Abstract

A newly developed Q-switched Er:glass laser with a long pulse length, suitable for fiber-fault location, is described. A specially prepared athermal rod has made it possible to operate at a 5-Hz repetition rate. A feedback-stabilized Q-switching method involving fluorescence monitoring has been applied to this three-level laser system. A ±3% power stability (standard deviation) has been obtained for a 1-μsec pulse with a 2-mJ output energy.

© 1984 Optical Society of America

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References

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  1. E. Snitzer, Appl. Opt. 5, 1487 (1966).
    [CrossRef] [PubMed]
  2. V. P. Gapontsv, S. M. Matitsin, A. A. Isineev, V. B. Kravchenko, Opt. Laser Technol. 14, 189 (1982).
    [CrossRef]
  3. P. A. Forrester, K. F. Hulme, Opt. Quantum Electron. 13, 259 (1981).
    [CrossRef]
  4. M. Nakazawa, M. Tokuda, Y. Morishige, K. Washio, Electron. Lett. 17, 783 (1981).
    [CrossRef]
  5. M. Nakazawa, K. Aoyama, Rev. Electr. Commun. Lab. Jpn. 31, 290 (1983).
  6. J. Auyeung, A. Yariv, IEEE J. Quantum Electron. QE-14, 347 (1978).
    [CrossRef]
  7. P. Healey, D. J. Malyon, Electron. Lett. 18, 862 (1982).
    [CrossRef]
  8. H. Toratani, Y. Morishige, S. Kishida, T. Izumitani, M. Nakazawa, presented at the 44th Autumn Meeting of the Japan Society of Applied Physics, Sendai, September 1983. (English version in preparation.)
  9. H. Kuroda, H. Masuko, S. Maekawa, J. Appl. Phys. 51, 1351 (1980).
    [CrossRef]
  10. S. Kishida, K. Washio, S. Yoshikawa, Y. Kato, Appl. Phys. Lett. 34, 273 (1979).
    [CrossRef]
  11. E. Snitzer, IEEE J. Quantum Electron. QE-4, D360 (1968).
    [CrossRef]
  12. W. G. Wagner, B. Lengnyl, J. Appl. Phys. 34, 2040 (1963).
    [CrossRef]
  13. D. C. Downs, J. E. Murray, W. H. Lowdermilk, IEEE J. Quantum Electron. QE-14, 571 (1978).
    [CrossRef]

1983 (1)

M. Nakazawa, K. Aoyama, Rev. Electr. Commun. Lab. Jpn. 31, 290 (1983).

1982 (2)

V. P. Gapontsv, S. M. Matitsin, A. A. Isineev, V. B. Kravchenko, Opt. Laser Technol. 14, 189 (1982).
[CrossRef]

P. Healey, D. J. Malyon, Electron. Lett. 18, 862 (1982).
[CrossRef]

1981 (2)

P. A. Forrester, K. F. Hulme, Opt. Quantum Electron. 13, 259 (1981).
[CrossRef]

M. Nakazawa, M. Tokuda, Y. Morishige, K. Washio, Electron. Lett. 17, 783 (1981).
[CrossRef]

1980 (1)

H. Kuroda, H. Masuko, S. Maekawa, J. Appl. Phys. 51, 1351 (1980).
[CrossRef]

1979 (1)

S. Kishida, K. Washio, S. Yoshikawa, Y. Kato, Appl. Phys. Lett. 34, 273 (1979).
[CrossRef]

1978 (2)

J. Auyeung, A. Yariv, IEEE J. Quantum Electron. QE-14, 347 (1978).
[CrossRef]

D. C. Downs, J. E. Murray, W. H. Lowdermilk, IEEE J. Quantum Electron. QE-14, 571 (1978).
[CrossRef]

1968 (1)

E. Snitzer, IEEE J. Quantum Electron. QE-4, D360 (1968).
[CrossRef]

1966 (1)

1963 (1)

W. G. Wagner, B. Lengnyl, J. Appl. Phys. 34, 2040 (1963).
[CrossRef]

Aoyama, K.

M. Nakazawa, K. Aoyama, Rev. Electr. Commun. Lab. Jpn. 31, 290 (1983).

Auyeung, J.

J. Auyeung, A. Yariv, IEEE J. Quantum Electron. QE-14, 347 (1978).
[CrossRef]

Downs, D. C.

D. C. Downs, J. E. Murray, W. H. Lowdermilk, IEEE J. Quantum Electron. QE-14, 571 (1978).
[CrossRef]

Forrester, P. A.

P. A. Forrester, K. F. Hulme, Opt. Quantum Electron. 13, 259 (1981).
[CrossRef]

Gapontsv, V. P.

V. P. Gapontsv, S. M. Matitsin, A. A. Isineev, V. B. Kravchenko, Opt. Laser Technol. 14, 189 (1982).
[CrossRef]

Healey, P.

P. Healey, D. J. Malyon, Electron. Lett. 18, 862 (1982).
[CrossRef]

Hulme, K. F.

P. A. Forrester, K. F. Hulme, Opt. Quantum Electron. 13, 259 (1981).
[CrossRef]

Isineev, A. A.

V. P. Gapontsv, S. M. Matitsin, A. A. Isineev, V. B. Kravchenko, Opt. Laser Technol. 14, 189 (1982).
[CrossRef]

Izumitani, T.

H. Toratani, Y. Morishige, S. Kishida, T. Izumitani, M. Nakazawa, presented at the 44th Autumn Meeting of the Japan Society of Applied Physics, Sendai, September 1983. (English version in preparation.)

Kato, Y.

S. Kishida, K. Washio, S. Yoshikawa, Y. Kato, Appl. Phys. Lett. 34, 273 (1979).
[CrossRef]

Kishida, S.

S. Kishida, K. Washio, S. Yoshikawa, Y. Kato, Appl. Phys. Lett. 34, 273 (1979).
[CrossRef]

H. Toratani, Y. Morishige, S. Kishida, T. Izumitani, M. Nakazawa, presented at the 44th Autumn Meeting of the Japan Society of Applied Physics, Sendai, September 1983. (English version in preparation.)

Kravchenko, V. B.

V. P. Gapontsv, S. M. Matitsin, A. A. Isineev, V. B. Kravchenko, Opt. Laser Technol. 14, 189 (1982).
[CrossRef]

Kuroda, H.

H. Kuroda, H. Masuko, S. Maekawa, J. Appl. Phys. 51, 1351 (1980).
[CrossRef]

Lengnyl, B.

W. G. Wagner, B. Lengnyl, J. Appl. Phys. 34, 2040 (1963).
[CrossRef]

Lowdermilk, W. H.

D. C. Downs, J. E. Murray, W. H. Lowdermilk, IEEE J. Quantum Electron. QE-14, 571 (1978).
[CrossRef]

Maekawa, S.

H. Kuroda, H. Masuko, S. Maekawa, J. Appl. Phys. 51, 1351 (1980).
[CrossRef]

Malyon, D. J.

P. Healey, D. J. Malyon, Electron. Lett. 18, 862 (1982).
[CrossRef]

Masuko, H.

H. Kuroda, H. Masuko, S. Maekawa, J. Appl. Phys. 51, 1351 (1980).
[CrossRef]

Matitsin, S. M.

V. P. Gapontsv, S. M. Matitsin, A. A. Isineev, V. B. Kravchenko, Opt. Laser Technol. 14, 189 (1982).
[CrossRef]

Morishige, Y.

M. Nakazawa, M. Tokuda, Y. Morishige, K. Washio, Electron. Lett. 17, 783 (1981).
[CrossRef]

H. Toratani, Y. Morishige, S. Kishida, T. Izumitani, M. Nakazawa, presented at the 44th Autumn Meeting of the Japan Society of Applied Physics, Sendai, September 1983. (English version in preparation.)

Murray, J. E.

D. C. Downs, J. E. Murray, W. H. Lowdermilk, IEEE J. Quantum Electron. QE-14, 571 (1978).
[CrossRef]

Nakazawa, M.

M. Nakazawa, K. Aoyama, Rev. Electr. Commun. Lab. Jpn. 31, 290 (1983).

M. Nakazawa, M. Tokuda, Y. Morishige, K. Washio, Electron. Lett. 17, 783 (1981).
[CrossRef]

H. Toratani, Y. Morishige, S. Kishida, T. Izumitani, M. Nakazawa, presented at the 44th Autumn Meeting of the Japan Society of Applied Physics, Sendai, September 1983. (English version in preparation.)

Snitzer, E.

E. Snitzer, IEEE J. Quantum Electron. QE-4, D360 (1968).
[CrossRef]

E. Snitzer, Appl. Opt. 5, 1487 (1966).
[CrossRef] [PubMed]

Tokuda, M.

M. Nakazawa, M. Tokuda, Y. Morishige, K. Washio, Electron. Lett. 17, 783 (1981).
[CrossRef]

Toratani, H.

H. Toratani, Y. Morishige, S. Kishida, T. Izumitani, M. Nakazawa, presented at the 44th Autumn Meeting of the Japan Society of Applied Physics, Sendai, September 1983. (English version in preparation.)

Wagner, W. G.

W. G. Wagner, B. Lengnyl, J. Appl. Phys. 34, 2040 (1963).
[CrossRef]

Washio, K.

M. Nakazawa, M. Tokuda, Y. Morishige, K. Washio, Electron. Lett. 17, 783 (1981).
[CrossRef]

S. Kishida, K. Washio, S. Yoshikawa, Y. Kato, Appl. Phys. Lett. 34, 273 (1979).
[CrossRef]

Yariv, A.

J. Auyeung, A. Yariv, IEEE J. Quantum Electron. QE-14, 347 (1978).
[CrossRef]

Yoshikawa, S.

S. Kishida, K. Washio, S. Yoshikawa, Y. Kato, Appl. Phys. Lett. 34, 273 (1979).
[CrossRef]

Appl. Opt. (1)

Appl. Phys. Lett. (1)

S. Kishida, K. Washio, S. Yoshikawa, Y. Kato, Appl. Phys. Lett. 34, 273 (1979).
[CrossRef]

Electron. Lett. (2)

M. Nakazawa, M. Tokuda, Y. Morishige, K. Washio, Electron. Lett. 17, 783 (1981).
[CrossRef]

P. Healey, D. J. Malyon, Electron. Lett. 18, 862 (1982).
[CrossRef]

IEEE J. Quantum Electron. (3)

J. Auyeung, A. Yariv, IEEE J. Quantum Electron. QE-14, 347 (1978).
[CrossRef]

E. Snitzer, IEEE J. Quantum Electron. QE-4, D360 (1968).
[CrossRef]

D. C. Downs, J. E. Murray, W. H. Lowdermilk, IEEE J. Quantum Electron. QE-14, 571 (1978).
[CrossRef]

J. Appl. Phys. (2)

W. G. Wagner, B. Lengnyl, J. Appl. Phys. 34, 2040 (1963).
[CrossRef]

H. Kuroda, H. Masuko, S. Maekawa, J. Appl. Phys. 51, 1351 (1980).
[CrossRef]

Opt. Laser Technol. (1)

V. P. Gapontsv, S. M. Matitsin, A. A. Isineev, V. B. Kravchenko, Opt. Laser Technol. 14, 189 (1982).
[CrossRef]

Opt. Quantum Electron. (1)

P. A. Forrester, K. F. Hulme, Opt. Quantum Electron. 13, 259 (1981).
[CrossRef]

Rev. Electr. Commun. Lab. Jpn. (1)

M. Nakazawa, K. Aoyama, Rev. Electr. Commun. Lab. Jpn. 31, 290 (1983).

Other (1)

H. Toratani, Y. Morishige, S. Kishida, T. Izumitani, M. Nakazawa, presented at the 44th Autumn Meeting of the Japan Society of Applied Physics, Sendai, September 1983. (English version in preparation.)

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Figures (4)

Fig. 1
Fig. 1

Oscillator configuration.

Fig. 2
Fig. 2

Q-switch pulse length versus pump energy characteristics. Dotted line, from Q-switching rate-equation model fitted with internal resonator loss as an adjustable parameter. Best-fit resonator loss, 2.5%.

Fig. 3
Fig. 3

Output-energy fluctuation versus output-energy characteristics. Filled and open circles are plotted for measured fluctuations for conventional and stabilized cases, respectively. Calculated curves are derived from Eq. (1).

Fig. 4
Fig. 4

Rod focal length versus input-energy characteristics.

Equations (1)

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η = C / ( 1 P th / P in ) ,

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