Abstract

The stable operation of a high-repetition-rate dispersion-tuned harmonically mode-locked erbium-doped fiber ring laser is reported for the first time to our knowledge. The dispersion causes a round-trip delay that varies with wavelength, so synchronism with the amplitude modulator is passively maintained at a wavelength that is synchronous with the modulation frequency (external clock). One can tune the laser by simply changing the cavity length. A 10-GHz train of transform-limited, 6.5-ps duration pulses is obtained over an 8-nm tuning range. Pulse energy equalization can be achieved by the interplay of normal dispersion, self-phase modulation, and amplitude modulation.

© 1996 Optical Society of America

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References

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  1. R. H. Stolen, C. Lin, R. K. Jain, Appl. Phys. Lett. 30, 340 (1977).
    [CrossRef]
  2. P. N. Kean, J. W. D. Gray, I. Bennion, N. J. Doran, Electron. Lett. 30, 2133 (1995).
    [CrossRef]
  3. A. Takada, H. Miyazawa, Electron. Lett. 26, 216 (1990).
    [CrossRef]
  4. X. Shan, D. M. Spirit, Electron. Lett. 29, 979 (1993).
    [CrossRef]
  5. G. T. Harvey, L. F. Mollenauer, Opt. Lett. 18, 107 (1993).
    [CrossRef] [PubMed]
  6. H. Takara, S. Kawanishi, M. Saruwatari, Electron. Lett. 31, 292 (1995).
    [CrossRef]
  7. M. Nakazawa, E. Yoshida, Y. Kimura, Electron. Lett. 30, 1603 (1994).
    [CrossRef]
  8. A. Ellis, K. Smith, D. Patrick, Electron. Lett. 29, 1323 (1993).
    [CrossRef]
  9. H. A. Haus, Waves and Fields In Optoelectronics (Prentice-Hall, Englewood Cliffs, N.J., 1984).
  10. C. R. Doerr, H. A. Haus, E. P. Ippen, M. Shirasaki, K. Tamura, Opt. Lett. 19, 31 (1994).
    [CrossRef] [PubMed]
  11. A. Djupsjobacka, IEEE Photon. Technol. Lett. 4, 41 (1992).
    [CrossRef]
  12. M. Nakazawa, K. Tamura, E. Yoshida, Electron. Lett. 32, 461 (1996).
    [CrossRef]

1996 (1)

M. Nakazawa, K. Tamura, E. Yoshida, Electron. Lett. 32, 461 (1996).
[CrossRef]

1995 (2)

P. N. Kean, J. W. D. Gray, I. Bennion, N. J. Doran, Electron. Lett. 30, 2133 (1995).
[CrossRef]

H. Takara, S. Kawanishi, M. Saruwatari, Electron. Lett. 31, 292 (1995).
[CrossRef]

1994 (2)

1993 (3)

G. T. Harvey, L. F. Mollenauer, Opt. Lett. 18, 107 (1993).
[CrossRef] [PubMed]

A. Ellis, K. Smith, D. Patrick, Electron. Lett. 29, 1323 (1993).
[CrossRef]

X. Shan, D. M. Spirit, Electron. Lett. 29, 979 (1993).
[CrossRef]

1992 (1)

A. Djupsjobacka, IEEE Photon. Technol. Lett. 4, 41 (1992).
[CrossRef]

1990 (1)

A. Takada, H. Miyazawa, Electron. Lett. 26, 216 (1990).
[CrossRef]

1977 (1)

R. H. Stolen, C. Lin, R. K. Jain, Appl. Phys. Lett. 30, 340 (1977).
[CrossRef]

Bennion, I.

P. N. Kean, J. W. D. Gray, I. Bennion, N. J. Doran, Electron. Lett. 30, 2133 (1995).
[CrossRef]

Djupsjobacka, A.

A. Djupsjobacka, IEEE Photon. Technol. Lett. 4, 41 (1992).
[CrossRef]

Doerr, C. R.

Doran, N. J.

P. N. Kean, J. W. D. Gray, I. Bennion, N. J. Doran, Electron. Lett. 30, 2133 (1995).
[CrossRef]

Ellis, A.

A. Ellis, K. Smith, D. Patrick, Electron. Lett. 29, 1323 (1993).
[CrossRef]

Gray, J. W. D.

P. N. Kean, J. W. D. Gray, I. Bennion, N. J. Doran, Electron. Lett. 30, 2133 (1995).
[CrossRef]

Harvey, G. T.

Haus, H. A.

C. R. Doerr, H. A. Haus, E. P. Ippen, M. Shirasaki, K. Tamura, Opt. Lett. 19, 31 (1994).
[CrossRef] [PubMed]

H. A. Haus, Waves and Fields In Optoelectronics (Prentice-Hall, Englewood Cliffs, N.J., 1984).

Ippen, E. P.

Jain, R. K.

R. H. Stolen, C. Lin, R. K. Jain, Appl. Phys. Lett. 30, 340 (1977).
[CrossRef]

Kawanishi, S.

H. Takara, S. Kawanishi, M. Saruwatari, Electron. Lett. 31, 292 (1995).
[CrossRef]

Kean, P. N.

P. N. Kean, J. W. D. Gray, I. Bennion, N. J. Doran, Electron. Lett. 30, 2133 (1995).
[CrossRef]

Kimura, Y.

M. Nakazawa, E. Yoshida, Y. Kimura, Electron. Lett. 30, 1603 (1994).
[CrossRef]

Lin, C.

R. H. Stolen, C. Lin, R. K. Jain, Appl. Phys. Lett. 30, 340 (1977).
[CrossRef]

Miyazawa, H.

A. Takada, H. Miyazawa, Electron. Lett. 26, 216 (1990).
[CrossRef]

Mollenauer, L. F.

Nakazawa, M.

M. Nakazawa, K. Tamura, E. Yoshida, Electron. Lett. 32, 461 (1996).
[CrossRef]

M. Nakazawa, E. Yoshida, Y. Kimura, Electron. Lett. 30, 1603 (1994).
[CrossRef]

Patrick, D.

A. Ellis, K. Smith, D. Patrick, Electron. Lett. 29, 1323 (1993).
[CrossRef]

Saruwatari, M.

H. Takara, S. Kawanishi, M. Saruwatari, Electron. Lett. 31, 292 (1995).
[CrossRef]

Shan, X.

X. Shan, D. M. Spirit, Electron. Lett. 29, 979 (1993).
[CrossRef]

Shirasaki, M.

Smith, K.

A. Ellis, K. Smith, D. Patrick, Electron. Lett. 29, 1323 (1993).
[CrossRef]

Spirit, D. M.

X. Shan, D. M. Spirit, Electron. Lett. 29, 979 (1993).
[CrossRef]

Stolen, R. H.

R. H. Stolen, C. Lin, R. K. Jain, Appl. Phys. Lett. 30, 340 (1977).
[CrossRef]

Takada, A.

A. Takada, H. Miyazawa, Electron. Lett. 26, 216 (1990).
[CrossRef]

Takara, H.

H. Takara, S. Kawanishi, M. Saruwatari, Electron. Lett. 31, 292 (1995).
[CrossRef]

Tamura, K.

Yoshida, E.

M. Nakazawa, K. Tamura, E. Yoshida, Electron. Lett. 32, 461 (1996).
[CrossRef]

M. Nakazawa, E. Yoshida, Y. Kimura, Electron. Lett. 30, 1603 (1994).
[CrossRef]

Appl. Phys. Lett. (1)

R. H. Stolen, C. Lin, R. K. Jain, Appl. Phys. Lett. 30, 340 (1977).
[CrossRef]

Electron. Lett. (7)

P. N. Kean, J. W. D. Gray, I. Bennion, N. J. Doran, Electron. Lett. 30, 2133 (1995).
[CrossRef]

A. Takada, H. Miyazawa, Electron. Lett. 26, 216 (1990).
[CrossRef]

X. Shan, D. M. Spirit, Electron. Lett. 29, 979 (1993).
[CrossRef]

H. Takara, S. Kawanishi, M. Saruwatari, Electron. Lett. 31, 292 (1995).
[CrossRef]

M. Nakazawa, E. Yoshida, Y. Kimura, Electron. Lett. 30, 1603 (1994).
[CrossRef]

A. Ellis, K. Smith, D. Patrick, Electron. Lett. 29, 1323 (1993).
[CrossRef]

M. Nakazawa, K. Tamura, E. Yoshida, Electron. Lett. 32, 461 (1996).
[CrossRef]

IEEE Photon. Technol. Lett. (1)

A. Djupsjobacka, IEEE Photon. Technol. Lett. 4, 41 (1992).
[CrossRef]

Opt. Lett. (2)

Other (1)

H. A. Haus, Waves and Fields In Optoelectronics (Prentice-Hall, Englewood Cliffs, N.J., 1984).

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Figures (3)

Fig. 1
Fig. 1

Experimental configuration of the dispersion-tuned HML fiber laser: LD, laser diode; AM, amplitude modulator; PC, polarization controller; WDM, wavelength-division multiplexer; SMF, single-mode fiber.

Fig. 2
Fig. 2

(a) Pulse autocorrelation before (dotted curve) and after (solid curve) chirp compensation. The pulse width, assuming a Gaussian shape, is 6.5 ps after chirp compensation. (b) Output spectrum (solid curve) and Gaussian fit (dotted curve). The spectral width is 0.54 nm; the mode spacing is 10 GHz; the center wavelength is 1557.7 nm. (c) Spectrum measured on scanning Fabry–Perot spectrometer. (d) Rf spectrum at 10 GHz on a 100-MHz span. The vertical scale is 10 dB/division.

Fig. 3
Fig. 3

(Top) Tuning characteristics with adjustment of the delay line. (Bottom) Tuning characteristics with adjustment of the rf.

Equations (5)

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[ - j D n d 2 d t 2 + g - l + j ψ - M 2 ( ω m t ) 2 ] a = 0.
a ( t ) = A 0 exp [ - ( t 2 / 2 τ c 2 ) ] ,
1 τ c 2 = 1 2 ( M ω m 2 / D n ) 1 / 2 ( 1 ± j ) .
g = l + ½ ( M ω m 2 D n ) 1 / 2 l p ,
g = l + ½ ( M ω m 2 D n + κ eff A 0 2 ) 1 / 2 l p ,

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