Abstract

We propose and demonstrate a novel single-longitudinal-mode (SLM) dual-wavelength erbium-doped fiber ring laser incorporating a semiconductor optical amplifier. The SOA biased in its low-gain regime greatly reduces the gain competition of the two wavelengths. The stable SLM operation is guaranteed by a passive triple-ring cavity and a fiber Fabry–Perot filter. The dual-wavelength output with a 40GHz wavelength spacing is switchable in the range of 15331565.4nm.

© 2008 Optical Society of America

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References

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2007 (3)

D. Chen, H. Ou, H. Fu, S. Qin, and S. Gao, Laser Phys. Lett. 4, 287 (2007).
[CrossRef]

J. Sun, X. Yuan, X. Zhang, and D. Huang, Opt. Commun. 273, 231 (2007).
[CrossRef]

C. H. Yeh, T. T. Huang, H. C. Chien, C. H. Ko, and S. Chi, Opt. Express 15, 382 (2007).
[CrossRef] [PubMed]

2005 (4)

2004 (2)

U. Sharma, C. S. Kim, and J. U. Kang, IEEE Photon. Technol. Lett. 17, 1277 (2004).
[CrossRef]

J. Liu, J. P. Yao, J. Yao, and T. H. Yeap, IEEE Photon. Technol. Lett. 16, 1020 (2004).
[CrossRef]

1996 (1)

G. J. Cowle and D. Y. Stepanov, IEEE Photon. Technol. Lett. 8, 1465 (1996).
[CrossRef]

IEEE Photon. Technol. Lett. (4)

G. J. Cowle and D. Y. Stepanov, IEEE Photon. Technol. Lett. 8, 1465 (1996).
[CrossRef]

U. Sharma, C. S. Kim, and J. U. Kang, IEEE Photon. Technol. Lett. 17, 1277 (2004).
[CrossRef]

J. Liu, J. P. Yao, J. Yao, and T. H. Yeap, IEEE Photon. Technol. Lett. 16, 1020 (2004).
[CrossRef]

Z. Lu and C. P. Grover, IEEE Photon. Technol. Lett. 17, 22 (2005).
[CrossRef]

J. Lightwave Technol. (1)

Laser Phys. Lett. (1)

D. Chen, H. Ou, H. Fu, S. Qin, and S. Gao, Laser Phys. Lett. 4, 287 (2007).
[CrossRef]

Opt. Commun. (1)

J. Sun, X. Yuan, X. Zhang, and D. Huang, Opt. Commun. 273, 231 (2007).
[CrossRef]

Opt. Express (1)

Opt. Lett. (2)

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Figures (5)

Fig. 1
Fig. 1

Schematic of the proposed SLM dual-wavelength fiber ring laser. OC, optical coupler; PC, polarization controller; EDFA, erbium-doped fiber amplifier; SOA, semiconductor optical amplifier; OBPF, optical bandpass filter; FFPF, fiber Fabry–Perot filter.

Fig. 2
Fig. 2

(a) Repeated scanning spectrum with a time interval of 2 min . (b) Electrical spectrum of the beating signals. Inset, 10 GHz optical clock generated by externally modulating one wavelength of the laser.

Fig. 3
Fig. 3

Optical spectra while OBPF was tuned from 1533 to 1565.4 nm .

Fig. 4
Fig. 4

Electrical spectra and 10 GHz optical clocks generated by externally modulating one wavelength of the laser. (a), (b) Ring-2 and Ring-3 are disconnected; (c), (d) only Ring-3 is disconnected.

Fig. 5
Fig. 5

Electrical spectra under different driven currents of SOA; (a) 60, (b) 80, (c) 110, and (d) 150 mA .

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