Abstract

We synchronize two passively mode-locked erbium-doped fiber lasers by adjusting only the cavity length to correct both the repetition rate and the phase. The interlaser jitter is less than 6 ps (1.3 times the pulse width) and is extracted from the cross correlation of the two lasers. The lock can be maintained for extended periods of time. These results are obtained by use of a novel acousto-optic-modulator–grating scheme, which provides an equivalent of 300 μm in cavity length tuning with a bandwidth of 10 kHz. These parameters are 30 times the length and 10 times the bandwidth of a typical piezoelectric transducer.

© 1996 Optical Society of America

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  1. O. Kamatani, S. Kawanishi, M. SaruwatariElectron. Lett. 3, 807 (1994).
    [CrossRef]
  2. K. S. Smith, J. K. LucekElectron. Lett. 28, 1814 (1992); D. M. PatrickElectron. Lett. 30, 43 (1994).
    [CrossRef]
  3. S. Kawanishi, M. SaruwatariJ. Lightwave Technol. 11, 2123 (1993).
    [CrossRef]
  4. D. E. Spence, W. E. Sleat, J. M. Evans, W. Sibbett, J. D. KafkaOpt. Commun. 101, 286 (1993).
    [CrossRef]
  5. M. J. W. Rodwell, D. M. Bloom, K. J. WeingartenIEEE J. Quantum Electron. 25, 817 (1989), and references therein.
    [CrossRef]

1994 (1)

O. Kamatani, S. Kawanishi, M. SaruwatariElectron. Lett. 3, 807 (1994).
[CrossRef]

1993 (2)

S. Kawanishi, M. SaruwatariJ. Lightwave Technol. 11, 2123 (1993).
[CrossRef]

D. E. Spence, W. E. Sleat, J. M. Evans, W. Sibbett, J. D. KafkaOpt. Commun. 101, 286 (1993).
[CrossRef]

1992 (1)

K. S. Smith, J. K. LucekElectron. Lett. 28, 1814 (1992); D. M. PatrickElectron. Lett. 30, 43 (1994).
[CrossRef]

1989 (1)

M. J. W. Rodwell, D. M. Bloom, K. J. WeingartenIEEE J. Quantum Electron. 25, 817 (1989), and references therein.
[CrossRef]

Bloom, D. M.

M. J. W. Rodwell, D. M. Bloom, K. J. WeingartenIEEE J. Quantum Electron. 25, 817 (1989), and references therein.
[CrossRef]

Evans, J. M.

D. E. Spence, W. E. Sleat, J. M. Evans, W. Sibbett, J. D. KafkaOpt. Commun. 101, 286 (1993).
[CrossRef]

Kafka, J. D.

D. E. Spence, W. E. Sleat, J. M. Evans, W. Sibbett, J. D. KafkaOpt. Commun. 101, 286 (1993).
[CrossRef]

Kamatani, O.

O. Kamatani, S. Kawanishi, M. SaruwatariElectron. Lett. 3, 807 (1994).
[CrossRef]

Kawanishi, S.

O. Kamatani, S. Kawanishi, M. SaruwatariElectron. Lett. 3, 807 (1994).
[CrossRef]

S. Kawanishi, M. SaruwatariJ. Lightwave Technol. 11, 2123 (1993).
[CrossRef]

Lucek, J. K.

K. S. Smith, J. K. LucekElectron. Lett. 28, 1814 (1992); D. M. PatrickElectron. Lett. 30, 43 (1994).
[CrossRef]

Rodwell, M. J. W.

M. J. W. Rodwell, D. M. Bloom, K. J. WeingartenIEEE J. Quantum Electron. 25, 817 (1989), and references therein.
[CrossRef]

Saruwatari, M.

O. Kamatani, S. Kawanishi, M. SaruwatariElectron. Lett. 3, 807 (1994).
[CrossRef]

S. Kawanishi, M. SaruwatariJ. Lightwave Technol. 11, 2123 (1993).
[CrossRef]

Sibbett, W.

D. E. Spence, W. E. Sleat, J. M. Evans, W. Sibbett, J. D. KafkaOpt. Commun. 101, 286 (1993).
[CrossRef]

Sleat, W. E.

D. E. Spence, W. E. Sleat, J. M. Evans, W. Sibbett, J. D. KafkaOpt. Commun. 101, 286 (1993).
[CrossRef]

Smith, K. S.

K. S. Smith, J. K. LucekElectron. Lett. 28, 1814 (1992); D. M. PatrickElectron. Lett. 30, 43 (1994).
[CrossRef]

Spence, D. E.

D. E. Spence, W. E. Sleat, J. M. Evans, W. Sibbett, J. D. KafkaOpt. Commun. 101, 286 (1993).
[CrossRef]

Weingarten, K. J.

M. J. W. Rodwell, D. M. Bloom, K. J. WeingartenIEEE J. Quantum Electron. 25, 817 (1989), and references therein.
[CrossRef]

Electron. Lett. (2)

O. Kamatani, S. Kawanishi, M. SaruwatariElectron. Lett. 3, 807 (1994).
[CrossRef]

K. S. Smith, J. K. LucekElectron. Lett. 28, 1814 (1992); D. M. PatrickElectron. Lett. 30, 43 (1994).
[CrossRef]

IEEE J. Quantum Electron. (1)

M. J. W. Rodwell, D. M. Bloom, K. J. WeingartenIEEE J. Quantum Electron. 25, 817 (1989), and references therein.
[CrossRef]

J. Lightwave Technol. (1)

S. Kawanishi, M. SaruwatariJ. Lightwave Technol. 11, 2123 (1993).
[CrossRef]

Opt. Commun. (1)

D. E. Spence, W. E. Sleat, J. M. Evans, W. Sibbett, J. D. KafkaOpt. Commun. 101, 286 (1993).
[CrossRef]

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Figures (3)

Fig. 1
Fig. 1

Schematic diagram of the experimental setup. The lower part depicts in more detail the configuration of the slave laser. LPF, low-pass filter; SA, saturable absorber; WDM, wavelength-dependent multiplexes.

Fig. 2
Fig. 2

Comparison of noise characteristics of an erbium-doped fiber laser with and without locking to an electronic synthesizer: (a) power spectra measured at the tenth harmonic of the laser fundamental, (b) timing jitter calculated from the power spectra in (a) and that measured at the fundamental.

Fig. 3
Fig. 3

Cross correlation of the two synchronized EDFL’s.

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