Phys. 28, 1928 (1989).
[CrossRef]

Ohtsuka, S.

K. Tsunetomo, S. Ohtsuka, T. Koyama, S. Tanaka, F. Sasaki, and S. Kobayashi, Nonlinear Opt. 13, 109 (1995).

Osaka, Y.

K. Tsunetomo, M. Yamamoto, and Y. Osaka, Jpn. J. Appl. Phys. Pt. 2 30, L521 (1991).
[CrossRef]

K. Tsunetomo, H. Nasu, H. Kitayama, A. Kawabuchi, Y. Osaka, and K. Takiyama, Jpn. J. Appl. Phys. 28, 1928 (1989).
[CrossRef]

Potter, B. G.

B. G. Potter and J. H. Simmons, J. Appl. Phys. 68, 1218 (1990).
[CrossRef]

Sarukura, N.

N. Sarukura, Y. Ishida, T. Yanagawa, and H. Nakano, Appl. Phys. Lett. 57, 229 (1990).
[CrossRef]

Sasaki, F.

K. Tsunetomo, S. Ohtsuka, T. Koyama, S. Tanaka, F. Sasaki, and S. Kobayashi, Nonlinear Opt. 13, 109 (1995).

Simmons, J. H.

B. G. Potter and J. H. Simmons, J. Appl. Phys. 68, 1218 (1990).
[CrossRef]

Takiyama, K.

K. Tsunetomo, H. Nasu, H. Kitayama, A. Kawabuchi, Y. Osaka, and K. Takiyama, Jpn. J. Appl. Phys. 28, 1928 (1989).
[CrossRef]

Tanaka, S.

K. Tsunetomo, S. Ohtsuka, T. Koyama, S. Tanaka, F. Sasaki, and S. Kobayashi, Nonlinear Opt. 13, 109 (1995).

Taylor, J. R.

R. Mellish, P. M. W. French, J. R. Taylor, P. J. Delfyett, and L. T. Florez, Electron. Lett. 29, 894 (1993).
[CrossRef]

Tsuda, S.

S. Tsuda, W. H. Knox, S. T. Cundiff, W. Y. Jan, and J. E. Cunningham, IEEE J. Select. Topics Quantum Electron. 2, 454 (1996).
[CrossRef]

Tsunetomo, K.

K. Tsunetomo, S. Ohtsuka, T. Koyama, S. Tanaka, F. Sasaki, and S. Kobayashi, Nonlinear Opt. 13, 109 (1995).

K. Tsunetomo, M. Yamamoto, and Y. Osaka, Jpn. J. Appl. Phys. Pt. 2 30, L521 (1991).
[CrossRef]

K. Tsunetomo, H. Nasu, H. Kitayama, A. Kawabuchi, Y. Osaka, and K. Takiyama, Jpn. J. Appl. Phys. 28, 1928 (1989).
[CrossRef]

Weingarten, K. J.

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönninger, N. Matuschek, and J. Aus der Au, IEEE J. Select. Topics Quantum Electron. 2, 435 (1996).
[CrossRef]

Yamamoto, M.

K. Tsunetomo, M. Yamamoto, and Y. Osaka, Jpn. J. Appl. Phys. Pt. 2 30, L521 (1991).
[CrossRef]

Yanagawa, T.

N. Sarukura, Y. Ishida, T. Yanagawa, and H. Nakano, Appl. Phys. Lett. 57, 229 (1990).
[CrossRef]

Appl. Phys. Lett.

N. Sarukura, Y. Ishida, T. Yanagawa, and H. Nakano, Appl. Phys. Lett. 57, 229 (1990).
[CrossRef]

M. Hirasawa, N. Ichikawa, Y. Egashira, I. Honma, and H. Komiyama, Appl. Phys. Lett. 67, 3483 (1995).
[CrossRef]

Electron. Lett.

R. Mellish, P. M. W. French, J. R. Taylor, P. J. Delfyett, and L. T. Florez, Electron. Lett. 29, 894 (1993).
[CrossRef]

IEEE J. Select. Topics Quantum Electron.

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönninger, N. Matuschek, and J. Aus der Au, IEEE J. Select. Topics Quantum Electron. 2, 435 (1996).
[CrossRef]

S. Tsuda, W. H. Knox, S. T. Cundiff, W. Y. Jan, and J. E. Cunningham, IEEE J. Select. Topics Quantum Electron. 2, 454 (1996).
[CrossRef]

J. Appl. Phys.

B. G. Potter and J. H. Simmons, J. Appl. Phys. 68, 1218 (1990).
[CrossRef]

Jpn. J. Appl. Phys.

K. Tsunetomo, H. Nasu, H. Kitayama, A. Kawabuchi, Y. Osaka, and K. Takiyama, Jpn. J. Appl. Phys. 28, 1928 (1989).
[CrossRef]

Jpn. J. Appl. Phys. Pt. 2

K. Tsunetomo, M. Yamamoto, and Y. Osaka, Jpn. J. Appl. Phys. Pt. 2 30, L521 (1991).
[CrossRef]

Nonlinear Opt.

K. Tsunetomo, S. Ohtsuka, T. Koyama, S. Tanaka, F. Sasaki, and S. Kobayashi, Nonlinear Opt. 13, 109 (1995).

Opt. Lett.

Other

L. Banyai and S. W. Koch, Semiconductor Quantum Dots (World Scientific, Singapore, 1993).

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Figures (5)

Fig. 1
Fig. 1

Optical absorption spectrum of an InAs-doped silica film on sapphire. The film thickness for this measurement was 250 nm, and the film thickness used for mode locking was 30 nm.

Fig. 2
Fig. 2

Pump-probe traces for annealed and as-grown InAs-doped silica films. Laser wavelength, 800 nm; pulse duration, 30 fs; repetition rate, 80 MHz. RTA in nitrogen was used to provide faster absorption saturation recovery times.

Fig. 3
Fig. 3

Schematic diagram of the Ti:Al2O3 laser cavity: OC, output coupler; SA, saturable absorber; CM1, 10-cm ROC mirrors; CM2, 7.5-cm ROC mirror; CM3, 5-cm ROC mirror.

Fig. 4
Fig. 4

Interferometric autocorrelation of self-starting saturable-absorber-assisted KLM pulses.

Fig. 5
Fig. 5

Normalized pulse spectra of mode-locked pulses. The center wavelength could be tuned over 80 nm while sustaining self-starting mode-locking operation.

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