Abstract

By using a tunable-ratio optical coupler (TROC) to adjust the wavelength dependent intra-cavity loss, a L-band mode-locked erbium-doped fiber-ring laser (ML-EDFL) is demonstrated for generating wavelength-tunable femtosecond pulses. The change of output coupling ratio introduces different intra-cavity loss and shifts the peak of mode-locked gain profile to provide continuous detuning on wavelength of the ML-EDFL. A maximum tuning range of about 40 nm (from 1565.1 to 1605.3 nm) by decreasing the output coupling ratio from 95% to 5% is obtained, corresponding to a wavelength tuning slope of 2.25 nm/dB. The ML-EDFL exhibits a super-mode suppressing ratio as high as 47 dB and a pulsewidth of <5 ps at repetition frequency of 1 GHz. Nearly transform-limited pulsewidth of 580 fs is generated by linear dispersion compressing the EDFL pulses with a 32.5m-long single-mode fiber under an output coupling ratio of 10%.

© 2007 Optical Society of America

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References

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  1. M. X. Ma, M. Nissov, H. Li, M. A. Mills, G. Yang, H. D. Kidorf, A. Srivastava, J. Sulhoff, C. Wolf, Y. Sun, and D. W. Peckhan, "765 Gb/s over 2,000 km transmission using C- and L-band erbium doped fiber amplifiers," Paper PD, OFC99, Feb. 1999, (San Diego, USA).
  2. H. Ono, M. Yamada, T. Kanamri, S. Sudo, and Y. Ohishi, "1.58-μm band gain-flattened erbium-doped fiber amplifiers for WDM transmission systems," J. Lightwave Technol. 17, 490-496 (1999).
    [CrossRef]
  3. L. Duan, M. Dagenais, and J. Goldhar, "Smoothly wavelength-tunable picosecond pulse generation using a harmonically mode-locked fiber ring laser," J. Lightwave Technol,  21, 930-937 (2003).
    [CrossRef]
  4. L. Duan, C. J. K. Richardson, Z. Hu, M. Dagenais, and J. Goldhar, "A stable smoothly wavelength-tunable picosecond pulse generator," IEEE Photon. Technol. Lett. 14, 840-842 (2002).
    [CrossRef]
  5. S. Li and K. T. Chan, "Electrical wavelength-tunable actively mode-locked fiber ring laser with a linearly chirped fiber Bragg grating," IEEE Photon. Technol. Lett. 10, 799-801 (1998).
    [CrossRef]
  6. J. He and K. T. Chan, "Generation and wavelength switching of picosecond pulses by optically modulating a semiconductor optical amplifier in a fiber laser with optical delay line," IEEE Photon. Technol. Lett. 15, 798-800 (2003).
    [CrossRef]
  7. S. Li, K. T. Chan, H. Ding, and Z. Fang, "Electrical wavelength switching of mode-locked Er-doped fiber ring laser with two fiber gratings," Proc. Conf. Lasers Electo-Optics 11, 473-474 (1997).
  8. K. Chan and C. Shu, "Electrical switching of wavelength in actively mode-locked fiber laser incorporating fiber Bragg gratings," Electron. Lett,  36, 42-43 (2000).
    [CrossRef]
  9. S. W. Chan and C. Shu, "Harmonically mode-locked fiber laser with optically selectable wavelength," IEEE Photon. Technol. Lett. 14, 771-773 (2002).
    [CrossRef]
  10. D. Zhao, K. T. Chan, Y. Liu, L. Zhang, and I. Bennion, "Wavelength-switched optical pulse generation in a fiber ring laser with a Fabry-Perot semiconductor modulator and a sampled fiber Bragg grating," IEEE Photon. Technol. Lett. 13, 191-193 (2001).
    [CrossRef]
  11. M.-Y. Jeon, H. K. Lee, J. T. Ahn, D. S. Lim, D. I. Chang, K. H. Kim, and S. B. Kang, "Wideband wavelength tunable mode-locked fibre laser over 1557-1607 nm," Electron. Lett. 36, 300-302 (2000).
    [CrossRef]
  12. S. Yang, Z. Li, X. Dong, S. Yuan, G. Kai, and Q. Zhao, "Generation of wavelength-switched optical pulse from a fiber ring laser with an F-P semiconductor modulator and a HiBi fiber-loop mirror," IEEE Photon. Technol. Lett. 14, 774-776 (2002).
    [CrossRef]
  13. X. Feng, Y. Liu, H. Zhang, Y. Li, S. Yuan, G. Kai, W. Zhang, and X. Dong, "Wide wavelength-switched optical-pulse generation in an L-band mode-locked erbium-doped fiber laser," Microwave Opt. Technol. Lett. 44, 196-199 (2005).
    [CrossRef]
  14. G.-R. Lin, J.-Y. Chang, Y.-S. Liao, and H.-H. Lu, "L-band Erbium-doped fiber laser with coupling ratio controlled wavelength tunability," Opt. Express 14, 9743-9749 (2006).
    [CrossRef] [PubMed]
  15. G. P. Agrawal, Nonlinear Fiber Optics (Academic Press, San Diego, 2001), Chap. 3.

2006 (1)

2005 (1)

X. Feng, Y. Liu, H. Zhang, Y. Li, S. Yuan, G. Kai, W. Zhang, and X. Dong, "Wide wavelength-switched optical-pulse generation in an L-band mode-locked erbium-doped fiber laser," Microwave Opt. Technol. Lett. 44, 196-199 (2005).
[CrossRef]

2003 (2)

L. Duan, M. Dagenais, and J. Goldhar, "Smoothly wavelength-tunable picosecond pulse generation using a harmonically mode-locked fiber ring laser," J. Lightwave Technol,  21, 930-937 (2003).
[CrossRef]

J. He and K. T. Chan, "Generation and wavelength switching of picosecond pulses by optically modulating a semiconductor optical amplifier in a fiber laser with optical delay line," IEEE Photon. Technol. Lett. 15, 798-800 (2003).
[CrossRef]

2002 (3)

L. Duan, C. J. K. Richardson, Z. Hu, M. Dagenais, and J. Goldhar, "A stable smoothly wavelength-tunable picosecond pulse generator," IEEE Photon. Technol. Lett. 14, 840-842 (2002).
[CrossRef]

S. W. Chan and C. Shu, "Harmonically mode-locked fiber laser with optically selectable wavelength," IEEE Photon. Technol. Lett. 14, 771-773 (2002).
[CrossRef]

S. Yang, Z. Li, X. Dong, S. Yuan, G. Kai, and Q. Zhao, "Generation of wavelength-switched optical pulse from a fiber ring laser with an F-P semiconductor modulator and a HiBi fiber-loop mirror," IEEE Photon. Technol. Lett. 14, 774-776 (2002).
[CrossRef]

2001 (1)

D. Zhao, K. T. Chan, Y. Liu, L. Zhang, and I. Bennion, "Wavelength-switched optical pulse generation in a fiber ring laser with a Fabry-Perot semiconductor modulator and a sampled fiber Bragg grating," IEEE Photon. Technol. Lett. 13, 191-193 (2001).
[CrossRef]

2000 (2)

M.-Y. Jeon, H. K. Lee, J. T. Ahn, D. S. Lim, D. I. Chang, K. H. Kim, and S. B. Kang, "Wideband wavelength tunable mode-locked fibre laser over 1557-1607 nm," Electron. Lett. 36, 300-302 (2000).
[CrossRef]

K. Chan and C. Shu, "Electrical switching of wavelength in actively mode-locked fiber laser incorporating fiber Bragg gratings," Electron. Lett,  36, 42-43 (2000).
[CrossRef]

1999 (1)

1998 (1)

S. Li and K. T. Chan, "Electrical wavelength-tunable actively mode-locked fiber ring laser with a linearly chirped fiber Bragg grating," IEEE Photon. Technol. Lett. 10, 799-801 (1998).
[CrossRef]

1997 (1)

S. Li, K. T. Chan, H. Ding, and Z. Fang, "Electrical wavelength switching of mode-locked Er-doped fiber ring laser with two fiber gratings," Proc. Conf. Lasers Electo-Optics 11, 473-474 (1997).

Ahn, J. T.

M.-Y. Jeon, H. K. Lee, J. T. Ahn, D. S. Lim, D. I. Chang, K. H. Kim, and S. B. Kang, "Wideband wavelength tunable mode-locked fibre laser over 1557-1607 nm," Electron. Lett. 36, 300-302 (2000).
[CrossRef]

Bennion, I.

D. Zhao, K. T. Chan, Y. Liu, L. Zhang, and I. Bennion, "Wavelength-switched optical pulse generation in a fiber ring laser with a Fabry-Perot semiconductor modulator and a sampled fiber Bragg grating," IEEE Photon. Technol. Lett. 13, 191-193 (2001).
[CrossRef]

Chan, K.

K. Chan and C. Shu, "Electrical switching of wavelength in actively mode-locked fiber laser incorporating fiber Bragg gratings," Electron. Lett,  36, 42-43 (2000).
[CrossRef]

Chan, K. T.

J. He and K. T. Chan, "Generation and wavelength switching of picosecond pulses by optically modulating a semiconductor optical amplifier in a fiber laser with optical delay line," IEEE Photon. Technol. Lett. 15, 798-800 (2003).
[CrossRef]

D. Zhao, K. T. Chan, Y. Liu, L. Zhang, and I. Bennion, "Wavelength-switched optical pulse generation in a fiber ring laser with a Fabry-Perot semiconductor modulator and a sampled fiber Bragg grating," IEEE Photon. Technol. Lett. 13, 191-193 (2001).
[CrossRef]

S. Li and K. T. Chan, "Electrical wavelength-tunable actively mode-locked fiber ring laser with a linearly chirped fiber Bragg grating," IEEE Photon. Technol. Lett. 10, 799-801 (1998).
[CrossRef]

S. Li, K. T. Chan, H. Ding, and Z. Fang, "Electrical wavelength switching of mode-locked Er-doped fiber ring laser with two fiber gratings," Proc. Conf. Lasers Electo-Optics 11, 473-474 (1997).

Chan, S. W.

S. W. Chan and C. Shu, "Harmonically mode-locked fiber laser with optically selectable wavelength," IEEE Photon. Technol. Lett. 14, 771-773 (2002).
[CrossRef]

Chang, D. I.

M.-Y. Jeon, H. K. Lee, J. T. Ahn, D. S. Lim, D. I. Chang, K. H. Kim, and S. B. Kang, "Wideband wavelength tunable mode-locked fibre laser over 1557-1607 nm," Electron. Lett. 36, 300-302 (2000).
[CrossRef]

Chang, J.-Y.

Dagenais, M.

L. Duan, M. Dagenais, and J. Goldhar, "Smoothly wavelength-tunable picosecond pulse generation using a harmonically mode-locked fiber ring laser," J. Lightwave Technol,  21, 930-937 (2003).
[CrossRef]

L. Duan, C. J. K. Richardson, Z. Hu, M. Dagenais, and J. Goldhar, "A stable smoothly wavelength-tunable picosecond pulse generator," IEEE Photon. Technol. Lett. 14, 840-842 (2002).
[CrossRef]

Ding, H.

S. Li, K. T. Chan, H. Ding, and Z. Fang, "Electrical wavelength switching of mode-locked Er-doped fiber ring laser with two fiber gratings," Proc. Conf. Lasers Electo-Optics 11, 473-474 (1997).

Dong, X.

X. Feng, Y. Liu, H. Zhang, Y. Li, S. Yuan, G. Kai, W. Zhang, and X. Dong, "Wide wavelength-switched optical-pulse generation in an L-band mode-locked erbium-doped fiber laser," Microwave Opt. Technol. Lett. 44, 196-199 (2005).
[CrossRef]

S. Yang, Z. Li, X. Dong, S. Yuan, G. Kai, and Q. Zhao, "Generation of wavelength-switched optical pulse from a fiber ring laser with an F-P semiconductor modulator and a HiBi fiber-loop mirror," IEEE Photon. Technol. Lett. 14, 774-776 (2002).
[CrossRef]

Duan, L.

L. Duan, M. Dagenais, and J. Goldhar, "Smoothly wavelength-tunable picosecond pulse generation using a harmonically mode-locked fiber ring laser," J. Lightwave Technol,  21, 930-937 (2003).
[CrossRef]

L. Duan, C. J. K. Richardson, Z. Hu, M. Dagenais, and J. Goldhar, "A stable smoothly wavelength-tunable picosecond pulse generator," IEEE Photon. Technol. Lett. 14, 840-842 (2002).
[CrossRef]

Fang, Z.

S. Li, K. T. Chan, H. Ding, and Z. Fang, "Electrical wavelength switching of mode-locked Er-doped fiber ring laser with two fiber gratings," Proc. Conf. Lasers Electo-Optics 11, 473-474 (1997).

Feng, X.

X. Feng, Y. Liu, H. Zhang, Y. Li, S. Yuan, G. Kai, W. Zhang, and X. Dong, "Wide wavelength-switched optical-pulse generation in an L-band mode-locked erbium-doped fiber laser," Microwave Opt. Technol. Lett. 44, 196-199 (2005).
[CrossRef]

Goldhar, J.

L. Duan, M. Dagenais, and J. Goldhar, "Smoothly wavelength-tunable picosecond pulse generation using a harmonically mode-locked fiber ring laser," J. Lightwave Technol,  21, 930-937 (2003).
[CrossRef]

L. Duan, C. J. K. Richardson, Z. Hu, M. Dagenais, and J. Goldhar, "A stable smoothly wavelength-tunable picosecond pulse generator," IEEE Photon. Technol. Lett. 14, 840-842 (2002).
[CrossRef]

He, J.

J. He and K. T. Chan, "Generation and wavelength switching of picosecond pulses by optically modulating a semiconductor optical amplifier in a fiber laser with optical delay line," IEEE Photon. Technol. Lett. 15, 798-800 (2003).
[CrossRef]

Hu, Z.

L. Duan, C. J. K. Richardson, Z. Hu, M. Dagenais, and J. Goldhar, "A stable smoothly wavelength-tunable picosecond pulse generator," IEEE Photon. Technol. Lett. 14, 840-842 (2002).
[CrossRef]

Jeon, M.-Y.

M.-Y. Jeon, H. K. Lee, J. T. Ahn, D. S. Lim, D. I. Chang, K. H. Kim, and S. B. Kang, "Wideband wavelength tunable mode-locked fibre laser over 1557-1607 nm," Electron. Lett. 36, 300-302 (2000).
[CrossRef]

Kai, G.

X. Feng, Y. Liu, H. Zhang, Y. Li, S. Yuan, G. Kai, W. Zhang, and X. Dong, "Wide wavelength-switched optical-pulse generation in an L-band mode-locked erbium-doped fiber laser," Microwave Opt. Technol. Lett. 44, 196-199 (2005).
[CrossRef]

S. Yang, Z. Li, X. Dong, S. Yuan, G. Kai, and Q. Zhao, "Generation of wavelength-switched optical pulse from a fiber ring laser with an F-P semiconductor modulator and a HiBi fiber-loop mirror," IEEE Photon. Technol. Lett. 14, 774-776 (2002).
[CrossRef]

Kanamri, T.

Kang, S. B.

M.-Y. Jeon, H. K. Lee, J. T. Ahn, D. S. Lim, D. I. Chang, K. H. Kim, and S. B. Kang, "Wideband wavelength tunable mode-locked fibre laser over 1557-1607 nm," Electron. Lett. 36, 300-302 (2000).
[CrossRef]

Kim, K. H.

M.-Y. Jeon, H. K. Lee, J. T. Ahn, D. S. Lim, D. I. Chang, K. H. Kim, and S. B. Kang, "Wideband wavelength tunable mode-locked fibre laser over 1557-1607 nm," Electron. Lett. 36, 300-302 (2000).
[CrossRef]

Lee, H. K.

M.-Y. Jeon, H. K. Lee, J. T. Ahn, D. S. Lim, D. I. Chang, K. H. Kim, and S. B. Kang, "Wideband wavelength tunable mode-locked fibre laser over 1557-1607 nm," Electron. Lett. 36, 300-302 (2000).
[CrossRef]

Li, S.

S. Li and K. T. Chan, "Electrical wavelength-tunable actively mode-locked fiber ring laser with a linearly chirped fiber Bragg grating," IEEE Photon. Technol. Lett. 10, 799-801 (1998).
[CrossRef]

S. Li, K. T. Chan, H. Ding, and Z. Fang, "Electrical wavelength switching of mode-locked Er-doped fiber ring laser with two fiber gratings," Proc. Conf. Lasers Electo-Optics 11, 473-474 (1997).

Li, Y.

X. Feng, Y. Liu, H. Zhang, Y. Li, S. Yuan, G. Kai, W. Zhang, and X. Dong, "Wide wavelength-switched optical-pulse generation in an L-band mode-locked erbium-doped fiber laser," Microwave Opt. Technol. Lett. 44, 196-199 (2005).
[CrossRef]

Li, Z.

S. Yang, Z. Li, X. Dong, S. Yuan, G. Kai, and Q. Zhao, "Generation of wavelength-switched optical pulse from a fiber ring laser with an F-P semiconductor modulator and a HiBi fiber-loop mirror," IEEE Photon. Technol. Lett. 14, 774-776 (2002).
[CrossRef]

Liao, Y.-S.

Lim, D. S.

M.-Y. Jeon, H. K. Lee, J. T. Ahn, D. S. Lim, D. I. Chang, K. H. Kim, and S. B. Kang, "Wideband wavelength tunable mode-locked fibre laser over 1557-1607 nm," Electron. Lett. 36, 300-302 (2000).
[CrossRef]

Lin, G.-R.

Liu, Y.

X. Feng, Y. Liu, H. Zhang, Y. Li, S. Yuan, G. Kai, W. Zhang, and X. Dong, "Wide wavelength-switched optical-pulse generation in an L-band mode-locked erbium-doped fiber laser," Microwave Opt. Technol. Lett. 44, 196-199 (2005).
[CrossRef]

D. Zhao, K. T. Chan, Y. Liu, L. Zhang, and I. Bennion, "Wavelength-switched optical pulse generation in a fiber ring laser with a Fabry-Perot semiconductor modulator and a sampled fiber Bragg grating," IEEE Photon. Technol. Lett. 13, 191-193 (2001).
[CrossRef]

Lu, H.-H.

Ohishi, Y.

Ono, H.

Richardson, C. J. K.

L. Duan, C. J. K. Richardson, Z. Hu, M. Dagenais, and J. Goldhar, "A stable smoothly wavelength-tunable picosecond pulse generator," IEEE Photon. Technol. Lett. 14, 840-842 (2002).
[CrossRef]

Shu, C.

S. W. Chan and C. Shu, "Harmonically mode-locked fiber laser with optically selectable wavelength," IEEE Photon. Technol. Lett. 14, 771-773 (2002).
[CrossRef]

K. Chan and C. Shu, "Electrical switching of wavelength in actively mode-locked fiber laser incorporating fiber Bragg gratings," Electron. Lett,  36, 42-43 (2000).
[CrossRef]

Sudo, S.

Yamada, M.

Yang, S.

S. Yang, Z. Li, X. Dong, S. Yuan, G. Kai, and Q. Zhao, "Generation of wavelength-switched optical pulse from a fiber ring laser with an F-P semiconductor modulator and a HiBi fiber-loop mirror," IEEE Photon. Technol. Lett. 14, 774-776 (2002).
[CrossRef]

Yuan, S.

X. Feng, Y. Liu, H. Zhang, Y. Li, S. Yuan, G. Kai, W. Zhang, and X. Dong, "Wide wavelength-switched optical-pulse generation in an L-band mode-locked erbium-doped fiber laser," Microwave Opt. Technol. Lett. 44, 196-199 (2005).
[CrossRef]

S. Yang, Z. Li, X. Dong, S. Yuan, G. Kai, and Q. Zhao, "Generation of wavelength-switched optical pulse from a fiber ring laser with an F-P semiconductor modulator and a HiBi fiber-loop mirror," IEEE Photon. Technol. Lett. 14, 774-776 (2002).
[CrossRef]

Zhang, H.

X. Feng, Y. Liu, H. Zhang, Y. Li, S. Yuan, G. Kai, W. Zhang, and X. Dong, "Wide wavelength-switched optical-pulse generation in an L-band mode-locked erbium-doped fiber laser," Microwave Opt. Technol. Lett. 44, 196-199 (2005).
[CrossRef]

Zhang, L.

D. Zhao, K. T. Chan, Y. Liu, L. Zhang, and I. Bennion, "Wavelength-switched optical pulse generation in a fiber ring laser with a Fabry-Perot semiconductor modulator and a sampled fiber Bragg grating," IEEE Photon. Technol. Lett. 13, 191-193 (2001).
[CrossRef]

Zhang, W.

X. Feng, Y. Liu, H. Zhang, Y. Li, S. Yuan, G. Kai, W. Zhang, and X. Dong, "Wide wavelength-switched optical-pulse generation in an L-band mode-locked erbium-doped fiber laser," Microwave Opt. Technol. Lett. 44, 196-199 (2005).
[CrossRef]

Zhao, D.

D. Zhao, K. T. Chan, Y. Liu, L. Zhang, and I. Bennion, "Wavelength-switched optical pulse generation in a fiber ring laser with a Fabry-Perot semiconductor modulator and a sampled fiber Bragg grating," IEEE Photon. Technol. Lett. 13, 191-193 (2001).
[CrossRef]

Zhao, Q.

S. Yang, Z. Li, X. Dong, S. Yuan, G. Kai, and Q. Zhao, "Generation of wavelength-switched optical pulse from a fiber ring laser with an F-P semiconductor modulator and a HiBi fiber-loop mirror," IEEE Photon. Technol. Lett. 14, 774-776 (2002).
[CrossRef]

Electron. Lett (1)

K. Chan and C. Shu, "Electrical switching of wavelength in actively mode-locked fiber laser incorporating fiber Bragg gratings," Electron. Lett,  36, 42-43 (2000).
[CrossRef]

Electron. Lett. (1)

M.-Y. Jeon, H. K. Lee, J. T. Ahn, D. S. Lim, D. I. Chang, K. H. Kim, and S. B. Kang, "Wideband wavelength tunable mode-locked fibre laser over 1557-1607 nm," Electron. Lett. 36, 300-302 (2000).
[CrossRef]

IEEE Photon. Technol. Lett. (6)

S. Yang, Z. Li, X. Dong, S. Yuan, G. Kai, and Q. Zhao, "Generation of wavelength-switched optical pulse from a fiber ring laser with an F-P semiconductor modulator and a HiBi fiber-loop mirror," IEEE Photon. Technol. Lett. 14, 774-776 (2002).
[CrossRef]

L. Duan, C. J. K. Richardson, Z. Hu, M. Dagenais, and J. Goldhar, "A stable smoothly wavelength-tunable picosecond pulse generator," IEEE Photon. Technol. Lett. 14, 840-842 (2002).
[CrossRef]

S. Li and K. T. Chan, "Electrical wavelength-tunable actively mode-locked fiber ring laser with a linearly chirped fiber Bragg grating," IEEE Photon. Technol. Lett. 10, 799-801 (1998).
[CrossRef]

J. He and K. T. Chan, "Generation and wavelength switching of picosecond pulses by optically modulating a semiconductor optical amplifier in a fiber laser with optical delay line," IEEE Photon. Technol. Lett. 15, 798-800 (2003).
[CrossRef]

S. W. Chan and C. Shu, "Harmonically mode-locked fiber laser with optically selectable wavelength," IEEE Photon. Technol. Lett. 14, 771-773 (2002).
[CrossRef]

D. Zhao, K. T. Chan, Y. Liu, L. Zhang, and I. Bennion, "Wavelength-switched optical pulse generation in a fiber ring laser with a Fabry-Perot semiconductor modulator and a sampled fiber Bragg grating," IEEE Photon. Technol. Lett. 13, 191-193 (2001).
[CrossRef]

J. Lightwave Technol (1)

L. Duan, M. Dagenais, and J. Goldhar, "Smoothly wavelength-tunable picosecond pulse generation using a harmonically mode-locked fiber ring laser," J. Lightwave Technol,  21, 930-937 (2003).
[CrossRef]

J. Lightwave Technol. (1)

Microwave Opt. Technol. Lett. (1)

X. Feng, Y. Liu, H. Zhang, Y. Li, S. Yuan, G. Kai, W. Zhang, and X. Dong, "Wide wavelength-switched optical-pulse generation in an L-band mode-locked erbium-doped fiber laser," Microwave Opt. Technol. Lett. 44, 196-199 (2005).
[CrossRef]

Opt. Express (1)

Proc. Conf. Lasers Electo-Optics (1)

S. Li, K. T. Chan, H. Ding, and Z. Fang, "Electrical wavelength switching of mode-locked Er-doped fiber ring laser with two fiber gratings," Proc. Conf. Lasers Electo-Optics 11, 473-474 (1997).

Other (2)

M. X. Ma, M. Nissov, H. Li, M. A. Mills, G. Yang, H. D. Kidorf, A. Srivastava, J. Sulhoff, C. Wolf, Y. Sun, and D. W. Peckhan, "765 Gb/s over 2,000 km transmission using C- and L-band erbium doped fiber amplifiers," Paper PD, OFC99, Feb. 1999, (San Diego, USA).

G. P. Agrawal, Nonlinear Fiber Optics (Academic Press, San Diego, 2001), Chap. 3.

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Figures (9)

Fig. 1.
Fig. 1.

Schematic diagram of the mode-locked EDFL with a TROC-based wavelength tuning configuration. Amp: microwave amplifier; COMB: electrical comb generator; MZM: Mach-Zehnder modulator; PC: polarization controller; RFS: radio-frequency synthesizer; TROC: tunable-ration optical coupler; WDM: wavelength division multiplexing coupler.

Fig. 2.
Fig. 2.

The peak powers and pulsewidths (FWHM) of the mode-locked EDFL pulses at output coupling ratios of 10% (left), 50% (middle), and 90% (right).

Fig. 3.
Fig. 3.

The 3-dB spectral linewidth and central wavelength of the output EDFL spectra as the output coupling ratio detunes from 10% to 90%.

Fig. 4.
Fig. 4.

The peak power and the pulsewidth of the pulses as the output coupling ratio adjust from 10% to 90%. Inset: The autocorrelation traces of the output pulses.

Fig. 5.
Fig. 5.

Side-mode RF spectrum of the output EDFL pulses at 1599.3 nm under 10% output coupling ratio.

Fig. 6.
Fig. 6.

The optical spectra of the L-band mode-locked EDFL before and after the SMF based linear chirp compensator.

Fig. 7.
Fig. 7.

Variation of pulsewidth by adding different length of the SMF from 22.5 m to 37.5 m. Inset: The autocorrelation traces of the output pulses before (black curve) and after adding SMF (red curve) at 10% output coupling ratio.

Fig. 8.
Fig. 8.

The autocorrelation traces of the output pulses after adding 32.5 m SMF at 10%, 50%, and 90% output coupling ratio.

Fig. 9.
Fig. 9.

The linearly compensated pulsewidth and corresponding compression ratio of the mode-locked EDFL pulse obtained at different output coupling ratios.

Tables (1)

Tables Icon

Table 1. The tuning range, the narrowest pulsewidth, and timing jitter in three different situations.

Metrics