Abstract

The recently introduced harmonic injection locking is a method for generating pulse trains at high repetition rates from passively mode-locked lasers. We report the simultaneous injection locking of two spectral bands in an erbium-doped fiber laser by injection of two spectrally distinct and temporally synchronized pulse trains. The injection-locked laser simultaneously produced pulses at wavelengths of 1.53 and 1.55 μm, each at a 7.5-GHz repetition rate and with a pulse width of 10 ps. We compared the experimental results with those of a passively mode-locked laser.

© 1996 Optical Society of America

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References

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  1. T. Morioka, S. Kawanishi, H. Takara, O. Kamatani, M. Yamada, T. Kanamori, K. Uchiyama, M. Saruwatari, Electron Lett. 32, 468 (1996); R. Ludwig, W. Pieper, R. Langenhorst, H. G. Weber, presented at the 21st European Conference on Optical Communication, Brussels, September 17–21, 1995.
    [CrossRef]
  2. M. Margalit, M. Orenstein, G. Eisenstein, Opt. Lett. 20, 1791 (1995).
    [CrossRef] [PubMed]
  3. M. Margalit, M. Orenstein, G. Eisenstein, Opt. Lett. 20, 1877 (1995).
    [CrossRef] [PubMed]
  4. E. Desurvire, Erbium Doped Fiber Amplifiers: Principles and Applications (Wiley, New York, 1994).
  5. M. Margalit, M. Orenstein, H. A. Haus, IEEE J. Quantum Electron. 32, 155 (1996).
    [CrossRef]
  6. G. Agrawal, Nonlinear Fiber Optics (Academic, San Diego, Calif., 1989).
  7. H. A. Haus, J. G. Fujimoto, E. P. Ippen, J. Opt. Soc. Am. B 8, 2068 (1991).
    [CrossRef]
  8. A. E. Seigman, Lasers (University Science, Mill Valley, Calif., 1986).

1996 (2)

T. Morioka, S. Kawanishi, H. Takara, O. Kamatani, M. Yamada, T. Kanamori, K. Uchiyama, M. Saruwatari, Electron Lett. 32, 468 (1996); R. Ludwig, W. Pieper, R. Langenhorst, H. G. Weber, presented at the 21st European Conference on Optical Communication, Brussels, September 17–21, 1995.
[CrossRef]

M. Margalit, M. Orenstein, H. A. Haus, IEEE J. Quantum Electron. 32, 155 (1996).
[CrossRef]

1995 (2)

1991 (1)

Agrawal, G.

G. Agrawal, Nonlinear Fiber Optics (Academic, San Diego, Calif., 1989).

Desurvire, E.

E. Desurvire, Erbium Doped Fiber Amplifiers: Principles and Applications (Wiley, New York, 1994).

Eisenstein, G.

Fujimoto, J. G.

Haus, H. A.

M. Margalit, M. Orenstein, H. A. Haus, IEEE J. Quantum Electron. 32, 155 (1996).
[CrossRef]

H. A. Haus, J. G. Fujimoto, E. P. Ippen, J. Opt. Soc. Am. B 8, 2068 (1991).
[CrossRef]

Ippen, E. P.

Kamatani, O.

T. Morioka, S. Kawanishi, H. Takara, O. Kamatani, M. Yamada, T. Kanamori, K. Uchiyama, M. Saruwatari, Electron Lett. 32, 468 (1996); R. Ludwig, W. Pieper, R. Langenhorst, H. G. Weber, presented at the 21st European Conference on Optical Communication, Brussels, September 17–21, 1995.
[CrossRef]

Kanamori, T.

T. Morioka, S. Kawanishi, H. Takara, O. Kamatani, M. Yamada, T. Kanamori, K. Uchiyama, M. Saruwatari, Electron Lett. 32, 468 (1996); R. Ludwig, W. Pieper, R. Langenhorst, H. G. Weber, presented at the 21st European Conference on Optical Communication, Brussels, September 17–21, 1995.
[CrossRef]

Kawanishi, S.

T. Morioka, S. Kawanishi, H. Takara, O. Kamatani, M. Yamada, T. Kanamori, K. Uchiyama, M. Saruwatari, Electron Lett. 32, 468 (1996); R. Ludwig, W. Pieper, R. Langenhorst, H. G. Weber, presented at the 21st European Conference on Optical Communication, Brussels, September 17–21, 1995.
[CrossRef]

Margalit, M.

Morioka, T.

T. Morioka, S. Kawanishi, H. Takara, O. Kamatani, M. Yamada, T. Kanamori, K. Uchiyama, M. Saruwatari, Electron Lett. 32, 468 (1996); R. Ludwig, W. Pieper, R. Langenhorst, H. G. Weber, presented at the 21st European Conference on Optical Communication, Brussels, September 17–21, 1995.
[CrossRef]

Orenstein, M.

Saruwatari, M.

T. Morioka, S. Kawanishi, H. Takara, O. Kamatani, M. Yamada, T. Kanamori, K. Uchiyama, M. Saruwatari, Electron Lett. 32, 468 (1996); R. Ludwig, W. Pieper, R. Langenhorst, H. G. Weber, presented at the 21st European Conference on Optical Communication, Brussels, September 17–21, 1995.
[CrossRef]

Seigman, A. E.

A. E. Seigman, Lasers (University Science, Mill Valley, Calif., 1986).

Takara, H.

T. Morioka, S. Kawanishi, H. Takara, O. Kamatani, M. Yamada, T. Kanamori, K. Uchiyama, M. Saruwatari, Electron Lett. 32, 468 (1996); R. Ludwig, W. Pieper, R. Langenhorst, H. G. Weber, presented at the 21st European Conference on Optical Communication, Brussels, September 17–21, 1995.
[CrossRef]

Uchiyama, K.

T. Morioka, S. Kawanishi, H. Takara, O. Kamatani, M. Yamada, T. Kanamori, K. Uchiyama, M. Saruwatari, Electron Lett. 32, 468 (1996); R. Ludwig, W. Pieper, R. Langenhorst, H. G. Weber, presented at the 21st European Conference on Optical Communication, Brussels, September 17–21, 1995.
[CrossRef]

Yamada, M.

T. Morioka, S. Kawanishi, H. Takara, O. Kamatani, M. Yamada, T. Kanamori, K. Uchiyama, M. Saruwatari, Electron Lett. 32, 468 (1996); R. Ludwig, W. Pieper, R. Langenhorst, H. G. Weber, presented at the 21st European Conference on Optical Communication, Brussels, September 17–21, 1995.
[CrossRef]

Electron Lett. (1)

T. Morioka, S. Kawanishi, H. Takara, O. Kamatani, M. Yamada, T. Kanamori, K. Uchiyama, M. Saruwatari, Electron Lett. 32, 468 (1996); R. Ludwig, W. Pieper, R. Langenhorst, H. G. Weber, presented at the 21st European Conference on Optical Communication, Brussels, September 17–21, 1995.
[CrossRef]

IEEE J. Quantum Electron. (1)

M. Margalit, M. Orenstein, H. A. Haus, IEEE J. Quantum Electron. 32, 155 (1996).
[CrossRef]

J. Opt. Soc. Am. B (1)

Opt. Lett. (2)

Other (3)

E. Desurvire, Erbium Doped Fiber Amplifiers: Principles and Applications (Wiley, New York, 1994).

A. E. Seigman, Lasers (University Science, Mill Valley, Calif., 1986).

G. Agrawal, Nonlinear Fiber Optics (Academic, San Diego, Calif., 1989).

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Figures (4)

Fig. 1
Fig. 1

Experimental setup of the two-color harmonic injection locking.

Fig. 2
Fig. 2

Optical spectrum of the injection-locked fiber laser operating simultaneously at 1.53 and 1.55 μm.

Fig. 3
Fig. 3

Temporal output of the injection-locked fiber laser, operating at a central wavelength of I, 1.53 μm; II, 1.55 μm; and III, 1.53 and 1.55 μm simultaneously.

Fig. 4
Fig. 4

Simulation results: (a) temporal output of locked laser pulses at I, f1 = −2 THz; II, f2 = 2 THz. (b) Optical spectra of the laser gain, pulse output for pulses I and II, and injected signal.

Equations (4)

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d a n / d T = j ( ω n ω n i ) a n jn 2 Da n + GBW ( ω ) a n La n + i n α i a i + κ 1 f n 1 + κ 2 f n 2 ,
G = G 0 / ( 1 + P av / P sat ) ,
T R d A d T = jD d 2 A d 2 t + g ( 1 + 1 Ω g 2 d 2 d 2 t ) A lA + j η | A | 2 A + cos [ γ ( A 0 2 A 2 ) ] A + S ( t ) + κ F ( t ) ,
F ( t ) = exp { [ t mod ( T , T I ) T I / 2 ] 2 τ 2 + j 2 π f 1 t } + exp { [ t mod ( T , T I ) Δ t T I / 2 ] 2 τ 2 + j 2 π f 2 t } ,

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